Antibody data
- Antibody Data
- Antigen structure
- References [92]
- Comments [0]
- Validations
- Immunocytochemistry [1]
- Other assay [134]
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- Product number
- 42-5698-80 - Provider product page
- Provider
- Invitrogen Antibodies
- Product name
- Ki-67 Monoclonal Antibody (SolA15), eFluor™ 615, eBioscience™
- Antibody type
- Monoclonal
- Antigen
- Other
- Description
- Description: The monoclonal antibody SolA15 recognizes mouse and rat Ki-67, a 300 kDa nuclear protein. Ki-67 is present during all active phases of the cell cycle (G1, S, G2, and mitosis), but is absent from resting cells (G0). Ki-67 is detected within the nucleus during interphase but redistributes to the chromosomes during mitosis. Ki-67 is used as a marker for determining the growth fraction of a given population of cells. In studies of tumor cells, the "Ki-67 labeling index" refers to the number of Ki-67 positive cells within the population and this is used to predict outcome of particular cancer types. Ki-67 has been shown to interact with the DNA-bound protein chromobox protein homolog 3 (CBX3) (heterochromatin). The SolA15 antibody also recognizes human, non-human primate and canine Ki-67. Applications Reported: This SolA15 antibody has been reported for use in immunocytochemistry and immunohistochemistry. Applications Tested: This SolA15 antibody has been tested by immunocytochemistry on fixed and permeabilized C2C12 cells at less than or equal to 0.5 µg/mL. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest.This product has not been validated for flow cytometric analysis. Filter Recommendation: When using this eFluor® 615 antibody conjugate, we recommend a filter that will capture the 615 emission wavelength. (for example Excitation 560/55, 585LP, Emission 645/75) A standard Alexa Fluor® 594 filter is acceptable. Excitation: 595 nm; Emission: 615 nm. Filtration: 0.2 µm post-manufacturing filtered.
- Reactivity
- Human, Mouse, Rat, Canine
- Host
- Rat
- Isotype
- IgG
- Antibody clone number
- SolA15
- Vial size
- 25 µg
- Concentration
- 0.2 mg/mL
- Storage
- 4° C, store in dark, DO NOT FREEZE!
Submitted references Inhibition of LncRNA Vof-16 expression promotes nerve regeneration and functional recovery after spinal cord injury.
Application of an instructive hydrogel accelerates re-epithelialization of xenografted human skin wounds.
Gene Signatures Detect Damaged Liver Sinusoidal Endothelial Cells in Chronic Liver Diseases.
Imbalanced Activation of Wnt-/β-Catenin-Signaling in Liver Endothelium Alters Normal Sinusoidal Differentiation.
NEIL3-deficiency increases gut permeability and contributes to a pro-atherogenic metabolic phenotype.
Age-related neurodegeneration and cognitive impairments of NRMT1 knockout mice are preceded by misregulation of RB and abnormal neural stem cell development.
TWIK-1 BAC-GFP Transgenic Mice, an Animal Model for TWIK-1 Expression.
Visualization of individual cell division history in complex tissues using iCOUNT.
IL-1beta promotes the age-associated decline of beta cell function.
Adult neural stem cells have latent inflammatory potential that is kept suppressed by Tcf4 to facilitate adult neurogenesis.
Developmental Role of Adenosine Kinase in the Cerebellum.
Notch Signaling between Cerebellar Granule Cell Progenitors.
Environmental oxygen regulates astrocyte proliferation to guide angiogenesis during retinal development.
Field size effects on DNA damage and proliferation in normal human cell populations irradiated with X-ray microbeams.
A booster dose enhances immunogenicity of the COVID-19 vaccine candidate ChAdOx1 nCoV-19 in aged mice.
Thrombospondin-2 spatiotemporal expression in skeletal fractures.
CXCR4 Regulates Temporal Differentiation via PRC1 Complex in Organogenesis of Epithelial Glands.
Heterogeneity of astrocytes: Electrophysiological properties of juxtavascular astrocytes before and after brain injury.
Requirement of DNMT1 to orchestrate epigenomic reprogramming for NPM-ALK-driven lymphomagenesis.
Transcription factor old astrocyte specifically induced substance is a novel regulator of kidney fibrosis.
Dissecting phenotypic transitions in metastatic disease via photoconversion-based isolation.
An mTORC1-dependent switch orchestrates the transition between mouse spermatogonial stem cells and clones of progenitor spermatogonia.
GTSE1 is possibly involved in the DNA damage repair and cisplatin resistance in osteosarcoma.
Epicardial placement of human MSC-loaded fibrin sealant films for heart failure: Preclinical efficacy and mechanistic data.
MicroRNA-384 inhibits nasopharyngeal carcinoma growth and metastasis via binding to Smad5 and suppressing the Wnt/β-catenin axis.
CDCP1 promotes compensatory renal growth by integrating Src and Met signaling.
Delta-like 4 is required for pulmonary vascular arborization and alveolarization in the developing lung.
Ten-eleven translocation protein 1 modulates medulloblastoma progression.
Targeting Feedforward Loops Formed by Nuclear Receptor RORγ and Kinase PBK in mCRPC with Hyperactive AR Signaling.
Aripiprazole reduces liver cell division.
Changes in Liver Mechanical Properties and Water Diffusivity During Normal Pregnancy Are Driven by Cellular Hypertrophy.
Radiation Induced Metabolic Alterations Associate With Tumor Aggressiveness and Poor Outcome in Glioblastoma.
The effects of hedgehog ligand neutralising antibody 5E1 in a mouse model of endometriosis.
Egr2-guided histone H2B monoubiquitination is required for peripheral nervous system myelination.
Novel enhanced GFP-positive congenic inbred strain establishment and application of tumor-bearing nude mouse model.
B Cell Activating Factor (BAFF) Is Required for the Development of Intra-Renal Tertiary Lymphoid Organs in Experimental Kidney Transplantation in Rats.
Regeneration of the pulmonary vascular endothelium after viral pneumonia requires COUP-TF2.
Epithelial Vegfa Specifies a Distinct Endothelial Population in the Mouse Lung.
Metastasis-initiating cells induce and exploit a fibroblast niche to fuel malignant colonization of the lungs.
Transcriptome analysis of basic fibroblast growth factor treated stem cells isolated from human exfoliated deciduous teeth.
A single-cell transcriptomic and anatomic atlas of mouse dorsal raphe Pet1 neurons.
Comparative Analysis of Age-Related Changes in Lacrimal Glands and Meibomian Glands of a C57BL/6 Male Mouse Model.
Genetic manipulation of LKB1 elicits lethal metastatic prostate cancer.
FGF2 modulates simultaneously the mode, the rate of division and the growth fraction in cultures of radial glia.
Quinazolinone derivative BNUA-3 ameliorated [NDEA+2-AAF]-induced liver carcinogenesis in SD rats by modulating AhR-CYP1B1-Nrf2-Keap1 pathway.
Follicular Regulatory T Cells Can Access the Germinal Center Independently of CXCR5.
Interleukin-13 disrupts type 2 pneumocyte stem cell activity.
Multimodal single-cell analysis reveals distinct radioresistant stem-like and progenitor cell populations in murine glioma.
Human Lung Stem Cell-Based Alveolospheres Provide Insights into SARS-CoV-2-Mediated Interferon Responses and Pneumocyte Dysfunction.
Elevated Serum Amino Acids Induce a Subpopulation of Alpha Cells to Initiate Pancreatic Neuroendocrine Tumor Formation.
A discrete subtype of neural progenitor crucial for cortical folding in the gyrencephalic mammalian brain.
Lymphoid Aggregates in the CNS of Progressive Multiple Sclerosis Patients Lack Regulatory T Cells.
Sensing of apoptotic cells through Axl causes lung basal cell proliferation in inflammatory diseases.
SORLA regulates endosomal trafficking and oncogenic fitness of HER2.
Deficiency in the secreted protein Semaphorin3d causes abnormal parathyroid development in mice.
Soluble TREM2 ameliorates pathological phenotypes by modulating microglial functions in an Alzheimer's disease model.
Live imaging of alveologenesis in precision-cut lung slices reveals dynamic epithelial cell behaviour.
Comprehensive and cell-type-based characterization of the dorsal midbrain during development.
JAK-STAT inhibition impairs K-RAS-driven lung adenocarcinoma progression.
Anti-commensal IgG Drives Intestinal Inflammation and Type 17 Immunity in Ulcerative Colitis.
C-Kit Cardiac Progenitor Cell Based Cell Sheet Improves Vascularization and Attenuates Cardiac Remodeling following Myocardial Infarction in Rats.
Factors Within the Endoneurial Microenvironment Act to Suppress Tumorigenesis of MPNST.
ARTS mediates apoptosis and regeneration of the intestinal stem cell niche.
Selective pharmacological inhibition of DDR1 prevents experimentally-induced glomerulonephritis in prevention and therapeutic regime.
Vitreous Cytokine Expression and a Murine Model Suggest a Key Role of Microglia in the Inflammatory Response to Retinal Detachment.
Inhibition of histone deacetylase 1 ameliorates renal tubulointerstitial fibrosis via modulation of inflammation and extracellular matrix gene transcription in mice.
Dual-targeting Wnt and uPA receptors using peptide conjugated ultra-small nanoparticle drug carriers inhibited cancer stem-cell phenotype in chemo-resistant breast cancer.
Defining Lineage Potential and Fate Behavior of Precursors during Pancreas Development.
The Ror1 receptor tyrosine kinase plays a critical role in regulating satellite cell proliferation during regeneration of injured muscle.
Histone variant H2A.J accumulates in senescent cells and promotes inflammatory gene expression.
IL-4 as a Repurposed Biological Drug for Myocardial Infarction through Augmentation of Reparative Cardiac Macrophages: Proof-of-Concept Data in Mice.
The Lymphatic Endothelial mCLCA1 Antibody Induces Proliferation and Growth of Lymph Node Lymphatic Sinuses.
Host-Protozoan Interactions Protect from Mucosal Infections through Activation of the Inflammasome.
Whole Chromosome Instability induces senescence and promotes SASP.
Hyaluronan and TLR4 promote surfactant-protein-C-positive alveolar progenitor cell renewal and prevent severe pulmonary fibrosis in mice.
The cell proliferation antigen Ki-67 organises heterochromatin.
Image-based detection and targeting of therapy resistance in pancreatic adenocarcinoma.
RANKL/RANK control Brca1 mutation- .
Heterogeneous fibroblasts underlie age-dependent tertiary lymphoid tissues in the kidney.
Detection of Cell Proliferation Markers by Immunofluorescence Staining and Microscopy Imaging in Paraffin-Embedded Tissue Sections.
Lineage-specific enhancers activate self-renewal genes in macrophages and embryonic stem cells.
Suppression of ischemia in arterial occlusive disease by JNK-promoted native collateral artery development.
Epithelial-to-mesenchymal transition induces cell cycle arrest and parenchymal damage in renal fibrosis.
Low levels of endogenous or X-ray-induced DNA double-strand breaks activate apoptosis in adult neural stem cells.
NF-κB-induced microRNA-31 promotes epidermal hyperplasia by repressing protein phosphatase 6 in psoriasis.
The adhesion G protein-coupled receptor GPR56 is a cell-autonomous regulator of oligodendrocyte development.
Alveolar progenitor and stem cells in lung development, renewal and cancer.
Myeloid cells expressing VEGF and arginase-1 following uptake of damaged retinal pigment epithelium suggests potential mechanism that drives the onset of choroidal angiogenesis in mice.
Small intestine inflammation in Roquin-mutant and Roquin-deficient mice.
Dedifferentiation of committed epithelial cells into stem cells in vivo.
IL-1R signaling in dendritic cells replaces pattern-recognition receptors in promoting CD8⁺ T cell responses to influenza A virus.
Primate B-1 cells generate antigen-specific B cell responses to T cell-independent type 2 antigens.
Zhang XM, Zeng LN, Yang WY, Ding L, Chen KZ, Fu WJ, Zeng SQ, Liang YR, Chen GH, Wu HF
Neural regeneration research 2022 Jan;17(1):217-227
Neural regeneration research 2022 Jan;17(1):217-227
Application of an instructive hydrogel accelerates re-epithelialization of xenografted human skin wounds.
Sparks HD, Mandla S, Vizely K, Rosin N, Radisic M, Biernaskie J
Scientific reports 2022 Aug 20;12(1):14233
Scientific reports 2022 Aug 20;12(1):14233
Gene Signatures Detect Damaged Liver Sinusoidal Endothelial Cells in Chronic Liver Diseases.
Verhulst S, van Os EA, De Smet V, Eysackers N, Mannaerts I, van Grunsven LA
Frontiers in medicine 2021;8:750044
Frontiers in medicine 2021;8:750044
Imbalanced Activation of Wnt-/β-Catenin-Signaling in Liver Endothelium Alters Normal Sinusoidal Differentiation.
Koch PS, Sandorski K, Heil J, Schmid CD, Kürschner SW, Hoffmann J, Winkler M, Staniczek T, de la Torre C, Sticht C, Schledzewski K, Taketo MM, Trogisch FA, Heineke J, Géraud C, Goerdt S, Olsavszky V
Frontiers in physiology 2021;12:722394
Frontiers in physiology 2021;12:722394
NEIL3-deficiency increases gut permeability and contributes to a pro-atherogenic metabolic phenotype.
Karlsen TR, Kong XY, Holm S, Quiles-Jiménez A, Dahl TB, Yang K, Sagen EL, Skarpengland T, S Øgaard JD, Holm K, Vestad B, Olsen MB, Aukrust P, Bjørås M, Hov JR, Halvorsen B, Gregersen I
Scientific reports 2021 Oct 5;11(1):19749
Scientific reports 2021 Oct 5;11(1):19749
Age-related neurodegeneration and cognitive impairments of NRMT1 knockout mice are preceded by misregulation of RB and abnormal neural stem cell development.
Catlin JP, Marziali LN, Rein B, Yan Z, Feltri ML, Schaner Tooley CE
Cell death & disease 2021 Oct 28;12(11):1014
Cell death & disease 2021 Oct 28;12(11):1014
TWIK-1 BAC-GFP Transgenic Mice, an Animal Model for TWIK-1 Expression.
Kwon O, Yang H, Kim SC, Kim J, Sim J, Lee J, Hwang EM, Shim S, Park JY
Cells 2021 Oct 14;10(10)
Cells 2021 Oct 14;10(10)
Visualization of individual cell division history in complex tissues using iCOUNT.
Denoth-Lippuner A, Jaeger BN, Liang T, Royall LN, Chie SE, Buthey K, Machado D, Korobeynyk VI, Kruse M, Munz CM, Gerbaulet A, Simons BD, Jessberger S
Cell stem cell 2021 Nov 4;28(11):2020-2034.e12
Cell stem cell 2021 Nov 4;28(11):2020-2034.e12
IL-1beta promotes the age-associated decline of beta cell function.
Böni-Schnetzler M, Méreau H, Rachid L, Wiedemann SJ, Schulze F, Trimigliozzi K, Meier DT, Donath MY
iScience 2021 Nov 19;24(11):103250
iScience 2021 Nov 19;24(11):103250
Adult neural stem cells have latent inflammatory potential that is kept suppressed by Tcf4 to facilitate adult neurogenesis.
Shariq M, Sahasrabuddhe V, Krishna S, Radha S, Nruthyathi, Bellampalli R, Dwivedi A, Cheramangalam R, Reizis B, Hébert J, Ghosh HS
Science advances 2021 May;7(21)
Science advances 2021 May;7(21)
Developmental Role of Adenosine Kinase in the Cerebellum.
Gebril H, Wahba A, Zhou X, Lai T, Alharfoush E, DiCicco-Bloom E, Boison D
eNeuro 2021 May-Jun;8(3)
eNeuro 2021 May-Jun;8(3)
Notch Signaling between Cerebellar Granule Cell Progenitors.
Adachi T, Miyashita S, Yamashita M, Shimoda M, Okonechnikov K, Chavez L, Kool M, Pfister SM, Inoue T, Kawauchi D, Hoshino M
eNeuro 2021 May-Jun;8(3)
eNeuro 2021 May-Jun;8(3)
Environmental oxygen regulates astrocyte proliferation to guide angiogenesis during retinal development.
Perelli RM, O'Sullivan ML, Zarnick S, Kay JN
Development (Cambridge, England) 2021 May 1;148(9)
Development (Cambridge, England) 2021 May 1;148(9)
Field size effects on DNA damage and proliferation in normal human cell populations irradiated with X-ray microbeams.
Ojima M, Ito A, Usami N, Ohara M, Suzuki K, Kai M
Scientific reports 2021 Mar 26;11(1):7001
Scientific reports 2021 Mar 26;11(1):7001
A booster dose enhances immunogenicity of the COVID-19 vaccine candidate ChAdOx1 nCoV-19 in aged mice.
Silva-Cayetano A, Foster WS, Innocentin S, Belij-Rammerstorfer S, Spencer AJ, Burton OT, Fra-Bidó S, Le Lee J, Thakur N, Conceicao C, Wright D, Barrett J, Evans-Bailey N, Noble C, Bailey D, Liston A, Gilbert SC, Lambe T, Linterman MA
Med (New York, N.Y.) 2021 Mar 12;2(3):243-262.e8
Med (New York, N.Y.) 2021 Mar 12;2(3):243-262.e8
Thrombospondin-2 spatiotemporal expression in skeletal fractures.
Zondervan RL, Jenkins DC, Reicha JD, Hankenson KD
Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2021 Jan;39(1):30-41
Journal of orthopaedic research : official publication of the Orthopaedic Research Society 2021 Jan;39(1):30-41
CXCR4 Regulates Temporal Differentiation via PRC1 Complex in Organogenesis of Epithelial Glands.
Kim J, Lee SW, Park K
International journal of molecular sciences 2021 Jan 10;22(2)
International journal of molecular sciences 2021 Jan 10;22(2)
Heterogeneity of astrocytes: Electrophysiological properties of juxtavascular astrocytes before and after brain injury.
Götz S, Bribian A, López-Mascaraque L, Götz M, Grothe B, Kunz L
Glia 2021 Feb;69(2):346-361
Glia 2021 Feb;69(2):346-361
Requirement of DNMT1 to orchestrate epigenomic reprogramming for NPM-ALK-driven lymphomagenesis.
Redl E, Sheibani-Tezerji R, Cardona CJ, Hamminger P, Timelthaler G, Hassler MR, Zrimšek M, Lagger S, Dillinger T, Hofbauer L, Draganić K, Tiefenbacher A, Kothmayer M, Dietz CH, Ramsahoye BH, Kenner L, Bock C, Seiser C, Ellmeier W, Schweikert G, Egger G
Life science alliance 2021 Feb;4(2)
Life science alliance 2021 Feb;4(2)
Transcription factor old astrocyte specifically induced substance is a novel regulator of kidney fibrosis.
Yamamoto A, Morioki H, Nakae T, Miyake Y, Harada T, Noda S, Mitsuoka S, Matsumoto K, Tomimatsu M, Kanemoto S, Tanaka S, Maeda M, Conway SJ, Imaizumi K, Fujio Y, Obana M
FASEB journal : official publication of the Federation of American Societies for Experimental Biology 2021 Feb;35(2):e21158
FASEB journal : official publication of the Federation of American Societies for Experimental Biology 2021 Feb;35(2):e21158
Dissecting phenotypic transitions in metastatic disease via photoconversion-based isolation.
Sela Y, Li J, Kuri P, Merrell AJ, Li N, Lengner C, Rompolas P, Stanger BZ
eLife 2021 Feb 23;10
eLife 2021 Feb 23;10
An mTORC1-dependent switch orchestrates the transition between mouse spermatogonial stem cells and clones of progenitor spermatogonia.
Suzuki S, McCarrey JR, Hermann BP
Cell reports 2021 Feb 16;34(7):108752
Cell reports 2021 Feb 16;34(7):108752
GTSE1 is possibly involved in the DNA damage repair and cisplatin resistance in osteosarcoma.
Xie C, Xiang W, Shen H, Shen J
Journal of orthopaedic surgery and research 2021 Dec 7;16(1):713
Journal of orthopaedic surgery and research 2021 Dec 7;16(1):713
Epicardial placement of human MSC-loaded fibrin sealant films for heart failure: Preclinical efficacy and mechanistic data.
Fields L, Ito T, Kobayashi K, Ichihara Y, Podaru MN, Hussain M, Yamashita K, Machado V, Lewis-McDougall F, Suzuki K
Molecular therapy : the journal of the American Society of Gene Therapy 2021 Aug 4;29(8):2554-2570
Molecular therapy : the journal of the American Society of Gene Therapy 2021 Aug 4;29(8):2554-2570
MicroRNA-384 inhibits nasopharyngeal carcinoma growth and metastasis via binding to Smad5 and suppressing the Wnt/β-catenin axis.
Zeng X, Liao H, Wang F
Cytotechnology 2021 Apr;73(2):203-215
Cytotechnology 2021 Apr;73(2):203-215
CDCP1 promotes compensatory renal growth by integrating Src and Met signaling.
Kajiwara K, Yamano S, Aoki K, Okuzaki D, Matsumoto K, Okada M
Life science alliance 2021 Apr;4(4)
Life science alliance 2021 Apr;4(4)
Delta-like 4 is required for pulmonary vascular arborization and alveolarization in the developing lung.
Xia S, Menden HL, Townley N, Mabry SM, Johnston J, Nyp MF, Heruth DP, Korfhagen T, Sampath V
JCI insight 2021 Apr 8;6(7)
JCI insight 2021 Apr 8;6(7)
Ten-eleven translocation protein 1 modulates medulloblastoma progression.
Kim H, Kang Y, Li Y, Chen L, Lin L, Johnson ND, Zhu D, Robinson MH, McSwain L, Barwick BG, Yuan X, Liao X, Zhao J, Zhang Z, Shu Q, Chen J, Allen EG, Kenney AM, Castellino RC, Van Meir EG, Conneely KN, Vertino PM, Jin P, Li J
Genome biology 2021 Apr 29;22(1):125
Genome biology 2021 Apr 29;22(1):125
Targeting Feedforward Loops Formed by Nuclear Receptor RORγ and Kinase PBK in mCRPC with Hyperactive AR Signaling.
Zhang X, Huang Z, Wang J, Ma Z, Yang J, Corey E, Evans CP, Yu AM, Chen HW
Cancers 2021 Apr 1;13(7)
Cancers 2021 Apr 1;13(7)
Aripiprazole reduces liver cell division.
Pirc Marolt T, Kramar B, Bulc Rozman K, Šuput D, Milisav I
PloS one 2020;15(10):e0240754
PloS one 2020;15(10):e0240754
Changes in Liver Mechanical Properties and Water Diffusivity During Normal Pregnancy Are Driven by Cellular Hypertrophy.
Garczyńska K, Tzschätzsch H, Kühl AA, Morr AS, Lilaj L, Häckel A, Schellenberger E, Berndt N, Holzhütter HG, Braun J, Sack I, Guo J
Frontiers in physiology 2020;11:605205
Frontiers in physiology 2020;11:605205
Radiation Induced Metabolic Alterations Associate With Tumor Aggressiveness and Poor Outcome in Glioblastoma.
Gupta K, Vuckovic I, Zhang S, Xiong Y, Carlson BL, Jacobs J, Olson I, Petterson XM, Macura SI, Sarkaria J, Burns TC
Frontiers in oncology 2020;10:535
Frontiers in oncology 2020;10:535
The effects of hedgehog ligand neutralising antibody 5E1 in a mouse model of endometriosis.
Cousins FL, Farley JK, Kerrigan R, Mukherjee S, Darzi S, Gargett CE, Deane JA
BMC research notes 2020 Sep 25;13(1):454
BMC research notes 2020 Sep 25;13(1):454
Egr2-guided histone H2B monoubiquitination is required for peripheral nervous system myelination.
Wüst HM, Wegener A, Fröb F, Hartwig AC, Wegwitz F, Kari V, Schimmel M, Tamm ER, Johnsen SA, Wegner M, Sock E
Nucleic acids research 2020 Sep 18;48(16):8959-8976
Nucleic acids research 2020 Sep 18;48(16):8959-8976
Novel enhanced GFP-positive congenic inbred strain establishment and application of tumor-bearing nude mouse model.
Lan Q, Chen Y, Dai C, Li S, Fei X, Dong J, Shen Y, Dai X, Lu Z, Liu B, Wang Q, Wang H, Zhou Z, Ji X, Wang Z, Huang Q
Cancer science 2020 Oct;111(10):3626-3638
Cancer science 2020 Oct;111(10):3626-3638
B Cell Activating Factor (BAFF) Is Required for the Development of Intra-Renal Tertiary Lymphoid Organs in Experimental Kidney Transplantation in Rats.
Steines L, Poth H, Herrmann M, Schuster A, Banas B, Bergler T
International journal of molecular sciences 2020 Oct 28;21(21)
International journal of molecular sciences 2020 Oct 28;21(21)
Regeneration of the pulmonary vascular endothelium after viral pneumonia requires COUP-TF2.
Zhao G, Weiner AI, Neupauer KM, de Mello Costa MF, Palashikar G, Adams-Tzivelekidis S, Mangalmurti NS, Vaughan AE
Science advances 2020 Nov;6(48)
Science advances 2020 Nov;6(48)
Epithelial Vegfa Specifies a Distinct Endothelial Population in the Mouse Lung.
Vila Ellis L, Cain MP, Hutchison V, Flodby P, Crandall ED, Borok Z, Zhou B, Ostrin EJ, Wythe JD, Chen J
Developmental cell 2020 Mar 9;52(5):617-630.e6
Developmental cell 2020 Mar 9;52(5):617-630.e6
Metastasis-initiating cells induce and exploit a fibroblast niche to fuel malignant colonization of the lungs.
Pein M, Insua-Rodríguez J, Hongu T, Riedel A, Meier J, Wiedmann L, Decker K, Essers MAG, Sinn HP, Spaich S, Sütterlin M, Schneeweiss A, Trumpp A, Oskarsson T
Nature communications 2020 Mar 20;11(1):1494
Nature communications 2020 Mar 20;11(1):1494
Transcriptome analysis of basic fibroblast growth factor treated stem cells isolated from human exfoliated deciduous teeth.
Nowwarote N, Manokawinchoke J, Kanjana K, Fournier BPJ, Sukarawan W, Osathanon T
Heliyon 2020 Jun;6(6):e04246
Heliyon 2020 Jun;6(6):e04246
A single-cell transcriptomic and anatomic atlas of mouse dorsal raphe Pet1 neurons.
Okaty BW, Sturrock N, Escobedo Lozoya Y, Chang Y, Senft RA, Lyon KA, Alekseyenko OV, Dymecki SM
eLife 2020 Jun 22;9
eLife 2020 Jun 22;9
Comparative Analysis of Age-Related Changes in Lacrimal Glands and Meibomian Glands of a C57BL/6 Male Mouse Model.
Yoon CH, Ryu JS, Hwang HS, Kim MK
International journal of molecular sciences 2020 Jun 11;21(11)
International journal of molecular sciences 2020 Jun 11;21(11)
Genetic manipulation of LKB1 elicits lethal metastatic prostate cancer.
Hermanova I, Zúñiga-García P, Caro-Maldonado A, Fernandez-Ruiz S, Salvador F, Martín-Martín N, Zabala-Letona A, Nuñez-Olle M, Torrano V, Camacho L, Lizcano JM, Talamillo A, Carreira S, Gurel B, Cortazar AR, Guiu M, López JI, Martinez-Romero A, Astobiza I, Valcarcel-Jimenez L, Lorente M, Arruabarrena-Aristorena A, Velasco G, Gomez-Muñoz A, Suárez-Cabrera C, Lodewijk I, Flores JM, Sutherland JD, Barrio R, de Bono JS, Paramio JM, Trka J, Graupera M, Gomis RR, Carracedo A
The Journal of experimental medicine 2020 Jun 1;217(6)
The Journal of experimental medicine 2020 Jun 1;217(6)
FGF2 modulates simultaneously the mode, the rate of division and the growth fraction in cultures of radial glia.
Ledesma-Terrón M, Peralta-Cañadas N, Míguez DG
Development (Cambridge, England) 2020 Jul 24;147(14)
Development (Cambridge, England) 2020 Jul 24;147(14)
Quinazolinone derivative BNUA-3 ameliorated [NDEA+2-AAF]-induced liver carcinogenesis in SD rats by modulating AhR-CYP1B1-Nrf2-Keap1 pathway.
Bose P, Siddique MUM, Acharya R, Jayaprakash V, Sinha BN, Lapenna A, Pattanayak SP
Clinical and experimental pharmacology & physiology 2020 Jan;47(1):143-157
Clinical and experimental pharmacology & physiology 2020 Jan;47(1):143-157
Follicular Regulatory T Cells Can Access the Germinal Center Independently of CXCR5.
Vanderleyden I, Fra-Bido SC, Innocentin S, Stebegg M, Okkenhaug H, Evans-Bailey N, Pierson W, Denton AE, Linterman MA
Cell reports 2020 Jan 21;30(3):611-619.e4
Cell reports 2020 Jan 21;30(3):611-619.e4
Interleukin-13 disrupts type 2 pneumocyte stem cell activity.
Glisinski KM, Schlobohm AJ, Paramore SV, Birukova A, Moseley MA, Foster MW, Barkauskas CE
JCI insight 2020 Jan 16;5(1)
JCI insight 2020 Jan 16;5(1)
Multimodal single-cell analysis reveals distinct radioresistant stem-like and progenitor cell populations in murine glioma.
Alexander J, LaPlant QC, Pattwell SS, Szulzewsky F, Cimino PJ, Caruso FP, Pugliese P, Chen Z, Chardon F, Hill AJ, Spurrell C, Ahrendsen D, Pietras A, Starita LM, Hambardzumyan D, Iavarone A, Shendure J, Holland EC
Glia 2020 Dec;68(12):2486-2502
Glia 2020 Dec;68(12):2486-2502
Human Lung Stem Cell-Based Alveolospheres Provide Insights into SARS-CoV-2-Mediated Interferon Responses and Pneumocyte Dysfunction.
Katsura H, Sontake V, Tata A, Kobayashi Y, Edwards CE, Heaton BE, Konkimalla A, Asakura T, Mikami Y, Fritch EJ, Lee PJ, Heaton NS, Boucher RC, Randell SH, Baric RS, Tata PR
Cell stem cell 2020 Dec 3;27(6):890-904.e8
Cell stem cell 2020 Dec 3;27(6):890-904.e8
Elevated Serum Amino Acids Induce a Subpopulation of Alpha Cells to Initiate Pancreatic Neuroendocrine Tumor Formation.
Smith DK, Kates L, Durinck S, Patel N, Stawiski EW, Kljavin N, Foreman O, Sipos B, Solloway MJ, Allan BB, Peterson AS
Cell reports. Medicine 2020 Aug 25;1(5):100058
Cell reports. Medicine 2020 Aug 25;1(5):100058
A discrete subtype of neural progenitor crucial for cortical folding in the gyrencephalic mammalian brain.
Matsumoto N, Tanaka S, Horiike T, Shinmyo Y, Kawasaki H
eLife 2020 Apr 21;9
eLife 2020 Apr 21;9
Lymphoid Aggregates in the CNS of Progressive Multiple Sclerosis Patients Lack Regulatory T Cells.
Bell L, Lenhart A, Rosenwald A, Monoranu CM, Berberich-Siebelt F
Frontiers in immunology 2019;10:3090
Frontiers in immunology 2019;10:3090
Sensing of apoptotic cells through Axl causes lung basal cell proliferation in inflammatory diseases.
Fujino N, Brand OJ, Morgan DJ, Fujimori T, Grabiec AM, Jagger CP, Maciewicz RA, Yamada M, Itakura K, Sugiura H, Ichinose M, Hussell T
The Journal of experimental medicine 2019 Sep 2;216(9):2184-2201
The Journal of experimental medicine 2019 Sep 2;216(9):2184-2201
SORLA regulates endosomal trafficking and oncogenic fitness of HER2.
Pietilä M, Sahgal P, Peuhu E, Jäntti NZ, Paatero I, Närvä E, Al-Akhrass H, Lilja J, Georgiadou M, Andersen OM, Padzik A, Sihto H, Joensuu H, Blomqvist M, Saarinen I, Boström PJ, Taimen P, Ivaska J
Nature communications 2019 May 28;10(1):2340
Nature communications 2019 May 28;10(1):2340
Deficiency in the secreted protein Semaphorin3d causes abnormal parathyroid development in mice.
Singh A, Mia MM, Cibi DM, Arya AK, Bhadada SK, Singh MK
The Journal of biological chemistry 2019 May 24;294(21):8336-8347
The Journal of biological chemistry 2019 May 24;294(21):8336-8347
Soluble TREM2 ameliorates pathological phenotypes by modulating microglial functions in an Alzheimer's disease model.
Zhong L, Xu Y, Zhuo R, Wang T, Wang K, Huang R, Wang D, Gao Y, Zhu Y, Sheng X, Chen K, Wang N, Zhu L, Can D, Marten Y, Shinohara M, Liu CC, Du D, Sun H, Wen L, Xu H, Bu G, Chen XF
Nature communications 2019 Mar 25;10(1):1365
Nature communications 2019 Mar 25;10(1):1365
Live imaging of alveologenesis in precision-cut lung slices reveals dynamic epithelial cell behaviour.
Akram KM, Yates LL, Mongey R, Rothery S, Gaboriau DCA, Sanderson J, Hind M, Griffiths M, Dean CH
Nature communications 2019 Mar 12;10(1):1178
Nature communications 2019 Mar 12;10(1):1178
Comprehensive and cell-type-based characterization of the dorsal midbrain during development.
Arimura N, Dewa KI, Okada M, Yanagawa Y, Taya SI, Hoshino M
Genes to cells : devoted to molecular & cellular mechanisms 2019 Jan;24(1):41-59
Genes to cells : devoted to molecular & cellular mechanisms 2019 Jan;24(1):41-59
JAK-STAT inhibition impairs K-RAS-driven lung adenocarcinoma progression.
Mohrherr J, Haber M, Breitenecker K, Aigner P, Moritsch S, Voronin V, Eferl R, Moriggl R, Stoiber D, Győrffy B, Brcic L, László V, Döme B, Moldvay J, Dezső K, Bilban M, Popper H, Moll HP, Casanova E
International journal of cancer 2019 Dec 15;145(12):3376-3388
International journal of cancer 2019 Dec 15;145(12):3376-3388
Anti-commensal IgG Drives Intestinal Inflammation and Type 17 Immunity in Ulcerative Colitis.
Castro-Dopico T, Dennison TW, Ferdinand JR, Mathews RJ, Fleming A, Clift D, Stewart BJ, Jing C, Strongili K, Labzin LI, Monk EJM, Saeb-Parsy K, Bryant CE, Clare S, Parkes M, Clatworthy MR
Immunity 2019 Apr 16;50(4):1099-1114.e10
Immunity 2019 Apr 16;50(4):1099-1114.e10
C-Kit Cardiac Progenitor Cell Based Cell Sheet Improves Vascularization and Attenuates Cardiac Remodeling following Myocardial Infarction in Rats.
Dergilev K, Tsokolaeva Z, Makarevich P, Beloglazova I, Zubkova E, Boldyreva M, Ratner E, Dyikanov D, Menshikov M, Ovchinnikov A, Ageev F, Parfyonova Y
BioMed research international 2018;2018:3536854
BioMed research international 2018;2018:3536854
Factors Within the Endoneurial Microenvironment Act to Suppress Tumorigenesis of MPNST.
Stratton JA, Assinck P, Sinha S, Kumar R, Moulson A, Patrick N, Raharjo E, Chan JA, Midha R, Tetzlaff W, Biernaskie J
Frontiers in cellular neuroscience 2018;12:356
Frontiers in cellular neuroscience 2018;12:356
ARTS mediates apoptosis and regeneration of the intestinal stem cell niche.
Koren E, Yosefzon Y, Ankawa R, Soteriou D, Jacob A, Nevelsky A, Ben-Yosef R, Bar-Sela G, Fuchs Y
Nature communications 2018 Nov 2;9(1):4582
Nature communications 2018 Nov 2;9(1):4582
Selective pharmacological inhibition of DDR1 prevents experimentally-induced glomerulonephritis in prevention and therapeutic regime.
Moll S, Yasui Y, Abed A, Murata T, Shimada H, Maeda A, Fukushima N, Kanamori M, Uhles S, Badi L, Cagarelli T, Formentini I, Drawnel F, Georges G, Bergauer T, Gasser R, Bonfil RD, Fridman R, Richter H, Funk J, Moeller MJ, Chatziantoniou C, Prunotto M
Journal of translational medicine 2018 Jun 1;16(1):148
Journal of translational medicine 2018 Jun 1;16(1):148
Vitreous Cytokine Expression and a Murine Model Suggest a Key Role of Microglia in the Inflammatory Response to Retinal Detachment.
Kiang L, Ross BX, Yao J, Shanmugam S, Andrews CA, Hansen S, Besirli CG, Zacks DN, Abcouwer SF
Investigative ophthalmology & visual science 2018 Jul 2;59(8):3767-3778
Investigative ophthalmology & visual science 2018 Jul 2;59(8):3767-3778
Inhibition of histone deacetylase 1 ameliorates renal tubulointerstitial fibrosis via modulation of inflammation and extracellular matrix gene transcription in mice.
Nguyễn-Thanh T, Kim D, Lee S, Kim W, Park SK, Kang KP
International journal of molecular medicine 2018 Jan;41(1):95-106
International journal of molecular medicine 2018 Jan;41(1):95-106
Dual-targeting Wnt and uPA receptors using peptide conjugated ultra-small nanoparticle drug carriers inhibited cancer stem-cell phenotype in chemo-resistant breast cancer.
Miller-Kleinhenz J, Guo X, Qian W, Zhou H, Bozeman EN, Zhu L, Ji X, Wang YA, Styblo T, O'Regan R, Mao H, Yang L
Biomaterials 2018 Jan;152:47-62
Biomaterials 2018 Jan;152:47-62
Defining Lineage Potential and Fate Behavior of Precursors during Pancreas Development.
Sznurkowska MK, Hannezo E, Azzarelli R, Rulands S, Nestorowa S, Hindley CJ, Nichols J, Göttgens B, Huch M, Philpott A, Simons BD
Developmental cell 2018 Aug 6;46(3):360-375.e5
Developmental cell 2018 Aug 6;46(3):360-375.e5
The Ror1 receptor tyrosine kinase plays a critical role in regulating satellite cell proliferation during regeneration of injured muscle.
Kamizaki K, Doi R, Hayashi M, Saji T, Kanagawa M, Toda T, Fukada SI, Ho HH, Greenberg ME, Endo M, Minami Y
The Journal of biological chemistry 2017 Sep 22;292(38):15939-15951
The Journal of biological chemistry 2017 Sep 22;292(38):15939-15951
Histone variant H2A.J accumulates in senescent cells and promotes inflammatory gene expression.
Contrepois K, Coudereau C, Benayoun BA, Schuler N, Roux PF, Bischof O, Courbeyrette R, Carvalho C, Thuret JY, Ma Z, Derbois C, Nevers MC, Volland H, Redon CE, Bonner WM, Deleuze JF, Wiel C, Bernard D, Snyder MP, Rübe CE, Olaso R, Fenaille F, Mann C
Nature communications 2017 May 10;8:14995
Nature communications 2017 May 10;8:14995
IL-4 as a Repurposed Biological Drug for Myocardial Infarction through Augmentation of Reparative Cardiac Macrophages: Proof-of-Concept Data in Mice.
Shintani Y, Ito T, Fields L, Shiraishi M, Ichihara Y, Sato N, Podaru M, Kainuma S, Tanaka H, Suzuki K
Scientific reports 2017 Jul 31;7(1):6877
Scientific reports 2017 Jul 31;7(1):6877
The Lymphatic Endothelial mCLCA1 Antibody Induces Proliferation and Growth of Lymph Node Lymphatic Sinuses.
Jordan-Williams KL, Ramanujam N, Farr AG, Ruddell A
PloS one 2016;11(5):e0156079
PloS one 2016;11(5):e0156079
Host-Protozoan Interactions Protect from Mucosal Infections through Activation of the Inflammasome.
Chudnovskiy A, Mortha A, Kana V, Kennard A, Ramirez JD, Rahman A, Remark R, Mogno I, Ng R, Gnjatic S, Amir ED, Solovyov A, Greenbaum B, Clemente J, Faith J, Belkaid Y, Grigg ME, Merad M
Cell 2016 Oct 6;167(2):444-456.e14
Cell 2016 Oct 6;167(2):444-456.e14
Whole Chromosome Instability induces senescence and promotes SASP.
Andriani GA, Almeida VP, Faggioli F, Mauro M, Tsai WL, Santambrogio L, Maslov A, Gadina M, Campisi J, Vijg J, Montagna C
Scientific reports 2016 Oct 12;6:35218
Scientific reports 2016 Oct 12;6:35218
Hyaluronan and TLR4 promote surfactant-protein-C-positive alveolar progenitor cell renewal and prevent severe pulmonary fibrosis in mice.
Liang J, Zhang Y, Xie T, Liu N, Chen H, Geng Y, Kurkciyan A, Mena JM, Stripp BR, Jiang D, Noble PW
Nature medicine 2016 Nov;22(11):1285-1293
Nature medicine 2016 Nov;22(11):1285-1293
The cell proliferation antigen Ki-67 organises heterochromatin.
Sobecki M, Mrouj K, Camasses A, Parisis N, Nicolas E, Llères D, Gerbe F, Prieto S, Krasinska L, David A, Eguren M, Birling MC, Urbach S, Hem S, Déjardin J, Malumbres M, Jay P, Dulic V, Lafontaine DLj, Feil R, Fisher D
eLife 2016 Mar 7;5:e13722
eLife 2016 Mar 7;5:e13722
Image-based detection and targeting of therapy resistance in pancreatic adenocarcinoma.
Fox RG, Lytle NK, Jaquish DV, Park FD, Ito T, Bajaj J, Koechlein CS, Zimdahl B, Yano M, Kopp J, Kritzik M, Sicklick J, Sander M, Grandgenett PM, Hollingsworth MA, Shibata S, Pizzo D, Valasek M, Sasik R, Scadeng M, Okano H, Kim Y, MacLeod AR, Lowy AM, Reya T
Nature 2016 Jun 16;534(7607):407-411
Nature 2016 Jun 16;534(7607):407-411
RANKL/RANK control Brca1 mutation- .
Sigl V, Owusu-Boaitey K, Joshi PA, Kavirayani A, Wirnsberger G, Novatchkova M, Kozieradzki I, Schramek D, Edokobi N, Hersl J, Sampson A, Odai-Afotey A, Lazaro C, Gonzalez-Suarez E, Pujana MA, Cimba F, Heyn H, Vidal E, Cruickshank J, Berman H, Sarao R, Ticevic M, Uribesalgo I, Tortola L, Rao S, Tan Y, Pfeiler G, Lee EY, Bago-Horvath Z, Kenner L, Popper H, Singer C, Khokha R, Jones LP, Penninger JM
Cell research 2016 Jul;26(7):761-74
Cell research 2016 Jul;26(7):761-74
Heterogeneous fibroblasts underlie age-dependent tertiary lymphoid tissues in the kidney.
Sato Y, Mii A, Hamazaki Y, Fujita H, Nakata H, Masuda K, Nishiyama S, Shibuya S, Haga H, Ogawa O, Shimizu A, Narumiya S, Kaisho T, Arita M, Yanagisawa M, Miyasaka M, Sharma K, Minato N, Kawamoto H, Yanagita M
JCI insight 2016 Jul 21;1(11):e87680
JCI insight 2016 Jul 21;1(11):e87680
Detection of Cell Proliferation Markers by Immunofluorescence Staining and Microscopy Imaging in Paraffin-Embedded Tissue Sections.
Eminaga S, Teekakirikul P, Seidman CE, Seidman JG
Current protocols in molecular biology 2016 Jul 1;115:14.25.1-14.25.14
Current protocols in molecular biology 2016 Jul 1;115:14.25.1-14.25.14
Lineage-specific enhancers activate self-renewal genes in macrophages and embryonic stem cells.
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Science (New York, N.Y.) 2016 Feb 12;351(6274):aad5510
Science (New York, N.Y.) 2016 Feb 12;351(6274):aad5510
Suppression of ischemia in arterial occlusive disease by JNK-promoted native collateral artery development.
Ramo K, Sugamura K, Craige S, Keaney JF, Davis RJ
eLife 2016 Aug 9;5
eLife 2016 Aug 9;5
Epithelial-to-mesenchymal transition induces cell cycle arrest and parenchymal damage in renal fibrosis.
Lovisa S, LeBleu VS, Tampe B, Sugimoto H, Vadnagara K, Carstens JL, Wu CC, Hagos Y, Burckhardt BC, Pentcheva-Hoang T, Nischal H, Allison JP, Zeisberg M, Kalluri R
Nature medicine 2015 Sep;21(9):998-1009
Nature medicine 2015 Sep;21(9):998-1009
Low levels of endogenous or X-ray-induced DNA double-strand breaks activate apoptosis in adult neural stem cells.
Barazzuol L, Rickett N, Ju L, Jeggo PA
Journal of cell science 2015 Oct 1;128(19):3597-606
Journal of cell science 2015 Oct 1;128(19):3597-606
NF-κB-induced microRNA-31 promotes epidermal hyperplasia by repressing protein phosphatase 6 in psoriasis.
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Nature communications 2015 Jul 3;6:7652
Nature communications 2015 Jul 3;6:7652
The adhesion G protein-coupled receptor GPR56 is a cell-autonomous regulator of oligodendrocyte development.
Giera S, Deng Y, Luo R, Ackerman SD, Mogha A, Monk KR, Ying Y, Jeong SJ, Makinodan M, Bialas AR, Chang BS, Stevens B, Corfas G, Piao X
Nature communications 2015 Jan 21;6:6121
Nature communications 2015 Jan 21;6:6121
Alveolar progenitor and stem cells in lung development, renewal and cancer.
Desai TJ, Brownfield DG, Krasnow MA
Nature 2014 Mar 13;507(7491):190-4
Nature 2014 Mar 13;507(7491):190-4
Myeloid cells expressing VEGF and arginase-1 following uptake of damaged retinal pigment epithelium suggests potential mechanism that drives the onset of choroidal angiogenesis in mice.
Liu J, Copland DA, Horie S, Wu WK, Chen M, Xu Y, Paul Morgan B, Mack M, Xu H, Nicholson LB, Dick AD
PloS one 2013;8(8):e72935
PloS one 2013;8(8):e72935
Small intestine inflammation in Roquin-mutant and Roquin-deficient mice.
Schaefer JS, Montufar-Solis D, Nakra N, Vigneswaran N, Klein JR
PloS one 2013;8(2):e56436
PloS one 2013;8(2):e56436
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Nature 2013 Nov 14;503(7475):218-23
Nature 2013 Nov 14;503(7475):218-23
IL-1R signaling in dendritic cells replaces pattern-recognition receptors in promoting CD8⁺ T cell responses to influenza A virus.
Pang IK, Ichinohe T, Iwasaki A
Nature immunology 2013 Mar;14(3):246-53
Nature immunology 2013 Mar;14(3):246-53
Primate B-1 cells generate antigen-specific B cell responses to T cell-independent type 2 antigens.
Yammani RD, Haas KM
Journal of immunology (Baltimore, Md. : 1950) 2013 Apr 1;190(7):3100-8
Journal of immunology (Baltimore, Md. : 1950) 2013 Apr 1;190(7):3100-8
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- Immunocytochemistry on fixed and permeabilized C2C12 cells using 0.5 µg/mL Rat IgG2a K Isotype Control (left) or 0.5 µg/mL Anti-Mouse/Rat Ki-67 eFluor® 615 (right). Nuclei are stained with DAPI (blue). Co-expression of DAPI and Ki-67 appears pink.
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- Figure 9--figure supplement 1. Knockdown of Ki-67 in H2B FRET cell line. Western blot analysis of the indicated proteins in asynchronously growing HeLa H2B FRET cells transiently transfected with control siRNA (Ctrl) or Ki-67 RNAi for 72 hr. LC, loading controls of the high (h) and low (lo) MW parts of the SDS-PAGE gel. DOI: http://dx.doi.org/
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- Figure 4 Microglia/monocyte accumulation precedes appearance of non-myeloid cell proliferation. Iba1 and Ki67 dual-staining on RPE/choroid whole-mounts during the time course of CNV development. ( A ) Six hours post laser induction, neither macrophages nor cell proliferation are detected at lesions. ( B ) On day 1, accumulating Iba1 + cells are Ki67-negative and no proliferating cells are observed. By day 2 (C) and 4 (D), majority of macrophages are not co-localised with Ki67 immuno-reactivity, while abundant Iba1 - Ki67 + cells are seen at lesions. Between day 7 (E) and 14 (F), both Iba1 + and Ki67 + cell numbers subside. Images are representative of at least 12 lesions for each time point. Smaller images display separate stains for Iba1 and Ki67, respectively; bigger images are two channels merged.
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- Fig. 3. Similar levels of endogenous DSB formation in differentiated neuronal tissues and adult stem cell compartments. (A) Quantification of 53BP1 foci per cell in different tissues of untreated adult mice of the genotypes indicated and WT mice exposed to 50 or 100 mGy X-rays. (B) Representative images of untreated Atm - / - / Lig4 Y288C cerebellum stained for 53BP1 (green) and DAPI (blue). The lower image represents the boxed area shown in the upper image. Scale bars: 100 um (top), 20 um (bottom). (C,D) 53BP1 foci per cell in the adult SVZ and SGZ regions comparing proliferating (Ki67 + ) and non-proliferating (Ki67 - ) cells. Note that 53BP1 foci were not scored in the Atm - / - / Lig4 Y288C SGZ due to the low number of Ki67 + cells. (E) Representative images of the adult SVZ of untreated WT, Atm -/- and Lig4 Y288C mice, and WT SVZ 1.5 h after 100 mGy X-rays stained for Ki67 (red), 53BP1 (green) and DAPI (blue). Scale bars: 150 um (left), 20 um (right). The position of the lateral ventricle (LV) is shown for orientation. Yellow arrowheads show 53BP1 foci. Data represent mean+-s.e.m. (WT, n =4; Atm - / - , n =3; Lig4 Y288C , n =5; Atm - / - / Lig4 Y288C , n =3; WT 50 mGy 1.5 h, n =2; WT 100 mGy 1.5 h, n =3). ns, not significant; * P
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- Fig. 5. Endogenous and ionising radiation-induced apoptosis is sensitively activated in the adult SVZ. (A) TUNEL + cells per section in untreated WT, Atm - / - , Lig4 Y288C , Atm - / - / Lig4 Y288C adult mice, and following irradiation with 50, 100 or 500 mGy X-rays. The region scored in each section encompassed the entire area of the tissue under analysis. CTX, Isocortex ; CA, Ammon's Horn; CUL, culmen; CENT, central lobule. (B) Representative images of a portion of the ventral SVZ stained for Ki67 (red), TUNEL (green) and DAPI (blue). Scale bar: 25 um. The upper panel shows untreated mice and the lower panel figures were from mice killed at 6 h following irradiation with the indicated doses. (C) Dose-response and linear fitting of radiation-induced apoptosis in WT adult SVZ. (D) Timecourse of radiation-induced apoptosis in WT and Lig4 Y288C adult SVZ exposed to 100 mGy X-rays. Data represent mean+-s.e.m. (WT 50 mGy 6 h, n =3; WT 100 mGy 6 h, n =5; WT 500 mGy 6 h, n =1; WT 100 mGy 15 h, n =2; Lig4 Y288C 100 mGy 1.5 h, n =2; Lig4 Y288C 100 mGy 6 h, n =2; Lig4 Y288C 100 mGy 15 h, n =2). ** P
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- Fig. 6. Developmentally regulated ATM-independent apoptosis coupled with ATM-dependent DSB-induced apoptosis. (A) TUNEL + cells per mm 2 in the embryonal neocortex at E14.5 and E17.5. (B) TUNEL + cells per section in the postnatal (P5 and P15) and adult (2-3 months) SVZ and isocortex. Atm - / - / Lig4 Y288C marked P15 represents P20. To allow direct comparison, both the number of TUNEL + cells per section and per mm 2 area were scored in the SVZ region demonstrating a similar profile ( supplementary material Fig. S2B ). (C) Representative images of the embryonal neocortex and postnatal SVZ of untreated Lig4 Y288C mice stained for Ki67 (red), TUNEL (green) and DAPI (blue). Scale bars: 100 um (left), 25 um (right). (D) Quantification of Ki67 + cells per unit area (0.07 mm 2 ) in the SVZ of P5, P15 and 2-3-month-old WT mice relative to the number of Ki67 + cells in the same area in 2-3-month-old WT mice. (E) Representative images of the lateral ventricle (LV) (top) of P5, P15 and 2-3-month-old WT mice stained for DAPI (blue) and a portion of the SVZ region (bottom) stained for Ki67 (red) and DAPI (blue). CP, cortical plate; IZ, intermediate zone; VZ, ventricular zone. Data represent mean+-s.e.m. ( n as described in Fig. 4 ). * P
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- Figure 11--figure supplement 1. Overexpression of Ki-67 induces ectopic heterochromatin. Overexpression of full length Ki-67 N-terminal fusion with eGFP (GFP, left panels) in U2OS cells induces ectopic heterochromatin, as visualised by DAPI staining (DNA, right panels) or immunofluorescence of HP1alpha (centre, middle), whereas cells with lower Ki-67 expression levels have normal chromatin. Immunofluorescence of Ki-67 (top, middle) shows colocalisation of fusion protein with overall Ki-67 pattern. Immunofluorescence of phospho-histone H3S10 shows expected staining of mitotic metaphase (bottom, middle panel) but no staining in a cell with ectopic heterochromatin (top right cell, same panel) due to Ki-67 overexpression (GFP, bottom left panel). Bar, 10 um DOI: http://dx.doi.org/
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- Figure 11. Overexpression of Ki-67 induces ectopic heterochromatin. ( A ) Overexpression of full length Ki-67 N-terminal fusion with eGFP in U2OS cells induces ectopic heterochromatin, as visualised by DAPI staining (middle) and immunofluorescence of H3K9Me3 (left) or HP1beta (right). Eight representative cells that have different levels of Ki-67 expression, as determined by eGFP fluorescence intensity, are shown. Bar, 10 um. ( B ) U2OS cells expressing high levels of exogenous eGFP-Ki-67 and showing ectopic chromatin condensation are negative for cyclin A staining by immunofluorescence. ( C ) Left: Immunofluorescence analysis of the localisation of endogenous human and ectopically expressed Xenopus Ki-67 in U2OS cells, showing colocalisation in metaphase at the perichromosomal region. Right: DNA condensation caused by high overexpression of Xenopus Ki-67 in U2OS cells. Bars, 10 um. DOI: http://dx.doi.org/ Figure 11--figure supplement 1. Overexpression of Ki-67 induces ectopic heterochromatin. Overexpression of full length Ki-67 N-terminal fusion with eGFP (GFP, left panels) in U2OS cells induces ectopic heterochromatin, as visualised by DAPI staining (DNA, right panels) or immunofluorescence of HP1alpha (centre, middle), whereas cells with lower Ki-67 expression levels have normal chromatin. Immunofluorescence of Ki-67 (top, middle) shows colocalisation of fusion protein with overall Ki-67 pattern. Immunofluorescence of phospho-histone H3S10 shows expected staining of mitoti
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- Figure 3--figure supplement 8. Generation of Ki-67-mutant NIH-3T3 cells. ( A ) Top and left, schematic representation of TALEN-mediated generation of NIH-3T3 biallelic Ki-67 mutant cells. Top right, immunofluorescence of Ki-67 and eGFP staining in NIH 3T3 cells transfected with two plasmids encoding TALEN pair and plasmid pEGFP. White arrows show Ki-67-negative pEGFP cotransfected cells. Scale bar 25 um. ( B ) PCR analysis of Mki67 initiator ATG surrounding sequence in genomic DNA prepared from three WT clones and nine Ki-67 immunofluorescence-negative clones selected for further analysis. ( C ) sequencing of Mki67 initiator ATG area from selected clones (14, 19, 21, 33, 38). ( D ), PCR analysis targeted to the initiator ATG in Mki67 gene of genomic DNA purified from NIH 3T3 WT clone W4 and Ki-67 KO clones 14, 19, 21, 33, 38. DOI: http://dx.doi.org/
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- Figure 7--figure supplement 1. Ki-67 is a nucleolar protein localizing in the cortical side of the GC. ( A ) Localisation of Ki-67 protein by immunofluorescence in HeLa and U2OS cells. Fibrillarin (DFC) or Pes1 (GC) were used as nucleolar markers. Images were captured in confocal mode with a spinning-disk microscope. Objective 100 x. Scale bar: 5 mum. ( B ) Line scans showing the distribution of fluorescence signals within specific nucleoli (see dotted lines in panel A). DOI: http://dx.doi.org/
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- Figure 7--figure supplement 2. Ki-67 follows GC components upon drug-induced nucleolar disruption. Actinomycin D or the kinase inhibitors DRB and Roscovitine were added to cells during 90 min and Ki-67 was located within these cells by immunofluorescence. Fibrillarin ( A ) and PES1 ( B ) proteins were also localised by immunofluorescence. Objective 100 x. Scale bar: 5 mum. DOI: http://dx.doi.org/
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- Figure 7. Ki-67 localises PES1 to mitotic chromosomes. ( A ) Analysis of the interphase localisation of PES1 and Ki-67 proteins by immunofluorescence in HeLa cells 72 hr after transfection with control siRNA (scramble; Scr) or Ki-67 RNAi. Right, line scans showing the distribution of fluorescence signals within indicated nucleoli (dashed line). Images were captured in confocal mode with a spinning-disk microscope. Bar, 5 mum. ( B ) Analysis of the mitotic localisation of PES1 and Ki-67 proteins by immunofluorescence in HeLa cells 72 hr after transfection with control siRNA (scramble; Scr) or Ki-67 RNAi. Bar, 5 mum. DOI: http://dx.doi.org/ Figure 7--figure supplement 1. Ki-67 is a nucleolar protein localizing in the cortical side of the GC. ( A ) Localisation of Ki-67 protein by immunofluorescence in HeLa and U2OS cells. Fibrillarin (DFC) or Pes1 (GC) were used as nucleolar markers. Images were captured in confocal mode with a spinning-disk microscope. Objective 100 x. Scale bar: 5 mum. ( B ) Line scans showing the distribution of fluorescence signals within specific nucleoli (see dotted lines in panel A). DOI: http://dx.doi.org/ Figure 7--figure supplement 2. Ki-67 follows GC components upon drug-induced nucleolar disruption. Actinomycin D or the kinase inhibitors DRB and Roscovitine were added to cells during 90 min and Ki-67 was located within these cells by immunofluorescence. Fibrillarin ( A ) and PES1 ( B ) proteins were also localised by immunofluorescence. Objective 10
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- Figure 1 Ablation of Rank in mammary epithelial cells markedly decreases tumor formation in Brca1/p53 mutant female mice. (A) Representative whole mount images (haematoxylin staining, magnification 52x) and paraffin sections (H&E staining, scale bar, 200 mum) of mammary glands from 4-month-old K5Cre;Brca1;p53 double- and K5Cre;Rank;Brca1;p53 triple-knockout littermate mice. (B) Representative images (H&E staining, scale bar, 100 mum) and (C) quantification of low-grade MINs, high-grade MINs and adenocarcinomas in mammary glands from 4-month-old K5Cre;Brca1;p53 and K5Cre;Rank;Brca1;p53 mutant littermates. Data are shown as average number of foci/section of 1 inguinal and 2 thoracic mammary glands per mouse +/- SEM. n >= 4 mice/group. * P < 0.05, *** P < 0.001 (2-way ANOVA). (D) Representative images of Ki67 and gammaH2AX immunostaining of mammary glands from 4-month-old K5Cre;Brca1;p53 double- and K5Cre;Rank;Brca1;p53 triple-knockout littermates. Scale bar, 100 mum.
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- Figure 10 H2A.J accumulates in the aging human epidermis. ( a ) H2A.J and Ki-67 co-localization in sections of human skin of the indicated ages by immunofluorescent staining. H2A.J showed mutually exclusive staining with the Ki-67 proliferation marker. ( b ) H2A.J and 53BP1 foci increase in aging human epidermis. Arrows indicate positively-stained nuclei. A quantification of positive cells for three biological replicates is shown below the immunofluorescence images, and the one-sided Mann-Whitney U -test was used to determine the statistical significance (* P
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- Fig. 4 Deletion of Sept4 /ARTS leads to enhanced activity of the Wnt/beta-catenin pathway. a Intestinal tissue wholemount stained for Ki67, viewed from the base of the crypt, shows enhanced crypt base proliferation in Sept4 /ARTS -/- ( S /A -/- ) mice. Inset shows isolated and stained crypts, which display greater proliferation in the S /A -/- crypt base (dotted white line). b Quantification of percentage of Ki67 + proliferating cells per crypt. c WT and S /A -/- intestinal sections stained for PCNA. d WT and Sept4 /ARTS -/- intestinal organoids stained against Ki67. e S /A -/- organoids often display cystic-like morphology that continue to expand up to 10 days in culture. Inset shows S /A -/- cystic organoid with characteristic organoid ""buds"". f Real-time (RT)-PCR analysis shows increased relative mRNA transcripts of Wnt3, Tcf-1, c-Myc and Cyclin D1 in control and S /A -/- organoids. g WT and S /A -/- intestinal organoids stained against non-phosphorylated beta-catenin. h Zoom-in of intestinal organoids shows nuclear beta-catenin + cells (white arrowheads) within the S /A -/- organoid crypt. i Quantifications for number of nuclear beta-catenin + cells per organoid crypt. j Small intestinal crypts in vivo stained for beta-catenin show high nuclear localization (white arrowhead) in the Sept4 /ARTS -/- crypt base. k RT-PCR analysis indicates increased relative mRNA levels of Wnt target genes c-Myc , Tcf-1 , Sox9 , Axin2 and
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- Fig. 8 ARTS mediates its functions via interaction with XIAP in the intestinal crypt. a Confocal microscopy image of mouse small intestinal crypt base shows co-localization of ARTS and XIAP within the same cell [ n = 4 mice]. b Western blot of XIAP in isolated wild-type (WT) and Sept4 /ARTS -/- ( S /A -/- ) crypts. Signal intensity is normalized to GADPH. c Super-resolution stimulated emission depletion (STED) microscopy shows co-localization of ARTS and XIAP in normal and apoptotic human colonic crypt base cells. d Pearson's coefficient values demonstrate higher co-localization of ARTS and XIAP in both mouse and human apoptotic crypt cells [ n = 3 human colons and n = 4 mice. Error bars represent s.e.m.]. e Co-immunoprecipitation (co-IP) of ARTS and XIAP in isolated XIAP DeltaRING small intestinal crypts. XIAP DeltaRING only interacts mildly with ARTS in the absence of apoptotic stimulation. After staurosporine (STS) treatment, efficient binding between ARTS and XIAP DeltaRING is detected. f Western blot and signal intensity of active caspase-3 (CP3) in STS-treated crypts show that deletion of XIAP or RING domain increases cleaved CP3 levels. g Organoids derived from XIAP -/- , XIAP DeltaRING and S;X -/- crypts display hindered growth and development after 11 days post seeding. h XIAP -/- , XIAP DeltaRING and S;X -/- organoids stained for Ki67. i , j Fold difference in i organoid formation capacity and j number of Ki67 + cells
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- Figure 5 EMT program G2 cell cycle arrest. ( a ) Percent E-cadherin + pH3 + cells in kidneys from the indicated experimental groups. WT contralat., n = 4; Twist cKO contralat., n = 5; WT UUO, n = 4; Twist cKO UUO, n = 5. WT contralat., n = 3; Snail cKO contralat., n = 3; WT UUO, n = 4; Snail cKO UUO, n = 3. ( b ) Representative images (5 visual fields for each tissue analyzed) of immunolabeling for YFP, AQP1 and pH3 and percentage of alphaSMA + cells out of the YFP + pH3 + TECs (contralat., n = 6; UUO n = 3). Scale bar, 100 ~m. ( c ) Relative Twist1 expression in indicated cells. ( d ) Representative images of brightfield imaging in indicated cells. ( e ) Representative images (3 visual fields for each tissue analyzed) of immunolabeling for beta-catenin and percent nuclear accumulation. Scale bar, 50 ~m. ( f,g ) Representative images (3 visual fields for each tissue analyzed) of immunolabeling for Ki67 and pH3 ( f ) and percent cells in G2 ( g ). Scale bar, 50 ~m. ( h ) Representative images of brightfield imaging in indicated cells. ( i ) Representative images (3 visual fields for each tissue analyzed) of immunolabeling for beta-catenin and percent nuclear accumulation. Scale bar, 50 ~m. ( j ) Representative images (3 visual fields for each tissue analyzed) of immunolabeling for Ki67 and pH3 ( f) and percent cells in G2 ( g ). Scale bar, 50 ~m. Vehicle (vh) and TGF-beta1 treatment were conducted for 24 hours, followed by vehicle or TGF-beta1 withdrawal for 24 hours, n = 3. D
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- Figure 6 p21 controls EMT program G2 cell cycle arrest. ( a ) Relative expression of Twist1 Snai1 and Cdkn1a (p21) in MCT cells transfected with empty vector, Twist or Snail overexpression vectors, 24 hours post transfection, n = 3. ( b ) Representative images (3 visual fields for each tissue analyzed) of vehicle or MCT cells transfected with empty vector, Twist or Snail overexpression vectors, 24 hours post transfection, immunolabeled for Ki67 and pH3 and respective quantification of the percentage of cells in G2 phase, n = 3. Scale bar: 50 ~m. ( c ) Phase contrast light microscopy and immunolabeling for Ki67 and pH3 of MCT shScrbl and MCT shTwist cells transfected with empty or Twist overexpression (OE Twist) plasmids and treated with vehicle or TGF-beta1. ( d ) Quantification of the percentage of empty or Twist OE transfected MCT shScrbl and MCT shTwist cells in G2 phase of the cell cycle comparing cells treated with vehicle or TGF-beta1, n = 3. ( e ) Relative expression of Cdkn1a (p21). ( f ) Representative images (3 visual fields for each tissue analyzed) of immunolabeling for Ki67 and pH3 of control or p21 siRNA-transfected MCT cells and percent of cells in G2 phase. Scale bar, 50 ~m. Data is represented as mean +- SEM. Hoechst: nucleus. One-way ANOVA with Tukey post-hoc analysis. b and e , unpaired one-tailed t-test. * P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.0001.
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- Figure 7 Total and cardiomyocyte proliferation in the left ventricle wall 14 days after myocardial infarction and delivery of CPC-based cell sheets. (a) Representative images of cardiomyocyte proliferation in control group and after cell sheet treatment. Two weeks after epicardial delivery of the CPC sheet, the heart sections were costained with the antibodies against the cell-proliferation-associated antigen-Ki67 (red fluorescence) and cardiomyocyte marker, Troponin I (green fluorescence). Combined red and green fluorescence and DAPI-stained nuclei (blue) are shown in merged images. Arrows indicate costained proliferated cardiomyocytes. (b) Bar graphs show quantitative data of the number of total proliferating cells in border or infarct zones and cardiomyocyte proliferation. Data is presented as mean+-SD. * p
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- FIGURE 1 The development of a malignant peripheral nerve sheath tumors (MPNST) model. (A) Representative immunocytochemical images of induced tumor Schwann cells (iSCs) either deprived of growth factors (-NRG) or treated with neuregulin and forskolin (+NRG, 50 ng/ml neuregulin, 5 mM Forskolin). Note the similar numbers of Nestin+ (green, NES), Hoechst+ (blue) iSCs that express Ki67 (red) across both conditions. (B) Quantification of percentage of Ki67 + cells revealed no difference between groups (Student's t -test, n = 4, P = 0.3). (C) Note the presence of sphere formation when iSCs are grown in growth factor deprived conditions. (D) Karyotyping analysis indicates multiple chromosomal abnormalities, including polyploidy and monosomy cells. (E) Intradermal iSC injections into back skin resulted in the development of tumors within 16 weeks. (F-M) Representative histological images of H&E (F,G,J,K) , s100 (H,L) and Desmin (I,M) from a biopsied sample of human MPNSTs (F-I) and from a sample from iSCs (J-M) . Note the presence of necrosis, mitosis and spindle-shaped cells in both samples (F,G and J,K) . Also note the presence of S100 (H,L) immunoreactivity, as well as the lack of Desmin immunoreactivity (I,M) in both samples. Scale bars = A (50 mum), C (200 mum), G-I (20 mum).
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- FIGURE 2 The endoneurial microenvironment suppresses tumorigenesis of MPNST. (A) Intraneural iSC injections into the sciatic nerve resulted in the development of tumors within 2 months. (B) Representative immunohistochemical images of the endoneurial and epineurial compartments. Note the presence of widespread Ki67+ (red), Hoechst+ (blue) proliferative iSC (green) in the epineurial compartment compared to the endoneurial compartment. See inset (^^) for high-resolution example of localization (arrowheads). (C) iSCs injected into the dorsal column of the spinal cord formed tumors within 2 months. (D) Representative immunohistochemical images of the spinal cord. Note the presence of widespread Ki67+ (red), Hoechst+ (blue) proliferative iSC (green) in the spinal cord. See inset ( ** ) for high-resolution example of localization (arrowheads). (E) Quantification of the percentage of Ki67+ iSCs in the endoneurial compartment, epineurial compartment and spinal cord demonstrated a significant decrease in endoneurial compartment compared to other regions (One-way ANOVA, Tukey's posthoc test, n = 6-8, * p < 0.01, ** p < 0.001). (F) Representative immunocytochemical images of iSCs treated with conditioned media (CM). Note there are less Ki67+ (red) Hoechst+ (blue) iSCs in the cultures treated with endoneurial CM compared to epineurial, spinal cord or base media. (G) Quantification of the percentage of Ki67+ iSCs demonstrated a significant decrease in the percenta
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- FIGURE 4 The identification of suppressive factors in the endoneurial compartment. (A) Fold change in candidate proteins (10-60 kDa) enriched in the endoneurium compared to spinal cord tissue. Ciliary neurotrophic factor (CNTF, red box), a growth factor known for its role in promoting differentiation of Schwann cells, was found at levels 5.5-fold higher in endoneurium tissue compared to spinal cord tissue. (B) Representative immunohistochemical images of uninjured mouse and human sciatic nerves demonstrating the presence of CNTF (red) in the cytoplasm of Schwann cells (blue). Note the presence of CNTF around the peri-nuclear area adjacent to nuclei (blue)--a cytoplasmic rich region of the myelinating Schwann cell. (C) Representative immunocytochemical images of iSCs (blue) treated with 0 ng/ml and 100 ng/ml CNTF. Note the reduction in Ki67+ (red) cells in CNTF treated conditions. (D) Quantification of the percentage of Ki67+ cells treated with 0, 10, or 100 ng/ml CNTF revealed a reduction in ki67+ cells at 100 ng/ml compared to 0 ng/ml (One-way ANOVA, Tukey's posthoc test, n = 3, ** p < 0.05). Scale bars = B (25 mum), C (50 mum).
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- Figure 3 Effect of RD on mouse retinal microglia and leukocyte populations. (A) Flow cytometry of microglia and leukocyte populations in the mouse retina at 1 day (n = 2/group) and 3 days (n = 4/ group) following experimental RD. Populations were defined by gating on the leukocyte common antigen CD45 and the myeloid lineage marker CD11b. Gating for inflammatory monocyte marker Ly6C and granulocyte/neutrophil marker Ly6G further defined populations of microglia and subpopulations of myeloid leukocytes. (B) Immunofluorescence of flat-mounted mouse retinas at 2 and 3 days after detachment showing the proliferation of microglia. Iba-1 + (green) cells with ramified morphology are microglia; Ki67 (red) is a proliferative cell marker.
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- Figure 1 Secretory cells proliferate after basal cell ablation a, Schematic representation of the ablation of CK5 -expressing basal cells of the trachea. Secretory, ciliated and basal stem cells are shown in pink, blue and grey colors respectively. b, Schematic of the timeline of i-dox or i-PBS administration and tissue harvest. c, Immunostaining for basal (p63 (green) and CK5 (cyan)) and secretory cells (SCGB1A1 (green)) in combination with Ki67 (red) on either i-PBS (upper panels) or i-Dox (lower panels) treated mice (n=6). White arrows, Ki67+ cells. d, Quantification of the percentage of p63+ and SCGB1A1+ cells per total DAPI+ cells in i-PBS or i-Dox n=3. e, Percentage of p63+Ki67+ and SCGB1A1+Ki67+ cells relative to total Ki67+ cells in i-PBS and i-Dox (n=3) treated CK5-DTA mice. i-Dox, inhaled doxycycline; i-PBS, inhaled PBS. Nuclei, DAPI (blue). *- p
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- Figure 3--figure supplement 3. Background Ki-67 levels in Ki-67 mutant mice. Immunofluorescence of Ki-67 and beta-catenin on sagittal sections of the mouse intestinal epithelium from Mki67 +/+ , heterozygous Mki67 +/21nt and homozygous Mki67 21nt/21nt mice. DOI: http://dx.doi.org/
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- Figure 1--figure supplement 4. Endothelial JNK is not required for proliferation, migration, and angiogenic responses in vitro. ( A ) JNK-deficient and control primary MLEC form similar tubular networks in matrigel. Images are representative of two experiments performed in triplicate with independent primary MLEC preparations. ( B ) Representative maximum projection confocal images of collagen embedded aortic ring explants. Similar numbers of VEGF-induced iB4 (green) positive microvessels sprouting from aortic rings from control and endothelial JNK-deficient mice were detected. Smooth muscle actin (SMA) immunofluorescence (red) labels supporting cells. DAPI (blue) labels nuclei. Quantitation of microvessel number demonstrated no significant differences between aortic rings from control and JNK-deficient mice (mean +- SEM; n = 8~21 rings per group). The data presented were obtained in one experiment and are representative of three experiments with similar results. Aortas from 2~3 mice per group were used in each experiment. ( C , D ) Representative confocal images and quantitation of the percentage of endothelial cells staining positive for the incorporation of Edu (green, C ) or the proliferation marker Ki-67 (green, D ) (mean +- SEM; n = 10 images per group). The data presented were obtained in one experiment and are representative of three experiments with similar results. alphaTubulin (red) labels cell bodies. DAPI (blue) labels nuclei. ( E ) Endothelial monolayers were ex
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- Figure 2 Proliferation of HPF is impaired upon BUB1 or SMC1A knockdown. ( a ) Growth curve of EV, BUB1 or SMC1-depleted and SEN cultures as assessed by number of PDs. ( b ) Quantification of percentage of MKI67 positively stained cells per cell line. ( c ) Representative IF images for the proliferation marker MKI67 (red) in EV, SEN, BUB1 and SMC1A-depleted cells. (*) Indicates significant differences ( p < 0.05) from EV cells tested by One-way ANOVA. Data are expressed as mean +- SD (n = 3).
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- 5 FIGURE Immunohistochemistry and immunofluorescence microscopy show loss of the bulk of tumor cells, which express OLIG2, but survival of the Cluster 22-like, YAP1-expressing, proliferative cells of the perivascular niche at 72 hr after IR. (a) Hematoxylin and eosin (H&E) staining and immunohistochemistry with antibodies to OLIG2, Ki67, and Nestin were performed on tumors without IR (no IR) and at 72 hr and at recurrence after IR. Tumor density and the percentage of OLIG2-expressing cells, which make up the bulk of tumor cells, are reduced significantly at 72 hr after IR, but return to baseline at recurrence, that is, levels similar to unirradiated tumor. The percentage of Ki67-expressing cells is also reduced at 72 hr after IR, and those that remain are located in the perivascular niche. Ki67-expressing cells also return to baseline at recurrence. Nestin-expressing cells, which are located within the perivascular niche, remain at similar levels between treatment conditions. (b) Immunofluorescence microscopy using antibodies to OLIG2 (white), Ki67 (green), and YAP1 (red) was performed on tumor without and at 72 hr after IR (two examples shown). The top row (Merge + DNA) shows an overlay of the staining by all three antibodies along with DAPI to indicate DNA (blue). At 72 hr after IR, the rare cells expressing Ki67 also express YAP1, which are both specific to Cluster 22, while the OLIG2 expressing cells, which make up the tumor bulk, are distinct from those expressing either
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- Histopathology and immunohistochemical analysis of liver tissue collected from different groups of animals. A, Histopathological observation of liver tissue of (a) Group I, Control; (b) Group II, Induced control; (c) Group III, NDEA+2-AAF+BNUA-3 (15 mg/kg b.w. ); (d) Group IV, NDEA+2AAF+BNUA-3 (30 mg/kg b.w. ); the fibroadenoma of the rat hepatocytes were identified with hematoxylin and eosin stain (400X); B(i). immunohistochemical evaluation of markers of proliferation exhibited expression of Ki67 (brown coloured) in hepatic tissues of rats (scale 50 mum); B(ii). graphical representation of Ki67 labelling index in hepatic tissues of all experimental rats where each value is represented as mean +- SEM; n = 6; Group I, Control; Group II, NDEA+2-AAF; Group III, NDEA+2-AAF + BNUA-3 (15 mg/kg b.w. ); Group IV, NDEA+2AAF+BNUA-3 (30 mg/kg b.w.). Comparisons: a = group II, III, IV with group I; Significant ** P < .01; *** P < .001. Ki67 labelling index is the percentage number of ki67 stained positive cells in animals of each experimental group. NDEA, N-Nitrosodiethylamine; 2-AAF, 2-acetylaminofluorene. , Group I; , Group II; , Group III; , Group IV
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- 5 Figure SU3/RFP-induced murine fibrosarcoma in tumor microenvironment. A, The subcutaneous xenograft tumor of a tumor-bearing mouse was green under the irradiation of fluorescent flashlight. B, C, Subcutaneous transplanted tumor was dissected and observed under white light and fluorescence, respectively. (D) Transplanted tumor tissue section was stained with H&E. E, Chromosome of green fluorescent cells, which were isolated from subcutaneous transplanted tumor, showed mouse characteristic of telocentric chromosome. F, Red peak represents normal mouse lymphocyte DNA content, DNA content of green peak represents green fluorescent cells, and the DNA content of green fluorescent tumor cells measured by flow cytometry is polyploid. G, Immunohistochemistry revealed that SU3/RFP expressed GFAP; (H, I) Green fluorescent cells were isolated from subcutaneous transplanted tumor, and cultured in vitro, which all expressed green fluorescence. J-L, Immunohistochemical staining revealed that the above green fluorescent cells were positive for FAP but negative for GFAP; immunofluorescence staining showed that the green fluorescent cells were strongly positive for Ki67. M, N, The green fluorescent cells in C57BL/6 mice and BALB/c mice were all tumorigenic, M and N respectively. Scale bar = 50 um
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- Characterization of molecularly defined layers during dorsal midbrain development. (a-e) Indirect immunohistochemical analyses on coronal sections of E13.5 wild-type rostro-dorsal midbrain. Midline is to the right. (f) Schematic representation of the molecularly defined layers. (a) Ki67-expressing cells are located at the VZ (arrows), whereas DCX, an early pan-neuronal marker, is observed at the IZ and MZ. (b) Sox9 is expressed at the VZ similar to Ki67 (arrowheads). (c) Nestin-positive fibers are observed in all layers, and subtle somal staining, merged with Ki67, is observed in the VZ (arrowheads). (d) pH3-positive cells are aligned at the ventricular surface (arrowheads), hereafter called the mitotic zone. (e) Brn3a-positive cells are mainly located in the IZ. (f) Layers defined by Ki67, DCX, pH3 and Brn3a are depicted as the VZ, which can be further divided into the mitotic zone and interphase zone, IZ and MZ. Scale bars: 100 um
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- The distribution of glutamatergic lineage cells defined by Pax6, Tbr2 and Neurog2. (a-d) Indirect immunohistochemical analyses on coronal sections of E13.5 wild-type rostro-dorsal midbrain. Midline is to the right. (a) Pax6 was weakly expressed only in Ki67-strong cells (arrowheads) in the mitotic zone. (b) Tbr2 was detected in the interphase zone and not co-expressed with Ki67 (arrows). (c) Neurog2-positive cells were also detected in the interphase zone, but did not co-express Ki67 (arrows). (d) The expression of Tbr2 was partially overlapped with Neurog2 expression (arrowheads). Scale bars: 100 um
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- The distribution of glutamatergic lineage cells defined by NeuroD and Brn3a. (a-d) Indirect immunohistochemical analyses on coronal sections of E13.5 wild-type rostro-dorsal midbrain. Midline is to the right. (a) NeuroD is expressed weakly in the IZ, and not co-expressed with Ki67 (arrows). (b) HuC/D was detected in the IZ and the MZ, and partially overlapped with NeuroD (arrowhead). (c) Some NeuroD-positive cells express Tbr2 (arrows). (d) Almost all NeuroD-positive cells express Brn3a in the IZ (arrowheads). Scale bars: 100 um
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- Figure 1. HOPX-positive oRG cells are preferentially distributed in prospective gyral regions in the developing ferret cerebral cortex. ( A, B ) Sections of the ferret cerebral cortex at P1 were subjected to immunohistochemistry for Pax6, Tbr2 and HOPX. ( B ) Higher magnification images of the OSVZ are shown. HOPX was expressed in a subset of oRG cells (Pax6-positive and Tbr2-negative). Arrowheads and open arrowheads indicate HOPX-positive and HOPX-negative oRG cells, respectively. Scale bars = 200 um ( A ), 50 mum ( B ). ( C, D ) Sagittal sections of the ferret brain at P1 were subjected to Hoechst 33342 staining plus immunohistochemistry for HOPX ( C ) and Pax6 ( D ). Asterisks indicate prospective sulcal regions. Five regions (red boxes, #1-#5) based on the positions of prospective gyri and sulci in the upper panels are magnified in the lower panels. Black broken lines indicate the border between the VZ and the ISVZ. A, anterior; P, posterior.Scale bars = 1 mm (upper), 200 um (lower). ( E ) Sections of the ferret cerebral cortex at P1 were subjected to immunohistochemistry for Pax6, HOPX and Tbr2. Magnified images of the OSVZ corresponding to regions #2 and #3 are shown. Arrowheads and open arrowheads indicate HOPX-positive and HOPX-negative oRG cells, respectively. Scale bar = 20 mum. ( F ) Ratios of cell numbers between prospective gyral and sulcal regions. Numbers of HOPX-positive oRG cells (HOPX+), HOPX-negative oRG cells (HOPX-), IP cells (Tbr2+), Pax6-positive cells
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- Figure 2. Shh signaling is highly activated in HOPX-positive oRG cells and prevents HOPX-positive oRG cells from differentiating. ( A ) Sagittal sections of the ferret brain at P6 were subjected to in situ hybridization for GLI1 and Hoechst 33342 staining. Asterisks indicate areas of prospective sulci. A higher-magnification image of the germinal zone is shown in the lower panel. Five regions (boxes, #1-#5) based on the positions of prospective gyri and sulci in the left panels were magnified and are shown in the right panels. GLI1 was more abundantly expressed in the OSVZ of prospective gyri (#1, 3, 5) than in that of prospective sulci (#2, 4). A, anterior; P, posterior.Scale bars = 2 mm (left, upper), 1 mm (left, lower), 200 mum (right). ( B ) Sections of the ferret cerebral cortex at P1 were subjected to in situ hybridization for GLI1 and immunohistochemistry for Pax6 and Tbr2. High-magnification images of the OSVZ are shown. GLI1 was mainly expressed in oRG cells (Pax6-positive and Tbr2-negative, arrowheads). Scale bar = 20 mum. ( C ) Sections of the ferret cerebral cortex at P1 were subjected to in situ hybridization for GLI1 and immunohistochemistry for Pax6, Tbr2 and HOPX. High-magnification images of the OSVZ are shown. GLI1 -positive oRG cells were mainly HOPX-positive (arrowheads), rather than HOPX-negative (open arrowhead). Scale bar = 20 mum. ( D ) Percentage of GLI1 -positive cells co-expressing Pax6 and/or Tbr2. n = 3 animals. ( E ) Percentage of GLI1 -positive
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- Figure 1 (A) Scheme of experiments. (B) Representative image (at 10X, transmitted light microscopy) of GBM143 xenograft line cultured for 3 weeks in vitro in media indicated; cells were collected and orthotopically implanted into cranially irradiated mice 24 hrs post-irradiation (IR). (C) Representative Immunofluorescence (IF) images (at 4X, tiling) for hLamin A+C staining from 0 Gy and 20 Gy-IR mice coronal sections to assess tumor growth and invasion. (D) Top: Representative images (at 20X) show IF staining at tumor; and the dot-plot of single cell count for hLamin A+C and Ki67 staining. Bottom: Representative images (at 20X) show IF staining at center of corpus callosum, and dot-plot of single cell count for hLamin A+C. IH, ipsilateral hemisphere; CH, contralateral hemisphere; IR, irradiation. Statistical significance is represented as * p < 0.05.
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- Figure 5. P2ry1-cre; Pet1-Flpe neurons project throughout the ventricles and their fibers are in close apposition to proliferating cells in the SVZ and RMS. ( A ) Flat mount of the lateral wall of the lateral ventricle of a P2ry1-cre; Pet1-Flpe; RC-Ai65 animal, where P2ry1-cre; Pet1-Flpe fibers are in grey. Scale bar = 100 um. ( B-E ) High magnification confocal images from regions of the lateral wall represented in red boxes in A. Scale bar ( B ) = 100 um. ( F ) 3D brain schematic showing the P2ry1-cre; Pet1-Flpe cell bodies (dark orange) in the caudal part of the DR (light orange) and fibers (dark orange) projecting through the ventricles (grey) and along the migrating neuroblasts of the rostral migratory stream (RMS, blue). ( G-H ) Coronal confocal images depicting P2ry1-cre; Pet1-Flpe fibers (orange) from P2ry1-cre; Pet1-Flpe; RC-Ai65 animals in the SVZ ( G ) and RMS ( H ). Proliferating cells labeled with Ki67 (grey) and migrating neuroblasts labeled with doublecortin (DCX, blue). Scale bar ( G, H ) = 50 um. Figure 5--figure supplement 1. The caudal dorsal raphe is the major Pet1 neuron source of supra-ependymal fibers. ( A ) Schematic depicting unilateral injection of AAVrg-hSyn-Cre into the lateral ventricle of either Pet1-Flpe; RC-FrePe (EGFP marked cells expressing both Cre and Flpe and mCherry expressing Pet1-Flpe subtractive population) or Pet1-Flpe; RC-Ai65 (TdTomato marked cells expressing both Cre and Flpe), leading to labeling of Pet1 cells in the caudal dorsal
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- Figure A1 ( A ) CD45/BrdU gating by flow cytometry. The percentage of CD45 + cells in the LGs was significantly higher in 1Y-old mice than in 8W-old mice ( p = 0.044; one-way ANOVA followed by Tukey's post hoc test; n = 9, 5, and 3 for 8W-, 1Y-, and 2Y-old mice, respectively). The percentage of CD45 + cells in the LGs was also significantly higher than that in the MGs, irrespective of age ( p = 0.019 in 8W-old mice and 0.0005 in 1Y-old mice, respectively; paired t -test; n = 5 per group). The percentage of CD45 - BrdU + cells in the MGs was not different between 8W- and 1Y-old mice ( p = 0.483); however, the percentage of CD45 - BrdU + cells in the LGs was significantly higher in 1Y-old mice than in 8W-old mice ( p < 0.0001; independent t -test; n = 5 per group). ( B ) Representative images of the LG sections by Ki-67 immunofluorescence staining (400x). Arrows indicate inflammatory foci. The expression of Ki67 + cells in both the acinar and inflammatory cell infiltrating areas tends to increase with aging. * p < 0.05, *** p < 0.001, and **** p < 0.0001. Data are presented as means +- standard error.
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- Figure 4 bFGF promoted Ki67 expression. SHEDs were treated with bFGF (20 ng/mL) and the mRNA expression of MKI67 was examined using real-time polymerase chain reaction at 6 and 24 h after treatment (A). Ki67 protein expression was evaluated using immunofluorescence staining at 24 h after treatment (B). Bars indicate a significant difference. Figure 4
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- Fig. 4. The growth fraction and the length of the cell cycle change in response to FGF2. (A) Example of cells stained for nuclei (blue), Ki67 (red) and Sox2 (green) at 36 hpp. (B) Quantification of the percentage of progenitor cells that are actively cycling in both conditions and at three different time points. Columns represent the mean between independent repeats. Error bars represent s.e.m. (C) Cell cycle prediction by the branching process formalism for the two different FGF2 concentrations tested: SC (red) and SC+FGF (blue). Areas around the curves represent the 50% confidence interval.
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- Fig 3 Proliferation. a) Cell count of long-term treated Fao cells by microcapillary flow cytometry with adjusted seeding to result in equal cell numbers ( n = 5). Proliferating Ki67+ cells (% of Ki67-positive cells of all cells in the sample) in b) single treated ( n = 6) and c) long-term treated ( n = 3) Fao cells, detected by microcapillary flow cytometry. Flow cytometric dot plots are in the S3 Fig . d) Fluorescent micrographs of Fao cells after long-term treatments were stained with Ki67 antibody (green signal) and Hoescht (blue signal): untreated control (left), 6 muM ARI (middle) and 6 muM OLA (right). Scale bars: 50 mum. Data are presented as mean +- SD and analysed with one-way ANOVA followed by Dunnett's test. **P
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- Figure 2 Effect of anti-BAFF treatment on intra-renal T and B cell zones and TLO formation. ( A ) shows representative allograft sections stained for CD3 (T cells, pink), CD20 (B cells, yellow), and Ki67 (proliferating cells, green) with distinct T and B cell zones. ( B ) shows the frequency of T cell (CD3 + ) and B cell (CD20 + ) zones, which were defined as dense clusters of predominantly one cell type. ( C ) shows the frequency of TLOs, which were defined as dense intra-renal infiltrates containing a T and a B cell zone. NR, no rejection (black); CR, chronic rejection (pink); CR + AB, chronic rejection and anti-BAFF antibody (green). Data is shown as group means and individual data points per rat. Statistical significance is shown as *** p < 0.001.
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- Fig. 1 Injury and proliferation of ECs after influenza infection in vivo. ( A ) Representative immunofluorescence images of capillaries (red) and leukocytes (green) in lung tissue with or without influenza injury. Scale bars, 50 mum. D10, day 10. ( B ) Quantification of ECs (CD31 + ) in the nonleukocyte fraction (exclusion of CD45 + cells) via flow cytometric analysis. ( C ) Representative gating scheme for identification of proliferating EC analysis via EdU incorporation at day 19 after influenza. ( D ) Intracellular flow cytometry quantification of proliferative ECs (CD45 - /EpCAM - /CD31 + /EdU + ) as a percentage of total lung ECs on days 0, 7, 19, and 27 after influenza infection. n = 3 to 4 per group. ( E ) Cumulative endothelial proliferation on day 27 after infection and mock-infected controls. ( F ) Typical image of lungs at day 19 after influenza. Red dashes represent the lung epithelial lesion area (RAGE - ), and the white dashes area represents the VECad low-expression area. Scale bar, 1 mm. ( G ) The enlarged area from (F) shows the vascular endothelium across normal and injured epithelial areas (white, VECad). Scale bar, 200 mum. ( H ) Representative immunostaining of proliferative ECs from peripheral (#1) and central (#2) parts of epithelial lesion on day 19. Arrows indicate proliferative ECs (colocalization of ERG and Ki67). Scale bars, 25 mum. ( I ) Methodology to determine whether regenerated ECs are derived from preexisting endothelium or transdifferentiati
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- FIGURE 4 (A) Representative Ki-67-immunostained liver sections from non-pregnant (NP) and pregnant (P18) rats. Scale bars correspond to 50 mum. Ki-67-positive hepatocytes were counted at 40x optical field, five high-power images per animal were analyzed. (B) Scatter plots of numbers of Ki-67-positive hepatocytes per field of view (FoV) in pregnant (P18) and non-pregnant (NP) groups with mean and standard deviation. *** p < 0.001.
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- Figure 4. Deletion of Dnmt1 results in reduced proliferation of ALK+ cells. (A) Cell proliferation analysis by immunohistochemistry staining of Ctrl, KO, ALKKO thymi and ALK tumor tissues using Ki67 antibody. The graph shows quantification of Ki67 positive cells using Definiens Tissue Studio 4.2 software. Non-proliferative areas in the thymus were excluded from analysis. Data are shown as mean +- SD, *** P < 0.001, pair-wise comparison to control using unpaired t test, n = 4. (B) Double immunofluorescence staining of ALK tumors and ALKKO thymi. Tissues were stained with antibodies against ALK (red) and Ki67 (green) and counterstained with DAPI (blue). Pictures were acquired with identical pixel density, image resolution, and exposure time. The graph shows quantification of immunofluorescence staining by counting Ki67/ALK double-positive relative to total number of cells (DAPI positive) of two equally sized areas per tumor/thymus from four biological replicates, respectively. Cell counting was performed by two individuals and slides were blinded for counting. Data are shown as mean +- SD, *** P < 0.001, using unpaired t test.
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- Figure 3 AMD3100-induced precocious differentiation of epithelial cells. ( A , B ) Representative contour tracing ( A ) and bud number changes ( B ) of control and AMD3100-treated eSMGs during 48 h at 6-h intervals ( n = 3). ( C ) EdU staining results at 6 and 24 h after AMD3100 treatment. EdU in green and PNA in gray ( n = 4, scale bar: 500 um). ( D ) Immunostaining results of Ki67 (red) and F-actin (green) in acini and duct of eSMGs 24 h after AMD3100 treatment. Morphologies of acinar buds and duct cells are outlined with white dotted lines. Scale bar: 50 um. ( E ) Duct widths of control and AMD3100-treated eSMGs were visualized via F-actin-based intensity profiles of horizontal sectioning of ducts 24 h after the treatment. ( F ) Duct widths of control and AMD3100-treated eSMGs were quantified 24 h after the treatment ( n = 9). ( G ) Immunostaining results of AQP5 (green) and KRT7 (red). Magnified regions of acinar buds are marked with white dotted squares. The white arrows (middle panels) indicate areas with the highest AQP5 expression ( n = 4, scale bar: left, 100 um; middle and right, 50 um). Data are presented as the mean +- SEM; * p < 0.05, **** p < 0.0001; t -test.
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- Figure 7. Met-STAT3 signaling is attenuated in Cdcp1 -knockout mice. (A, B) Cdcp1 wild-type (+/+) and homozygous knockout (-/-) mice at 8 wk of age were subjected to UNX or sham operation. Compensatory growth of remaining kidney was analyzed at the indicated time points after operation and increases in remaining kidney/body weight ratios were assessed. (C, D, E, F) The remaining kidney after UNX was subjected to microscopic immunofluorescence analysis with specific antibodies against Met pY1234/1235 (C), STAT3 pY705 (D), CDCP1 pY734 (E), and Ki67 (F) and Alexa Fluor 594-conjugated secondary antibody (magenta). Proximal tubules were visualized by staining with FITC-LTL (green). Representative images were shown. Scale bars: 50 mum. (G) Ki67-positive proximal tubules (%) were estimated by calculating the ratio of Ki67-stained tubules to the total number of tubules (n > 100). (H) Schematic model of hepatocyte growth factor-induced adaptive renal regeneration. CDCP1-Src regulates the Met-STAT3 signaling leading to compensatory renal growth through induction of ECM rearrangement and cell growth/proliferation. Data information: In (A, G), the mean ratios +- SD were obtained from at least six (A) or three mice (G) per group. * P < 0.05; ** P < 0.01; **** P < 0.0001; NS, not significantly different; two-way ANOVA was calculated compared with sham-operated control or between wild-type and knockout mice.
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- Figure 3. Microcolonies exhibit a hypo-proliferative phenotype. ( A ) Functional annotation of genes downregulated in microcolonies/higher in macrometastases. GSEA msGDMIB for Hallmark and canonical pathways (p
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- Fig. 6 Overexpression of miR-384 inhibits growth of xenograft tumor in vivo. 6-10B cells with stable miR-384 mimic or mimic control transfection were implanted in nude mice. a change of tumor volume after cell implantation in mice; b tumor weight in mice on the 35th day after animal euthanasia; c Ki-67 expression in mouse tumors detected by IHC staining; Repetition = 3. Data are exhibited as mean +- SD; n = 5 in each group; in panel a , data were analyzed using two-way ANOVA and Tukey''s multiple comparison test, while data in panels b and c were analyzed by the unpaired t test; * p < 0.05; ** p < 0.01 vs. Mock group
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- Figure 3 Decreased epidermal hyperplasia and dermal cellular infiltrates in miR-31 fl/fl /K5-Cre mice treated with IMQ. ( a ) Schematic representation of primers for genotyping and targeting strategy. ( b ) miR-31 genotyping using P1/P2, 1,064 bp band for miR-31 fl/fl and 235 bp band for miR-31 fl/fl /K5-Cre (cKO). DNA samples were prepared from total skin. ( c ) Cre-mediated tissue-specific deletion of miR-31 in epidermis. DNA samples were prepared from either epidermis or dermis. ( d ) miR-31 expression in epidermis derived from miR-31 fl/fl and cKO mice. ( e ) Phenotypic presentation of mouse back skin for miR-31 fl/fl or cKO mice treated with IMQ or vehicle for 7 days. ( f ) Splenomegaly and lymphadenopathy in miR-31 fl/fl or cKO mice treated with IMQ or vehicle for 7 days. Data are representative of more than five mice. ( g ) Skin thickness was measured on the days indicated. Symbols represent mean skin thickness+-s.e.m. for five to six mice per group. ( h ) H&E staining of the back skin of miR-31 fl/fl or cKO mice treated with IMQ or vehicle. Dotted line indicates the border between the epidermis and the dermis. Scale bar, 100 mum. ( i ) Acanthosis of miR-31 fl/fl or cKO mice treated with IMQ or vehicle. ( j ) Dermal cellular infiltrates of miR-31 fl/fl or cKO mice treated with IMQ. ( k ) Immunostaining of Ki67 in lesional skin derived from miR-31 fl/fl (left panel) or cKO (right panel) mice treated with IMQ. Scale bar, 100 mum. ( l ) Quantitation of Ki67 + cells in epi
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- Figure 5 Inhibition of ppp6c is functionally important for the biological effects of miR-31 in epidermal hyperplasia. ( a , b ) Western blotting of ppp6c expression in the epidermis of normal skin derived from four healthy individuals (Ctr-1 to 4) or in psoriatic lesions derived from four patients with psoriasis (Pso-1 to 4). ( c ) Immunohistochemical staining of ppp6c in skin sections derived from healthy or psoriatic skin. Scale bar, 100 mum. ( d ) Primary mouse keratinocytes were transfected with scramble siRNA (Ctr) or with ppp6c siRNA (siRNA). Cell lysates were immunoblotted with anti-ppp6c or anti-actin. ( e ) Cell cycle analysis of mouse primary keratinocytes transfected with scrambled siRNA or ppp6c siRNA. ( f ) Western blotting of ppp6c expression in epidermis derived from lentiviral shRNA-control (LV-Ctr) or lentiviral shRNA-ppp6c (LV-shRNA) treated mice. ( g ) H&E staining of the back skin injected with LV-Ctr or LV-shRNA in mice applied with IMQ. Dotted line indicates the border between the epidermis and dermis. Scale bar, 100 mum. ( h ) Acanthosis of the back skin injected with LV-Ctr or LV-shRNA in mice applied with IMQ. ( i ) Immunohistochemical staining of Ki67 in skin sections derived from mice injected with LV-Ctr or LV-shRNA prior to IMQ painting. Dotted line indicates the border between the epidermis and dermis. Scale bar, 50 mum. Values ( a , d , f ) were expressed as fold changes relative to Ctr-1 ( a ), to scramble siRNA ( d ), or to lentiviral shRNA-co
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- Figure 6 NF-kappaB signaling inhibits ppp6c expression by inducing miR-31. ( a ) Undifferentiated NHEK proliferation induced by various concentrations of IL-6 for 24 h, and analysed by BrdU incorporation assay. ( b ) NHEK were transfected with scramble siRNA (Ctr) or with p65 siRNA (p65 siRNA). Cell cycle analysis of NHEK or transfected NHEK treated without or with IL-6 for 24 h. ( c ) In vitro wound healing rate of NHEK treated without or with IL-6 for 16 h. ( d , e ) Three-dimensional organotypic culture of HaCaT keratinocytes treated without or with IL-6. Scale bar, 100 mum. ( f ) 1 mug recombinant mouse IL-6 (in 25 mul PBS) or PBS was injected i.d. in ears of C57BL/6J mice. Ear sections were prepared for Ki67 staining 3 days after IL-6 administration. Scale bar, 100 mum. ( g ) NHEK were transfected with scramble siRNA (Ctr) or with p65 siRNA (p65 siRNA). Western blotting of ppp6c expression in NHEK with or without IL-6 treatment for 24 h. ( h ) Cell cycle analysis of primary mouse keratinocytes derived from miR-31 fl/fl or cKO mice in absence or presence of IL-6. Values were expressed as fold changes relative to non-stimulated HaCaT keratinocytes ( e ) or to non-stimulated NHEK ( g ) and normalized to beta-actin. IL-6 was used at the concentration of 50 ng ml -1 ( b - e , g , h ). ** P
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- Figure 7 Administration of antagomir-31 decreases epidermal hyperplasia and dermal cellular infiltration induced by IMQ. Mice were injected subcutaneously with an irrelevant antagomir (NC) or an antagomir to miR-31 (anti-miR-31). The first injection was administered 3 days before the application of IMQ and thereafter was performed every other day until the end of the experiment. ( a ) H&E staining of the back skin derived from mice injected with NC (upper panel) or anti-miR-31 (lower panel). Scale bar, 100 mum. ( b , c ) Acanthosis and dermal cellular infiltrates were quantitated for mice treated with NC or anti-miR-31. ( d , e ) Ppp6c mRNA and protein levels in NC- or anti-miR-31-treated mice. ( f , g ) Immunohistochemical staining of ppp6c or Ki67 in skin sections derived from NC- or anti-miR-31-treated mice after induction of skin phenotype by IMQ ( n =8-9). Scale bar, 50 mum ( f ) or 100 mum ( g ). For all measurements ( c ), the median number of specifically stained dermal nucleated cells was counted in three high-power fields per section. Results ( d ) are presented as the ratio of mRNA to the beta-actin, relative to that in NC-treated mice. * P
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- Figure 7 W-CIN induced senescent cells secrete CLEC11A. ( a ) Levels of CLEC11A secreted in the CM of each SMC1 and BUB1-depleted cell line. ( b ) Fold expression of CLEC11A mRNA levels normalized to GAPDH in W-CIN-induced senescent and SEN cells and ( c ) Paraquat (PQ, black and white stripe bar) or Bleomycin (Bleo, gray bar)-induced senescence relative to untreated cells (UNT, white bar). ( d-g ) Secretion levels of SASP factors that significantly correlate with W-CIN levels: ( d ) CLEC11A, ( e ) CCL2, ( f ) CCL27 and ( g ) MIF. ( h ) Bright field representative images of SA-betagal staining in EV, shS2 and SEN fibroblasts 45 days after lentiviral transduction. ( i ) Quantification of SA-betagal and MKI67 positively stained fibroblasts 45 days after lentiviral transduction. (*) Indicates significant differences ( p < 0.05) from EV cells tested by One-way ANOVA. Data are expressed as mean +- SD (n = 3).
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- Fig. 9 CXCR3 mediates CXCL9/10-induced oncosphere formation and can be targeted to inhibit lung metastasis. Quantification of oncospheres by MDA-LM2 cells ( a ) or SUM-LM1 cells and primary breast cancer cells from pleural fluids or ascites ( b ) after stimulation with 100 ng/ml recombinant CXCL9/10, individually or together. In addition, the cells were treated with 10 muM CXCR3 antagonist (CXCR3i) or vehicle. Biological replicates ( a ) vehicle n = 6, CXCR3i n = 5; b SUM-LM1 n = 5, patient samples, control and CXCL9/10 + vehicle n = 5 for each group, CXCL9/10 + CXCR3i n = 4. Sphere numbers were normalized to the average number in the control group. P values were calculated on biological replicates by ordinary one-way ANOVA with Sidak''s multiple comparisons test. c Quantification of MDA-LM2 oncospheres in control medium (vehicle), in conditioned medium (CM) from control MRC-5 fibroblasts (naive), or from MRC-5 cells treated with MDA-LM2 cell CM (activated), together with CXCR3i or vehicle; n = 4 biological replicates with 5-10 technical replicates each. P values were determined by ordinary one-way ANOVA with Tukey''s multiple comparisons test. a - c * P < 0.05, ** P < 0.01, *** P < 0.001, **** P < 0.0001. Lung colonization in NSG mice injected with MDA-LM2 cells ( d ) or BALB/c mice with 4T1 mouse mammary tumor cells ( e ). In both settings, the mice received systemic CXCR3i treatment. Metastatic colonization was quantified by bioluminescence after 13 days. Representative ex
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- Figure 2. SC numbers and characteristics in sciatic nerves of Rnf40 DeltaSC mice. ( A - C ) Comparison of the number of total cells (A) as well as the relative contribution of SCs to the overall cell population (B) and SC density (C, as determined by the number of SCs per mm 2 ) in sciatic nerve sections of control (Ctrl, white bars) and Rnf40 DeltaSC (gray bars) mice at P0, P5, P14, P28 and P56 by quantification of nerve sections stained with DAPI and antibodies against Sox10 ( n = 3-5; mean values +- SEM). ( D - M ) Immunohistochemical stainings of sciatic nerve sections of control (D-H) and Rnf40 DeltaSC (I-M) mice at P0 (D, I), P5 (E, J), P14 (F, K), P28 (G, L) and P56 (H, M) with antibodies directed against Sox10. Sections were placed on a black background and are surrounded by a dotted line. Scale bars: 50mum. ( N - P ) Comparison of the number of Ki67-positive proliferating cells (N), the percentage of Ki67-positive proliferating SCs (O) and total TUNEL-labled cells (P) in sciatic nerve sections of control (Ctrl, white bars) and Rnf40 DeltaSC (gray bars) mice at P0, P5, P14, P28 and P56 ( n = 3; mean values +- SEM). Statistical significance was determined by unpaired two-tailed Student''s t -tests (* P
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- Fig. 2 Expression of SHH pathway and cell identity markers did not change with anti-SHH treatment. a Gli1 expression (red) was detected in the mouse brain but was barely detected in lesions from either group. Inset rabbit IgG1 isotype control. b Dual immunofluorescence for EpCAM (red) and Ki67 (white), insert isotype control. c Immunofluorescence for Caspase 3 (red), insert isotype control. B + C quantification; EpCAM, Ki67 and Caspase 3 expressed as a percentage of total cell population, isotype control (black circles) and anti-Shh (white circles). Data analysed by an unpaired, two-tailed Mann-Whitney test
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- Figure S2. Pathological and molecular characterization of Lkb1 perturbations in murine and human prostate cells. (A) Immunohistochemical images of prostate tissue in Pten pc +/- Lkb1 pc +/+ and Pten pc +/- Lkb1 pc -/- mice. Staining as indicated: p-AMPK (Thr172). (B) Representative immunohistochemical images of prostate tissue in Pten pc +/- Lkb1 pc +/+ and Pten pc +/- Lkb1 pc -/- mice. Staining as indicated: H&E, pS6 (Ser235/236), and p63. (C) Analysis of Krt5 gene expression by qRT-PCR in Pten pc +/- Lkb1 pc +/+ ( n = 3), Pten pc +/- Lkb1 pc +/- ( n = 3), and Pten pc +/- Lkb1 pc -/- ( n = 3) mice. Data are normalized to Gapdh expression. (D) Gene set enrichment analysis of the squamous cell carcinoma signature in Pten pc +/- Lkb1 pc -/- (SCC-squamous cell carcinoma) and Pten pc-/- Lkb1 pc +/+ (PADC-prostate adenocarcinoma) mice. (E) Representative immunofluorescence images (left) of Ki67 (green) and CK5 (red), with quantification of double positive cells (right) in prostate tissue of Pten pc-/- Lkb1 pc +/+ and Pten pc +/- Lkb1 pc -/- mice. (F) Analysis of LKB1 gene expression by qRT-PCR in DU145 cells with ectopic expression of WT LKB1 (LKB1 WT ), the kinase-defective LKB1-K78I mutant (LKB1 K78I ), or transduced with mock vector (pBABE; n = 6; independent experiments). Data are normalized to control (pBABE; dashed line). (G) Effect of LKB1 WT and LKB1 K78I expression on cellular growth ( n = 3; independent experiments). (H) Quantification of invasion (C; n = 4, independent
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- Figure 2. Cell-cycle-activated and quiescent SSCs are present throughout the cycle of the seminiferous epithelium in vivo (A) Whole-mount immunofluorescence (WM-IIF) of SOX3 (white) and Ki67 (red), together with ID4-EGFP epifluorescence (green) in seminiferous tubules from adult Id4 - Egfp mice. Scale bar, 20 mum. Arrowhead, quiescent SSCs (ID4-EGFP Bright /SOX3-/Ki67-); asterisk, late progenitors (ID4-EGFP Dim /SOX3+/Ki67-). (B) Flow cytometry analysis of adult Id4 - Egfp mouse seminiferous tubule cells sequentially gated for SSC-enriched CD9 Bright /ID4-EGFP Bright spermatogonia (left) and SOX3 and RARgamma staining (right). Figure S3H shows negative controls. (C) Quadrant statistics from the right panel of (B). Data are mean +- SEM (n = 3 adult Id4-Egfp mice). (D) Quantification of Ki67 staining intensity in cells from (B) grouped by ID4-EGFP Bright /SOX3 low /RARgamma low (SSCs) or ID4-EGFP Bright /SOX3 high /RARgamma low (early progenitors). Data are mean +- SEM. Two-tailed Student''s t test (**p < 0.01). (E-G) WM-IIF of PLZF (green), SOX3 (red), Ki67 (white), and peanut agglutinin (PNA) in adult C57BL/6 mice (n = 4). Scale bar, 20 mum. Arrowhead, quiescent SSCs (PLZF+/SOX3-/Ki67-); arrow, activated SSCs (PLZF+/SOX3-/Ki67+). (H) Proportion of quiescent SSCs and activated SSCs in each stage from (E) and (F). Data are mean +- SEM. The proportion of Ki67+ SSCs was not significantly different according to ANOVA (p = 0.093).
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- Figure 3. Signaling pathways that regulate transitions in cell state among mouse SSCs and progenitors (A-C) Phosphorylated MAPK (phospho-MAPK) (A), phosphorylated AKT (phospho-AKT) (B), and p-RPS6 (C) levels in isolated seminiferous tubule cells from adult Id4-Egfp mice gated for quiescent SSCs (ID4-EGFP Bright /SOX3 low /Ki67 low , orange), activated SSCs (ID4-EGFP Bright /SOX3 low /Ki67 high , green), and early progenitors (ID4-EGFP Bright /SOX3 high , red) compared with unstained negative control cells (gray). Gating controls are in Figure S3H . (D) Quantification of flow cytometry from (A)-(C) (n = 3 adult Id4-Egfp mice). Dot size, proportion of undifferentiated spermatogonia; color, percentage that are marker positive. (E) WM-IIF of PLZF (green, spermatogonia), p-RPS6 (red, mTORC1 activity), SOX3 (white, early/late progenitors), and Ki67 (blue, proliferation) in adult C57BL/6 mice. Arrowhead, quiescent SSCs (PLZF+/SOX3-/Ki67-); circle, early progenitors (PLZF+/SOX3+/Ki67+). Scale bar, 20 mum. (F) Quantification of p-RPS6 levels in quiescent SSCs (ID4-EGFP Bright /SOX3 low /Ki67 low ), activated SSCs (ID4-EGFP Bright /SOX3 low /Ki67 high ), and early progenitors (ID4-EGFP Bright /SOX3 high ) in untreated and rapamycin-treated adult Id4-Egfp mice (n = 3 adult Id4-Egfp mice). Dot size, proportion of undifferentiated spermatogonia; color, percentage marker positive. (G) Proportion of SSCs (KIT-/PLZF low /SOX3 low /RARgamma low ), early progenitors (KIT-/PLZF low /SOX3 high /
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- Figure 5. mTORC1 inhibition fails to drive activated SSC accumulation and early progenitor depletion in the absence of intercellular bridges (A and B) WM-IIF of PLZF (green, spermatogonia), RARgamma (red, late progenitors), SOX3 (white, early/late progenitors) or KIT (white, differentiating spermatogonia), and Ki67 (blue, proliferation) in seminiferous tubules from P36 Tex14 -/- mice. Arrowhead, quiescent SSCs (PLZF+/SOX3-/RARgamma/Ki67-) or early progenitors (PLZF+/KIT-/RARgamma-/Ki67-); arrow, activated SSCs (PLZF+/SOX3-/RARgamma-/Ki67+) or early progenitors (PLZF+/KIT-/RARgamma-/Ki67+); circle, early progenitors (PLZF+/SOX3+/RARgamma-/Ki67+); asterisk, late progenitors (PLZF+/SOX3+ or KIT-/RARgamma+/Ki67-). Scale bar, 20 mum. (C) Proportion of SSCs (KIT-/PLZF low /SOX3 low /RARgamma low ), early progenitors (KIT-/PLZF low /SOX3 high /RARgamma low ), and late progenitors (KIT-/PLZF high /SOX3 high /RARgamma high ) in seminiferous tubule cells from control (n = 3) and rapamycin-treated (n = 3) Tex14 -/- mice at P36 (see controls in Figure S3J ). Data are mean +- SEM. (D) Ki67 staining intensity in SSCs (KIT-/PLZF low /SOX3 low /RARgamma low ), early progenitors (KIT-/PLZF low /SOX3 high /RARgamma low ), and late progenitors (KIT-/PLZF high /SOX3 high /RARgamma high ) in seminiferous tubule cells from Tex14 +/- , Tex14 -/- , and rapamycin-treated Tex14 -/- mice (n = 3 each) at P36 (see controls in Figure S3J ). Data are mean +- SEM. Two-tailed Student''s t test (***p < 0.001)
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- Figure 1 Schematic representation of X-ray microbeams for different field sizes and representative immunofluorescence images of 53BP1 foci and Ki-67-positive cell. ( A ) The illustration of a cover glass with grid lines and X-irradiation field sizes. The cells were cultured on a cover glass with grid lines to create the cell populations. This cover glass is a 0.15-mm grid that is engraved on the surface of the cover glass that makes it possible to confirm the irradiation field in more detail (a). X-ray microbeams were applied at 0.02 mm 2 (b), 0.09 mm 2 (c), 0.81 mm 2 (d), and 1.89 mm 2 (e) irradiation field sizes to cell populations by an X-ray microbeam generator, centering on K11 on the cover glass. Irradiation field is shown in gray. ( B ) The representative immunofluorescence image of the X-irradiated area (K11) and the non-irradiated area (K10, K12) in 0.09 mm 2 . Blue: Nuclei. Red: 53BP1 foci. Green: Ki-67-positive cells. These figures were created with PowerPoint for Mac ver.16.46.
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- Figure 2 Orally administered RORgamma antagonists exhibit strong anti-tumor activities. ( A ) C4-2B cells were subcutaneously xenografted on the flanks of NOD-SCID mice. When tumors reached 100 mm 3 , mice were divided into two groups ( n = 8 tumors per group) and treated with vehicle or 5 mg/kg cmpd 31 (i.p.) five times per week for 25 days. Tumor volumes were monitored. ( B ) Mice with LuCaP-35CR PDX tumors were treated orally with RORgamma antagonists Cmpd 31 and XY018 (20 mg/kg or 40 mg/kg) or vehicle ( n = 8 tumors per group), five times per week. Tumor volumes were monitored. ( C ) Representative images from Ki-67 and cleaved-Caspase-3 immunohistochemistry of tumors from mice treated with 40 mg/kg of Cmpd 31, XY018, or vehicle. Scale bar: 50 um. ( D , E ) Quantitative analysis of anti-Ki-67 positive nuclei or anti-cleaved caspase 3 stained cells in LuCaP-35CR tumors. The percentage of positive nuclei or cells were calculated by dividing the number of positive nuclei or cells by the number of total nuclei or cells per visual field. Results are presented as mean +- SD. ** p < 0.01, *** p < 0.001, **** p < 0.0001.
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- Figure 5 Dysmorphic vascular development in Dll4 mutant mice. ( A ) PECAM (green) whole-mount staining on E14.5 Dll4 +/+ and Dll4 +/lacZ mouse lungs, n = 4 per group. ( B ) PECAM (brown) and Harris Hematoxylin (H) (blue) staining on E17.5 Dll4 +/+ and Dll4 +/lacZ mouse lungs. PECAM staining indicates much denser vascular structure in Dll4 +/lacZ mouse lung at canalicular stage. Note: Lack of bronchioles in Dll4 +/lacZ lung, n = 5 per group. ( C ) PECAM (brown) and fast red (red) staining on P6 Dll4 +/+ and Dll4 +/lacZ mouse lungs. A double capillary network was visualized in Dll4 +/+ mice, but ""whorls"" of misaligned network were found in Dll4 +/lacZ mouse lung at early alveolar stage, n = 4 per group. The arrow points to the double capillary in the left panel, and the arrow points to the misaligned network in the right panel. ( D and F ) PECAM (brown) and H staining on P14 Dll4 +/+ and Dll4 +/lacZ mouse lungs. The arrows in ( D ) point to intermediate blood vessels, and the arrows in ( F ) point to the capillaries, with quantifications shown for intermediate blood vessel number ( E ) and capillary thickness ( G ), which were less at P14 in Dll4 +/lacZ mouse lung. n = 5 mice per group, ** P < 0.01, *** P < 0.001. ( H ) Ki67 (green), ERG (red), and DAPI (blue) staining on P14 mouse lung slides, with quantifications shown for Ki67 + cells percentage in total ERG + cells ( I ). n = 6 mice per group, P < 0.05. The arrows in ( H ) point to Ki67 + ERG + cells. Scale bars: 100 mum
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- Fig. 4 Elevated Tet1 is essential for MB progression. a , b Kaplan-Meier curves show the significant increase in survival from SmoA1 +/+ mice crossed with hemizygous deletion of Tet1 ( a p < 0.0001; log-rank test), but not crossed with hemizygous deletion of Tet2 ( b p = 0.5830; log-rank test). c , d 5hmC dot blot analysis shows significant increase in 5hmC levels in tumors from SmoA1 +/+ ; Tet1 +/- mice ( n = 5; 3 representative samples shown) compared to tumors from SmoA1 +/+ ( n = 5; 3 representative samples shown) despite similar ages of tumor-associated symptoms shown in box plot below dot blot ( n = 5 per group). e Tet1 protein expression is significantly higher in SmoA1-MBs ( n = 7) compared to corresponding NCs ( n = 4) ( p < 0.05). f Pearson correlation between Tet1 expression and age-of-onset (Pearson R 2 = 0.5059, * p = 0.0366). g H&E staining (left) and ratio per phenotype (right) of 12-week-old SmoA1 +/+ mice in the presence of either wild-type or hemizygous deletion of Tet1 ( p < 0.0001; Welch's t -test). h Fluorescence microscopy of normal cerebellum and MB with Ki67 (red) and Tet1 (green) in 12-week-old SmoA1 +/+ mice showing Tet1 expression is significantly higher in Ki67-positive cells (blue: DAPI, **** p < 0.001)
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- Fig. 3. Astrocyte proliferation is suppressed by high oxygen and stimulated by return to room air. (A) Representative en-face confocal images of Sox9, an astrocyte nuclear marker. (B) Summary of total astrocyte numbers quantified from images similar to those in A. Astrocyte numbers were significantly higher in NOIR-exposed animals from P8-P12. At P21 there was no group difference but some NOIR animals had nearly triple the number of astrocytes as controls. (C,D) Sox9 and Ki67 double labeling was used to identify mitotically active astrocytes. C shows representative images and D shows quantification of astrocyte proliferation. At P4, proliferation was reduced in NOIR retinas. After return to normoxia, proliferation was increased compared with controls. (B) Two-way ANOVA with Holm-Sidak post-hoc test: main effect of age F (5,46)=11.67, P
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- Fig. 3 Genetic lineage tracing shows fewer adult born neurons from Tcf4 -deleted nestin -expressing progenitors. ( A ) Schematic for genetic lineage tracing experimental regime. ( B and C ) Representative images (B) quantitation (C) of genetic reporter-based tracing of progenitors 30 days after deletion for DCX expression. ( D ) Genetic reporter-based tracing of progenitors 60 days after deletion for Calbindin expression. ( E and F ) Quantitation of genetically traced Calbindin+ve and Prox1+ve mature neurons. ( G and H ) Representative images (G) quantitation (H) of genetic lineage tracing for Ki67+ve progeny at day 7 after deletion. n = 3 animals per genotype, each dot represents a section from a brain, and error bar represents SD. (unpaired t test, * P < 0.01, ** P < 0.001, and *** P < 0.0003). Scale bars, 50 mum.
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- Figure 5. Effect of ADK on DNA synthesis in the developing CB. A , ADK (red) and Ki67 (green) IR in the mouse CB at different developmental stages (P0, P2, P5, and P9) as revealed by double immunofluorescence. A-C , At P0, ADK/Ki67 double-labeled cells are widespread in the entire developing cerebellar cortex with robust expression at the outermost EGL. D-F , At P2, the layers of cerebellar cortex become visible where ADK/Ki67-positive cells are observed in the external granular layer (EGL), the developing Purkinje layer (PL), and the internal granular layer (IGL). G-L , At P5 and P9, ADK/Ki67-labeled cells initially increase then decrease in the EGL, which period coincides with the radial migration of cerebellar granular neurons. G , In the internal white matter (WM) region at P5, a population of ADK/Ki67-positive cells was observed, which declined in P9 ( H ). Scale bars: 100 mum ( A-C , G-L ), 200 mum ( D - F ), 25 mum ( D , G , insets). M , The number of Ki67/ADK double labeled cells in the EGL at P0, P2, P5, and P9 per mm 2 ( n = 3/group). One-way ANOVA with Tukey's multiple comparisons post hoc test (* p < 0.05 for P5 vs P0, # p < 0.05 for P9 vs P0, and *** p < 0.001 for significance). N , Western blot analysis of immature granular neuronal precursors (GNPs). Representative blot of protein extracts from control (Ctl) glioblastoma U373 cells and immature GNPs shows that the precursors express ADK-L exclusively whereas control cells express both isoforms. O , Inhibition o
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- Figure 2 Changes in lncRNA Vof-16 expression affect neuronal survival and proliferation in vitro . To observe the role played by lncRNA Vof-16 on cell survival and proliferation, the neuron-like PC12 cells were transfected with lncRNA Vof-16 overexpression or knockdown lentivirus or negative control (NC) vectors. (A and C) The overexpression of lncRNA Vof-16 using a lentivirus significantly decreased PC12 cell viability. Representative picture (A) and quantification (C) of live/dead staining performed on PC12 cells 1, 3, and 5 days after transfection with lncRNA Vof-16 lentivirus. The blue arrows indicate dead cells. (B and D) Representative image (B) and quantification (D) of Ki67 staining performed in PC12 cells 1, 3, and 5 days after transfection with lncRNA Vof-16 lentivirus. The knockdown of lncRNA Vof-16 promoted PC12 cell proliferation. The fluorescent indicator is fluorescein isothiocyanate for Ki67 (green). Scale bars: 50 um in A and 25 um in B. Data are expressed as the mean +- SD ( n = 3). * P < 0.05, ** P < 0.01, *** P < 0.001, vs . control group (one-way analysis of variance, followed by Tukey's post hoc test). Control: Without any treatment; NC-Knockdown: transfected with knockdown negative control vector; Knockdown: transfected with lncRNA Vof-16 knockdown lentivirus; NC-Overexpression: transfected with overexpression negative control vector; Overexpression: transfected with lncRNA Vof-16 overexpression lentivirus. DAPI: 4',6-Diamidino-2-phenylindole; lncRNA: l
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- Figure 4 Increased expression of Ki67 in NEIL3-deficient colonic epithelial cells. ( a ) Representative immunohistochemistry images of large bowel sections from Apoe -/- Neil3 -/- and Apoe -/- mice stained with nuclei marker DAPI (blue) and proliferation marker anti-Ki67 (green). ( b ) Relative abundance of Ki67-positive cells. Data are presented as mean +- SEM, Student's t test, * p < 0.05, n = 5.
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- Figure 3 High TWIK-1 expression in immature neurons of the DG in TWIK-1 BAC-GFP Tg mice. ( A ) Representative co-immunofluorescence images with GFP, DCX, CB, and Ki67 in P56 of DG. Scale bar, 200 mum. ( B ) Enlarged inset from A. Most of strong GFP-expressing cells co-labeled with DCX (yellow arrow), but not with CB and Ki67 (white arrow). Scale bar, 10 mum. ( C , D ) Quantification of the cell type of strong GFP-expressing cells. Raw data are listed in Supplementary Materials Table S1 . Data are presented as the Mean +- SEM.
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- Figure 4 Deletion of IL-1beta increases beta cell mass and insulin secretion in isolated islets (A-D) GSIS of isolated islets of 52-weeks-old IL-1beta ko (red) and littermate WT control (black) mice; (A) 1 h insulin secretion expressed as percentage of the insulin content per mouse; (B) insulin content per islet; (C) insulin fold stimulation by glucose, (mean of 4 x 10 islets per mouse); (D) number of islets isolated per mouse; n = 11-12 WT and n = 13-14 IL-1beta ko mice. (E) Example of immunohistochemical staining of pancreata from IL-1beta ko and WT control mice (green = insulin, blue = DAPI, scale bar, 400 mum). (F and G) Beta cell mass and mean islet area from 3-4 sections/mouse of 24- and 52-week-old WT and IL-1beta ko mice. (H) Number of islets per pancreas section. (I) Frequency distribution of islet area from 52-week-old IL-1beta ko mice and WT mice. (J) Percentage of islets with one or more Ki67+/ins+/DAPI + cell(s); 472 islets from 4 IL-1beta ko mice and 509 islets from 6 littermate control mice were analyzed. (K) Ki67+/ins+/DAPI + normalized to the mean ins + islet area. (L, N-P) Relative gene expression of 52-week-old IL-1beta ko versus littermate WT control mice; (L and N) IL-1 family genes in islets and liver; (O) cell-cycle genes in islets; (P) islet genes. (M) Plasma IL-1Ra in 52-week-old IL-1beta ko and control WT mice. All data were expressed per mouse. Statistics: (A, F-H) two-way ANOVA and Sidak's multiple comparison test; (B-D, and J-P) Student's t test;
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- Figure 4 Upregulated pathways in LSECs during acute liver injury (A) PCA of LSECs from healthy livers and livers after an acute injury by CCl 4 administration. (B) Schematic representation of pathway analysis from LSECs isolated after CCl 4 administration. (C) Immunofluorescence staining of Lyve1/Ki67, immunohistochemistry staining and quantification of Collagen 4 (* P
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- Figure 2 PNETs from Gcgr Knockout Mice Are Amino Acid Dependent and Dominantly Composed of Proliferative SLC38A5 + Tumor Cells (A) Analysis of bulk RNA-seq data from tumors and neighboring pancreatic control tissue from aged homozygous Gcgr knockout mice. (B) tSNE visualization of single-cell RNA-seq data from dispersed tumors, with insets showing graph-based clustering, Gcg UMI counts, and proliferation signatures for tumor cells. (C) Differential expression analysis of tumor cells classified as having a proliferative signature based on hallmark expression of MKI67 and cyclin-dependent kinases. (D) SLC38A5 and MKI67 co-immunostaining in mouse PNET tissue. Scale bars, 100 mum. (E) GFP immunostaining of liver tissues for quantification of AAV8 titer efficiency. The liver tissue section represents a 5 x 10 12 unit titer. Three biological replicates per virus concentration. Scale bar, 1 mm. (F) Time-course analysis of blood amino acid concentrations in aged homozygous Gcgr knockout mice transduced with AAV8- Gcgr (colored symbols) and aged Gcgr knockout control mice (black and white symbols). (G) Ultrasound quantification of tumor volume in aged homozygous Gcgr knockout mice transduced with AAV8- Gcgr . Data point colors correspond to unique mice across (F) and (G). (H) Whole-slide glucagon, insulin, and SLC38A5 immunostaining of pancreas tissues from tumor-bearing Gcgr homozygous knockout mice that were transduced with AAV8 engineered for liver-specific expression of Gcgr . Sca
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- Figure 4 Human GCGR -Mutant, Alpha Cell-Derived PNETs Dominantly Express the Amino Acid Transporter SLC7A8 + and Exhibit an Immune Desert-like Phenotype (A) Analysis of bulk RNA-seq data from two human tumor biopsies obtained from patients harboring premature stop codons or missense mutations in both GCGR alleles. Scale bars, 5 mm. (B) Reads per kilobase of transcript, per million mapped reads (RPKM) expression analysis and fold change for human solute carrier genes. Amino acid transporters are highlighted by dashed boxes. (C) Whole-slide SLC7A8 immunostaining of three GCGR mutant human tumor biopsies. Scale bars, 2.5 mm and 250 mum. (D) Multiplexed digital spatial profiling of mTOR signaling-related and immune cell-related markers using two FFPE human tumor sections. (E) Whole-slide CD3 immunostaining of mouse pancreas tissue harboring multiple tumors with an in-tissue pancreatic lymph node as a positive control. Scale bars, 250 mum.
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- FIGURE 7 Genetic deletion of OASIS resulted in decreased kidney fibrosis after ischemia and reperfusion. WT and OASIS KO mice were subjected to unilateral renal I/R. A, Three weeks post I/R, the kidney sections were stained with Sirius Red (upper and middle panel) or Masson's trichrome (lower panel). Representative images are shown. Bar: 50 um. B, Sirius Red positive area was evaluated. C, Hydroxyproline content in the kidney tissues was evaluated. D, Immunofluorescence analysis was performed with anti-Ki-67 antibody, anti-alpha-SMA antibody, and DAPI. Representative images are shown. Bar: 50 um. E and F, The number of alpha-SMA+ cells (E) and the number of Ki-67 + alpha-SMA+ cells (F) was counted. ** P < .01 by one-way ANOVA followed by Dunnett test. G, Serum creatinine level was measured 3 weeks after I/R. ** P < .05 by student's t test . Data are shown as mean +- SD (n = 6 for WT, n = 5 for KO)
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- Figure 3. GCPs are divided into two subgroups Notch signaling ON and OFF cells in vivo . A-E , Hes1 promoter activity was stronger in GCPs than GCs ( A , B ). Heterogeneity was observed in Hes1 promoter activities among (KI67-positive) GCPs in the oEGL ( C-E ). The dashed line represents the threshold of intensity visible by eye ( D , E ). Animal numbers: N = 3 for the analysis of B and N = 7 for D,E . Scale bars: 45 mum ( A ) and 20 mum ( C ). Data are shown as mean +- SEM; ** p < 0.01, Student's t test.
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- Figure 2 Hepatic endothelial Ctnnb1 overactivation does not lead to hepatopathy and fibrosis. (A) qRT-PCR for axis inhibition protein 2 ( Axin2 ) of cDNA from freshly isolated LSECs of 2-months-old Ctnnb1 OE - EC mice compared to corresponding Ctnnb1 WT controls ( n = 3). beta-Actin was used as housekeeping gene. ** p < 0.01. (B) Liver weight, liver-to-body weight ratio of 2- to 3-month-old Ctnnb1 WT and Ctnnb1 OE - EC mice (female, n >= 4). Results are represented as mean +- SEM. ns, not significant. (C) Macroscopic liver images of 3-month-old Ctnnb1 WT and Ctnnb1 OE - EC mice (female, n = 4). Scale bar 1 cm. (D) Liver enzymes [aspartate aminotransferase (AST), alanine aminotransferase (ALT), and glutamate dehydrogenase (GLDH)] in serum of 2- to 3-month-old female Ctnnb1 WT and Ctnnb1 OE - EC mice ( n >= 3). Results are represented as mean +- SEM. n.s., not significant. (E) Sirius red staining of liver sections of 2- to 3-month-old male Ctnnb1 WT and Ctnnb1 OE - EC mice ( n = 4). Scale bar 100 mum. (F) Immunofluorescence (IF) staining of DAPI, CD68 and Desmin, and CD68 and Desmin quantification in the liver of 2- to 3-month-old female Ctnnb1 WT and Ctnnb1 OE - EC mice ( n >= 4). Scale bar 100 mum. Results are represented as mean +- SEM. ns, not significant. (G) IF staining of DAPI, glutamine synthetase (GS) and arginase (Arg1), and GS and Arg1 quantification in the liver of 2- to 3-month-old Ctnnb1 WT and Ctnnb1 OE - EC mice ( n = 4). Scale bar 100 mum. Results are represent
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- Fig. 4 At P14, Nrmt1 -/- mice exhibit an expansion of the IPC and neuroblasts pools in the SVZ. a , b GFAP staining is significantly decreased in the SVZ (arrows) of Nrmt1 -/- mice. However, there is a significant increase in c , d SOX2-positive IPCs and e , f Doublecortin (DCX)-positive neuroblasts in Nrmt1 -/- mice. Neither the d percentage of SOX2, Ki-67 double-positive cells, or the f ratio of Ki-67/DCX intensity in Nrmt1 -/- mice is significantly different from WT, indicating proliferation is not occurring at these stages. * p < 0.05 and ** p < 0.005 as determined by unpaired t -test, n = 3. Error bars represent mean +- SEM. Scale bar = 1000 mum.
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- Figure 3 iCOUNT visualizes cell division history in embryonic tissues (A) Overview of iCOUNT mouse at E11.5 (recombination using TAM at E9.5). Right panels show mCherry (red), GFP (green), and KI67 (light blue) signals in tissues indicated. (B) Overview of the developing retina and skin in iCOUNT embryos induced with TAM at E14.5 and analyzed at E16. (C) iCOUNT-targeted cells in the developing cortex. (D) Graph shows quantification of green/total fluorescence and predicted division numbers of cells grouped by KI67 expression (mean +- SD). Nuclei were counterstained with DAPI (blue). n >= 28 cells derived from >= 3 embryos (D). **** p < 0.0001. Images were stitched. Scale bars represent 100 mum in (A) and (B) (retina), and 20 mum in (A, right panels), (B) (skin), and (C). See also Figure S3 .
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- Figure 5 iCOUNT signal in adult mouse tissues (A) Overview of an adult iCOUNT mouse with expression of the tagged H3.1 in diverse tissues as indicated. (B) FACS analyses of cells with distinct red/green histone ratios in diverse tissues as indicated. Left panel shows controls, and right panel shows cells expressing newly synthesized (green) histones after inducible Cre-based recombination. (C) Conditional recombination in adult NSPCs identifies iCOUNT-targeted cells in the adult brain. Left panels show overview, and boxed areas are shown in higher magnification (right panels). (D) 4i-based phenotyping of Cre-targeted cells in the adult hippocampus using a panel of protein markers as indicated reveals radial glia-like NSPCs (R), non-radial glia-like NSPCs (NR), actively dividing NR (KI67+), and newborn neurons. (E) Quantification of green/total fluorescence and predicted division numbers of cells in the adult hippocampus 2 weeks after Cre-based recombination (mean +- SD). (F) Number of previous cell divisions based on iCOUNT and chronic intravital imaging. Note the comparable distribution among R, NR, and newborn neurons. Nuclei were counterstained with DAPI (blue). n >= 10 cells derived from >= 3 mice (E). **** p < 0.0001, ns, not significant. Images were stitched. Scale bars represent 100 mum in (A) and (C) and 20 mum in (C, right panels) and (D). See also Figure S5 .
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- Fig. 5 GTSE1 affects tumorigenesis of OS cells in nude mice following CDDP treatment. A Growth rate of xenograft tumors in each group of mice (two-way ANOVA); B weight of the xenograft tumors in each group of mice (one-way ANOVA); C , D GTSE1-positive ( C ) and Ki-67-positive ( D ) cells in xenograft tumors examined by IHC staining (one-way ANOVA); E portion of apoptotic cells in xenograft tumors determined by TUNEL assay (one-way ANOVA). Data were presented as the mean +- SD from three repetitions. * p < 0.05, ** p < 0.01
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- Enhanced Mph proliferation by hAM-MSCs via CCL2 and TGF-beta1 pathways Mouse bone marrow-derived Mph were cultured with or without hAM-MSCs in a non-contact co-culture model for 48 h. (A) Phase-contrast images showing the Mph frequency. Mph were dissociated for cell number counts, the results of which are presented in the chart. Scale bars, 400 mum. n = 6. (B) Immunocytolabeling showing Ki67 expression in Mph. Collected Mph were stained for a proliferation marker Ki67 and DAPI, and percentage of Ki67 + nuclei was measured and present in the chart. Scale bars, 50 mum. n = 4 in each group. (C) Effects of inhibition of human CCL2 and TGF-beta1 on hAM-MSC-mediated Mph proliferation. Increased Mph numbers by hAM-MSC co-culture were eliminated by addition of neutralizing antibodies for hCCL2 (Mph + hMSC + anti-CCL2 group) and TGF-beta1 (Mph + hMSC + anti-TGF-beta1 group). Isotype (IgG) antibody used as control. Representative phase-contrast images and a chart summarizing the data are presented. Scale bars, 400 mum. n = 4. Data are presented as mean +- SEM. *p < 0.05 and **p < 0.01. Student's t test (A and B) or one-way ANOVA with Tukey's post hoc test (C).
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- Accelerated normal adult human keratinocyte (HEKa) migration and altered cytokine profile are observed on QHREDGS peptide conjugated collagen-chitosan film (Q-Peptide Hydrogel). ( A ) Representative examples of wound simulation assay using HEKa cells adhered to hydrogel film without conjugated peptide, with scrambled Q-Peptide, and with QHREDGS peptide after 24 h (scale bars: 200 mum). ( B ) HEKa migration (relative to initial gap area) in the presence of Q-Peptide Hydrogel (dark grey; n = 12) was accelerated in comparison to the collagen-chitosan film without peptide conjugation (Peptide-free hydrogel; white; n = 11), and the scrambled peptide Hydrogel (light grey; n = 6). ( C ) Representative images of HEKa cells stained with Ki-67 (red) and counterstained with DAPI (blue) after 24 h (scale bars = 100 mum). ( D ) Quantification of cell number as indicated by DAPI staining demonstrates no difference in cell density at 24 h. ( E ) Quantification of % positive Ki-67 staining revealed no significant difference between cells cultured on the Q-Peptide Hydrogel (QH) and the peptide-free hydrogel. ( F ) Human cytokine array on media collected after migration assay conducted on Peptide-free hydrogel and Q-Peptide Hydrogel. Concentration (pg/mL) expressed after subtraction of baseline media. n = 3. H = Peptide-Free Hydrogel, SH = Scrambled Peptide Hydrogel, QH = Q-Peptide Hydrogel. Data are presented as mean +- SD. ** p < 0.01.
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- Treatment with Q-Peptide Hydrogel leads to faster resolution of proliferating keratinocytes at the margin of the wound. Representative sections of immunohistochemical analysis for Ki67 at ( A ) d14 and ( B ) d28. Dashed line indicates basal epithelial layer. Arrows show Ki67 positive nuclei. (scale bar = 100 um). ( C ) Quantification of total number of Ki67+ cells in one high powered field of view at the epithelial edge (averaged from 4 separate tissue sections spanning the center of the wound) revealed significantly fewer proliferating basal epithelial cells on Day 14 following treatment with Q-Peptide Hydrogel compared with no treatment control. Data are presented as mean +- SD. * p < 0.05, N = 3.
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- Figure 5 Loss of GPR56 leads to fewer proliferating OPCs. ( a ) Representative images of NG2 (red) and Ki67 (green) double IHC in the CC of Gpr56 +/- and Gpr56 -/- P14 mice. Arrowheads indicate double-positive cells. ( b ) Quantification of NG2 and Ki67 dual-positive cells. The asterisks represent significance based on unpaired t -test. P =0.0382; n =6 per genotype. ( c ) Representative images of PDGFRalpha (green) and Ki67 (red) double immunostaining on OPCs after cultured for 4 days in proliferation media. ( d ) Quantification of PDGFRalpha and Ki67 dual-positive OPCs. The asterisks represent significance based on paired t -test. P =0.0156; n =3 per genotype. ( e ) Representative images of BrdU (red) and Ki67 (green) double staining on P14 Gpr56 +/+ and Gpr56 -/- brains that were pulsed with BrdU 24 h before. Arrowheads indicate double-positive cells. ( f ) The number of BrdU and Ki67 double-positive cells was quantified in the CC of Gpr56 -/- mice compared with controls. The asterisks represent significance based on unpaired t -test. P =0.0153; n =3 per genotype. ( g ) The percentage of Ki67 + in the total BrdU + cell population was quantified in the CC of Gpr56 -/- mice compared with the Gpr56 +/+ controls. The asterisks represent significance based on unpaired t -test. P =0.0289; n =4 per genotype. ( h ) Western blot depicting CDK2 protein level in actually isolated OPCs from Gpr56 +/+ and Gpr56 -/- P6 mice. ( i ) The relative CDK2 protein levels were shown. The asterisk
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- Figure 2--figure supplement 1. Ki-67 expression is restricted to proliferating cells by APC/C-Cdh1. Top, IHC staining of Ki-67 and BrdU in sagittal section of embryo heart (E18.5) of Fzr1 (+/Delta) ;Sox2-Cre and Fzr1 (-/Delta) ;Sox2-Cre mice. Scale bar, 500 um. Bottom, IHC staining of Ki-67 and BrdU in sagittal section of embryo lung (E18.5) of Fzr1 (+/Delta) ;Sox2-Cre and Fzr1 (-/Delta) ;Sox2-Cre mice. Scale bar, 200 um. DOI: http://dx.doi.org/
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- Figure 2. Maintenance of Ki-67 expression in quiescent cells in vivo by Cdh1 mutation. ( A ) Immunofluorescence analysis of Ki-67 in MEF cells isolated from embryo (E13.5) of Fzr1 (+/Delta); Sox2 -Cre and Fzr1(-/Delta); Sox2 -Cre mice. Scale bar, 25 um. ( B ) IHC staining of Ki-67 and BrdU in sagittal sections of embryo cerebellum (E18.5) of Fzr1 (+/Delta); Sox2 -Cre and Fzr1 (-/Delta); Sox2 -Cre mice. Bars, 200 um. Bars in zoom, 50 um. DOI: http://dx.doi.org/ Figure 2--figure supplement 1. Ki-67 expression is restricted to proliferating cells by APC/C-Cdh1. Top, IHC staining of Ki-67 and BrdU in sagittal section of embryo heart (E18.5) of Fzr1 (+/Delta) ;Sox2-Cre and Fzr1 (-/Delta) ;Sox2-Cre mice. Scale bar, 500 um. Bottom, IHC staining of Ki-67 and BrdU in sagittal section of embryo lung (E18.5) of Fzr1 (+/Delta) ;Sox2-Cre and Fzr1 (-/Delta) ;Sox2-Cre mice. Scale bar, 200 um. DOI: http://dx.doi.org/
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- Figure 3--figure supplement 4. Background Ki-67 levels in Ki-67 mutant mice. Immunoblotting of Ki-67 and cyclin A on protein preparations of intestinal epithelium from Mki67 +/+ (+/+), heterozygous Mki67 +/21nt (+/21nt) and homozygous Mki67 21nt/21nt (21nt/21nt) mice. DOI: http://dx.doi.org/
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- Figure 3--figure supplement 9. Ki-67-mutant NIH-3T3 cells proliferate normally. ( A ) Left, analysis of the indicated protein levels by Western blotting in NIH 3T3 WT clone 4 (W4) and Ki-67 mutant clones 14, 21 and 38. LC, loading control. ( B ) Left, growth curves of NIH 3T3 WT clone W4 and Ki-67 mutant clones 14, 21 and 38. NIH 3T3 WT and mutant cells were counted every day for 4 days. Right, cell cycle distribution of the WT clone W4 and 14, 21, 38 Ki67 mutant clones as analysed by FACS. ( C ) qRT-PCR analysis of Ki-67 mRNA in NIH 3T3 WT clone W4 and NIH Ki-67 mutant clones 14, 21 and 38. Normalized by mRNA expression of B2m (beta-2-microglobulin). DOI: http://dx.doi.org/
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- Figure 3. Mouse development with a mutated Ki-67 gene. ( A ) Table describing Ki-67 mutant mouse lines resulting from germline transmission of mutations generated by cytoplasmic injection of TALEN-encoding mRNA into zygotes. ( B ) Macroscopic appearance of littermate female mice at 10 weeks of age. Genotypes are specified. ( C ) IHC staining of Ki-67 in sagittal section of intestine from Mki67 WT/WT , Mki67 WT/2nt and Mki67 2nt/2nt mice. ( D ) Western blots of Ki-67 and cyclin A expression from intestine isolated from Mki67 WT/WT , Mki67 WT/2nt and Mki67 2nt/2nt mice. LC, loading control. ( E ) Western blot of Ki-67 in MEFs from WT, Mki67 WT/2nt and Mki67 2nt/2nt mice. LC, loading control. ( F ) Flow cytometry profiles in WT, Mki67 WT/2nt and Mki67 2nt/2nt MEFs showing EdU incorporation upon a 1 hr pulse and DNA content. DOI: http://dx.doi.org/ Figure 3--figure supplement 1. Ki-67 mutant mice develop normally. ( A ) Pair of TALE-nucleases designed to target the initiator ATG of mouse Mki67 gene. ( B ) Sequencing traces of initiator ATG (underlined) of Mki67 gene in WT Mki67 +/+ (WT/WT), heterozygous Mki67 +/2nt (WT/2nt) and homozygous Mki67 2nt/2nt (2nt/2nt) mice. ( C ) Sequencing traces of initiator ATG (underlined) of Mki67 gene in WT Mki67 +/+ (WT/WT), heterozygous Mki67 +/21nt (WT/21nt) and homozygous Mki67 21nt/21nt (21nt/21nt) mice. ( D ) WT Mki67 +/+ (+/+), heterozygous Mki67 +/21nt (+/21nt) and homozygous Mki67 21nt/21nt (21nt/21nt) mice. DOI: http://dx.doi.org/ Figur
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- Figure 4. Cell proliferation without Ki-67. ( A ) Schematic representation of strategy for TALEN-mediated generation of Mki67 allele. ( B ) qRT-PCR analysis of Ki-67 mRNA levels in NIH-3T3 WT clone W4 and Ki-67-negative 60, 65, 99 clones. ( C ) Top: Western blot of Ki-67 and Cyclin A in NIH-3T3 WT clone W4 and Ki-67-negative mutant clones 60, 65, 99; LC, loading control; below, Ki-67 immunofluorescence; bar, 10 um. ( D ) Left, growth curves of WT and Ki-67 cell lines 60, 65 and 99; right, cell cycle distribution analysed by flow cytometry. ( E ) Cell cycle length of WT clone W4 and Ki-67 clones 60 and 65 as determined by time-lapse videomicroscopy. ( F ) Cells of clone 65 show altered chromosomal periphery in mitosis. The Ki-67 staining is deliberately overexposed to demonstrate absence of detectable Ki-67 in clone 65, even in metaphase. Bar, 5 um. DOI: http://dx.doi.org/ Figure 4--figure supplement 1. Generation of NIH-3T3 cells lacking Ki-67. Top, schematic representation of the wild type (WT), knock-out or eGFP knock-in Mki67 locus and the predicted insertion of tandem repeats of the eGFP insert upstream of Mki67 locus. Bottom, Southern-blot of two NIH-3T3 WT clones (WT, W4) and six NIH-3T3 Ki-67 mutant clones (60,63,65,82,99). Clones were digested with PstI or SphI and probed with 5' or 3' probe, respectively. DOI: http://dx.doi.org/
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- Figure 5--figure supplement 1. Cells lacking Ki-67 proliferate efficiently. ( A ) Schematic presentation of generation of Ki-67 shRNA knockdown BJ-hTERT. ( B ) Left, Western blot for indicated proteins upon cell cycle re-entry in serum starved hTERT-transformed BJ fibroblasts (BJ-hTERT) after induction of shRNA against Ki-67 (+) or GAPDH control (-). LC, loading control. Right, DNA synthesis analysed by flow cytometry after EdU pulse. ( C ) Left, asynchronous BJ-hTERT with doxycyclin-induced control or Ki-67 shRNA-expression were additionally transfected with control or Ki-67 siRNA for 48 hr. Protein levels were analysed by Western blotting. LC, loading control. Right, cell cycle distribution by flow cytometry. DOI: http://dx.doi.org/
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- Figure 5--figure supplement 2. Cells lacking Ki-67 proliferate efficiently. ( A ) Schematic presentation of generation of Ki-67 shRNA knockdown cell lines. ( B ) Top: Western blot analysis of the indicated proteins in asynchronously growing U2OS and HeLa cells stably expressing non-targeting (CTRL) or Ki-67 shRNA. Lanes separated by lines were from a single exposure of a single SDS-PAGE gel and Western blot. LC, loading control. Middle: Cell cycle distribution of these cells. Bottom: qRT-PCR analysis of the indicated mRNA levels, normalized by mRNA expression of beta-2-microglobulin ( B2m ). ( C ) Immunofluorescence of Ki-67 and EdU in asynchronous U2OS cells stably expressing control or Ki-67 shRNA, incubated with 5-ethynyl-2'-deoxyuridine (EdU) for 3 hr. Bar, 10 um. Right: Ratio of EdU-positive cells to the total cell number for each incubation time; ns: not significant. DOI: http://dx.doi.org/
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- Figure 5. Cells lacking Ki-67 enter the cell cycle efficiently. ( A ) Top, re-entry of cell cycle in NIH-3T3 WT clone W4 and Ki-67-negative mutant clones 60 and 65 after serum starvation-induced cell cycle arrest. Progression of cell cycle entry analysed by FACS using EdU staining. Bottom, quantification of cell cycle phases in this experiment. ( B ) Western blot analysis of Ki-67 (upper panel) and cyclin A2 (lower panel) upon cell cycle entry. LC, loading control. DOI: http://dx.doi.org/ Figure 5--figure supplement 1. Cells lacking Ki-67 proliferate efficiently. ( A ) Schematic presentation of generation of Ki-67 shRNA knockdown BJ-hTERT. ( B ) Left, Western blot for indicated proteins upon cell cycle re-entry in serum starved hTERT-transformed BJ fibroblasts (BJ-hTERT) after induction of shRNA against Ki-67 (+) or GAPDH control (-). LC, loading control. Right, DNA synthesis analysed by flow cytometry after EdU pulse. ( C ) Left, asynchronous BJ-hTERT with doxycyclin-induced control or Ki-67 shRNA-expression were additionally transfected with control or Ki-67 siRNA for 48 hr. Protein levels were analysed by Western blotting. LC, loading control. Right, cell cycle distribution by flow cytometry. DOI: http://dx.doi.org/ Figure 5--figure supplement 2. Cells lacking Ki-67 proliferate efficiently. ( A ) Schematic presentation of generation of Ki-67 shRNA knockdown cell lines. ( B ) Top: Western blot analysis of the indicated proteins in asynchronously growing U2OS and HeLa cells
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- Figure 6--figure supplement 1. The Ki-67 interactome. Western blot of Ki-67 in nuclear extracts from cells expressing FLAG-tagged versions of Ki-67 or a control unrelated protein, or FLAG alone. IP: immunoprecipitation; S/N: supernatant; P: pellet. Bottom, loading control. DOI: http://dx.doi.org/
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- Figure 7--figure supplement 3. Depletion of Ki-67 does not affect overall nucleolar structure. ( A ) Histograms showing the level of Ki-67 mRNA remaining in the cell lines expressing constitutively the shRNA against Ki-67. These levels were assessed by RT-qPCR using two different pairs of primers. Right, the Western-blot against Ki-67 shows a disappearance of a bands in the cell lines constitutively expressing the shRNA against Ki-67. ( B ) Immuno-fluorescence against Ki-67 in control HeLa and U20S cell lines in the absence (control) or in the presence (Ki-67) of the shRNA targeting Ki-67 mRNA. The PES1 signal shows that the nucleolar structure is maintained. Objective 100 x. Scale bar: 5 mum. DOI: http://dx.doi.org/
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- Fig. 3 Pharmacological inhibition of DDR1 activation protects animals against NTS-induced crescentic glomerulonephritis. a Quantitative RT-PCR for Ddr1 mRNA on whole kidney lysate of control mice (Control) and mice injected with nephrotoxic serum and treated with vehicle (vehicle). b Representative Ddr1 in situ hybridization (ISH) performed on tissue harvested from mice 14 days after NTS injection. * = crescent c representative DDR1 ISH double labelling with alpha smooth muscle actin (Acta2) or EGF-like module-containing mucin-like hormone receptor-like 1 (Emr-1) in control mice (Control) and mice injected with nephrotoxic serum and treated with vehicle (Vehicle). Arrows = cells labeled with Acta2 or Emr-1. d - g Body weight evolution (day 1, 4, 7 and 14) and renal function parameters ( e - g blood urea nitrogen (BUN), serum creatinine and proteinuria) measured at sacrifice (day 14). h Representative histopathology with Hematoxylin and Eosin (H&E) and Periodic Acid Schiff staining (PAS) and immunohistochemistry for desmin, CD44, Collagen type IV and Ki67. i Glomerular or tubulo-interstitial (TI) summary scores from semiquantitative histopathologic evaluation on H&E and PAS stained kidney sections respectively. j Morphometry analysis of collagen IV IHC. Statistically significant p value: p < 0.05 = *; p < 0.005 = **. Magnification x200, scale bar 100 mum
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- Figure 7 Source of increased cardiac M2-like macrophages by IL-4c treatment. ( a ) Viable heart slices were cultured with IL-4 (IL-4 group) or without IL-4 (PBS group) and subjected to immunolabeling for CD206 and Ki67 with DAPI nuclear staining. White arrows indicate CD206 + Ki67 + DAPI + cells. The numbers of CD206 + and Ki67 + ratios in CD206 + cells were shown in the graphs. N = 5 different hearts in each group. * P < 0.05 versus PBS group. ( b ) Two days after intraperitoneally injection of IL-4c or PBS (control) into normal mice, the hearts were subjected to labeling for CD206, Ki67 and DAPI. White arrows indicate CD206 + Ki67 + DAPI + cells. The numbers of CD206 + and Ki67 + ratios in CD206 + cells were counted and shown in the graphs. N = 5 hearts in each group. * P < 0.05 versus PBS group. ( c ) IL-4c or PBS was injected at 20 minutes after coronary artery ligation. At Day 1, the heart was subjected to immunofluorescence for CD206 with DAPI nuclear staining. The numbers of CD206 + cells were shown in the graphs. N = 5 hearts in each group.
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- Figure 1 Tfr Cells Are Present at Reduced Numbers in Cxcr5 fl/fl Foxp3 cre-yfp Mice Mice were immunized with NP-KLH/alum i.p., and the GC response was analyzed 14 days after immunization. (A) Histogram of CXCR5 expression in Foxp3 + CD4 + Treg cells, naive T cells as a CXCR5-negative control population, and wild-type B cells as a CXCR5-positive population. (B) CXCR5 mean fluorescence intensity (MFI; geometric mean) in Foxp3 + CD4 + Treg cells from mice of the indicated genotypes. (C) Analysis of Tfr and Tfh cells 14 days after influenza A virus (HKx31) infection in Cxcr5 fl/fl Foxp3 cre mice and Cxcr5 +/+ Foxp3 cre controls. Representative confocal images of splenic cryosections stained for Foxp3 (magenta), Ki67 (blue), CD3 (green), and IgD (orange); Foxp3 + cells are indicated by arrows. Scale bar, 40 mum. (D) Average GC size in square micrometers measured as the IgD - Ki67 + area. Each dot represents the average size of 2-6 GCs per mouse. (E) Quantification of the average number of Tfr cells per mouse, defined as CD3 + Foxp3 + cells within the GC, per 5,000 mum 2 . Each dot represents the average number of Tfr cells per 5,000 mum 2 of GC area per mouse, from 2-6 GCs. (F) Representative flow cytometry contour plots of CXCR5 + PD-1 + Tfh cells from Foxp3 - CD4 + cells. (G and H) Quantification of the (G) frequency and (H) absolute number of CXCR5 + PD-1 + Tfh cells. (I) Representative flow cytometry contour plots of Bcl6 + PD-1 + Tfh cells of Foxp3 - CD4 + cells. (J and K) Qu
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- Figure 2 Fewer Tfr Cells Are Present in the GC of Cxcr5 fl/fl Foxp3 cre-ERT2 Mice (A-C) Histogram (A), quantification (B). and dot plots (C) of CXCR5 expression on Foxp3 + CD4 + Treg cells in mesenteric lymph nodes three weeks after initiating the tamoxifen diet, before immunization, in Cxcr5 fl/fl Foxp3 cre-ERT2 and Cxcr5 +/+ Foxp3 cre-ERT2 mice. A fluorescence minus one (FMO) control serves as a negative control, and B220 + B cells serve as a CXCR5-positive population. (D-M) Mice were immunized with NP-KLH/alum s.c., and the GC response was analyzed in draining lymph nodes 14 days after immunization. (D) Representative flow cytometry contour plots of PD-1 + Bcl6 + cells within Foxp3 + CD4 + cells (Tfr cells). (E and F) Quantification of the (E) percentage and (F) absolute number of Bcl6 + PD-1 + Tfr cells. (G) Cryosections from iLNs were stained for Foxp3 (magenta), Ki67 (blue), CD3 (green), and IgD (orange). Scale bar, 100 mum. Representative confocal image of the GC, with Tfr cells and Tfh cells indicated by the arrows. (H) Quantification of the median number of Tfr cells, defined as CD3 + Foxp3 + , per 5,000 mum 2 of GC area. (I) Quantification of confocal images of the median number of CD3 + Foxp3 + Tfr cells per GC per mouse. (J) Quantification of the median number of Tfr cells per 10 Tfh cells, defined as Foxp3 - CD3 + . (K) Quantification of the median number of Treg cells, defined as CD3 + Foxp3 + , per 5,000 mum 2 of IgD + B cell follicle area. (L and M) CXCR4 MFI
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- Figure 4 Cxcr5 fl/fl Cd4 cre/+ Mice Have an Intact GC Response after Influenza Infection Analysis of the GC response in Cxcr5 fl/fl Cd4 cre/+ mice 14 days after influenza A virus (HKx31) infection. (A) Representative histogram of CXCR5 expression in Foxp3 + CD4 + Treg cells and B220 + B cells. (B) Quantification of the MFI (geometric mean) of CXCR5 in Foxp3 + CD4 + Treg cells. (C) Representative histogram of CXCR5 expression in Foxp3 - CD4 + T cells and B220 + B cells. (D) Quantification of the MFI (geometric mean) of CXCR5 in Foxp3 - CD4 + T cells. (E) Flow cytometry contour plots of GC B cells, gated as Bcl6 + Ki67 + cells of B220 + cells. (F and G) Quantification of the (F) frequency and (G) absolute number of Bcl6 + Ki67 + B cells. (H and I) Quantification of the (H) percentage and (I) number of Bcl6 + PD-1 + Foxp3 - CD4 + Tfh cells. (J and K) Quantification of the (J) percentage and (K) number of Bcl6 + PD-1 + Foxp3 + CD4 + Tfr cells. (L) Cryosections were stained for Foxp3 (magenta), Ki67 (blue), CD3 (green), and IgD (orange). Scale bar, 100 mum. Representative confocal image of the GC, with Tfr cells and Tfh cells indicated by the arrows. (M) Quantification of the median number of Tfr cells, defined as CD3 + Foxp3 + cells, per 5,000 mum 2 . (N) Quantification of the median number of Tfh cells, defined as CD3 + Foxp3 - cells, per 5,000 mum 2 . Each symbol represents one mouse, the horizontal bars represent mean values, and the error bars show the SD. The p values were d
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- Figure 1 Ectopic lymphoid structures in progressive MS are characterized by infiltration of lymphocytes, FDCs and plasma cells. (A) Parenchyma of FFPE sections of brain and spinal cord of progressive MS patients were screened for infiltrated regions by H&E staining. (B) IF staining for CD3 + T cells and CD20 + B cells on serial sections were used to determine the infiltration score. Score 0, no or
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- Figure 3 Follicle-like structures of SPMS brains are devoid of FOXP3 expression, but exhibit NFATc1 + cells. (A) Representative meningeal follicle-like structure of SPMS spinal cord, which was screened based on H&E staining and characterized by >60 lymphocytes (score 3), detection of Ki67 + , CD35 + /CD21 + , and CD138 + cells on serial sections, termed F+. F-, if no or not all criteria were fulfilled. (B) Follicle-like structures could be characterized by CXCR5 + , (C) but not by FOXP3 + cells. (D) NFATc1 + cells were present in follicle-like structures. (E) IHC stainings of Ki67, CD35, CD21, BCL-6, CXCR5, and NFATc1 were quantified as frequency of total cells in follicle-like structures (F+) and less defined infiltrates (F-). Ki67 : F-, M = 1.52, SD = 3.73, n = 45; F+, M = 1.89, SD = 3.55, n = 38; Mann Whitney test, U = 734.0, p = 0.161. CD35 : F-, M = 15.41, SD = 22.95, n = 22; F+, M = 19.05, SD = 14.75, n = 21; Mann Whitney test, U = 159.0, p = 0.081. CD21 : F-, M = 5.68, SD = 10.63, n = 21; F+, M = 3.51, SD = 5.60, n = 20; Mann Whitney test, U = 183.5, p = 0.488. BCL-6 : F-, M = 0.32, SD = 1.08, n = 44; F+, M = 0.49, SD = 1.62, n = 38; Mann Whitney test, U = 803.0, p = 0.642. CXCR5 : F-, M = 14.72, SD = 17.24, n = 30; F+, M = 20.11, SD = 15.73, n = 29; Mann Whitney test, U = 319.0, p = 0.080. NFATc1 : F-, M = 7.15, SD = 11.68, n = 28; F+, M = 16.36, SD = 21.46, n = 31; Mann Whitney test, U = 307.0, p = 0.043. Scale bars A-D indicate 100 mum. *, p < 0.05.
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- Figure 1 Anti-commensal IgG Is Associated with the Magnitude of Intestinal Inflammation (A) Analysis of human Ig heavy-chain gene transcripts in healthy and UC colonic biopsies. Data were derived from Gene Expression Omnibus (GEO) dataset GEO: GSE9452 . (B) IgG- and IgA1- and IgA2-bound SYBR green hi microbes in UC and household healthy control (HHC) stool samples were analyzed as household pairs (n = 6 per group). (C) Correlation of pooled IgG- and IgA1- and IgA2-bound bacterial levels with clinical activity index (CAI) (n = 12). (D) Murine colon luminal IgG and IgA levels following two cycles of DSS administration (cDSS) and normalized to total protein content (n = 10 per group). Medians are indicated. (E) Quantification of IgG-bound bacteria in stool after a single acute course of 6-day 2% DSS administration (aDSS) or H 2 O with (red) and without (black) paired serum pre-incubation (n = 6-9 per group). Medians are indicated. (F) Correlation of IgG-bound commensals (no serum) from pooled control and colitic mice at day 21 after aDSS with markers of colonic inflammation; length and neutrophil count (n = 20) are shown. In (D)-(F), data are pooled from two independent experiments. (G) Opsonization of commensal bacterial species with day 21 aDSS serum or healthy control serum (day 0) (n = 5 per group). Medians are indicated. Data are representative of two independent experiments. (H) Confocal image of control or inflamed colons from cDSS-treated mice (red, IgG; green, Ki67; whi
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- Figure 3 Ruxolitinib attenuates tumorigenesis of autochthonous K-RAS-driven lung AC. ( a ) Left panel: representative pictures of hematoxylin and eosin stained lung sections of vehicle control (ctrl) or ruxolitinib (Ruxo) treated K - ras G12D (K) mice ( n = 7 per group) and K - ras G12D : p53 fl/fl (KP) mice ( n = 8 per group). Treatment was started 1 week post tumor initiation, and continued for 10 weeks, with ruxolitinib being administered at 90 mg/kg body weight, seven times per week, BID (scale bars: 400 mum). Right panel: quantitation of hematoxylin and eosin stained lung sections from K mice (upper) and KP-mice (lower) treated with ctrl or Ruxo started 1 week post tumor initiation and continued for 10 weeks. ( b ) Graph depicts tumor numbers per section stratified by tumor grades. Per mouse, one section was analyzed ( n = 8 mice per group). ( c ) Left panel: representative pictures of immunohistochemical stainings for KI67 positive cells of lungs stemming from ctrl and Ruxo treated K and KP mice. Right panel: quantitation of indicated stainings. ( d ) Left panel: cleaved caspase-3 positive cells of lungs of ctrl and Ruxo treated K and KP mice. Right panel: quantitation of indicated stainings (scale bars: 50 mum). ( c , d ) Mann-Whitney U -test, * p < 0.05, ** p < 0.01, *** p < 0.001. Others: Student's t -test. * p < 0.05, ** p < 0.01, *** p < 0.001. For all graphs data presented as means +- SEM. [Color figure can be viewed at http://wileyonlinelib
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- Fig. 2 sTREM2 promotes microgliosis in 5xFAD mice and microglial migration. a The hippocampus was dissected from vehicle- or sTREM2-injected 5xFAD mice. After RNA extraction, the relative mRNA levels of Iba1 and GFAP in the hippocampus shown as a bar graph were determined by quantitative real-time PCR. beta-actin was used as an internal control ( n = 4 mice per group, paired Student's t test). b Iba1 and GFAP proteins were analyzed by Western blotting 7 days after sTREM2 injection to the hippocampus of 5xFAD mice. c Quantitation of the protein levels of Iba1 and GFAP in b ( n = 4 mice per group, paired Student's t test). d Coronal sections from injected 5xFAD mice were stained with DAPI (blue) for nuclei, Ki67 (green) for proliferating cells, and Iba1 (red) for microglia. Representative z-stack images of the hippocampus regions are shown. Original magnification x20; scale bar, 100 mum. Images on the right represent enlarged Ki67-positive cells with a scale bar equal to 20 mum. e Quantitation of the number of Iba1-positive cells in d ( n = 5 mice, 22 fields of each group for analysis, paired Student's t test). f Quantitation of the number of proliferating microglial cells, as indicated by the co-staining of Ki67 and Iba1 (Iba1 + Ki67 + ) ( n = 5 mice, 22 fields of each group for analysis, paired Student's t test). g Primary microglial cells (10 5 ) from WT mice were plated onto transwell chamber inserts. Following 24-h incubation with vehicle (PBS
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- Fig. 6 SORLA expression correlates with HER2 and promotes tumorigenesis in bladder carcinoma. a Immunohistochemical staining of a bladder cancer TMA and correlation analyses of SORLA and HER2 levels. Numbers indicate staining intensity, 0 = negative, 1 = weak, 2 = moderate, 3 = high. b Western blot analysis of SORLA levels in siCTRL and siSORLA (siSORLA#3, siSORLA#4) 5637 bladder cancer cells. GAPDH is a loading control. c Analysis of siCTRL and siSORLA (siSORLA#3, siSORLA#4) 5637 cell proliferation (mean +- s.d; n = 4 independent experiments; statistical analysis: two-way ANOVA). d Analysis of tumour growth of subcutaneously injected 5637 cells, with transient SORLA (siSORLA #3) or scramble (siCTRL) silencing, at day 29 in nude mice ( n = 9 siCTRL and 10 siSORLA mice; statistical analysis: unpaired Student's t test). e Ki-67 and TUNEL staining of tumour samples prepared as described in d and quantifications displayed as box plots ( n = 9 siCTRL and 10 siSORLA mice; statistical analysis: Mann-Whitney test). f Colony formation assay with SORLA-silenced and control-silenced 5637 cells treated with different concentrations of ebastine for 7 days. Quantification of confluency was performed using ImageJ Colony Area Plug-in 49 . Results are shown as mean +- s.d. ( n = 4 independent experiments; statistical analysis: unpaired Students t test). Scale bars: 200 um ( a ), 500 um ( e ). Box plots represent median and IQR and whiskers extend to maximum and minimum
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- Fig. 7 Blebbistatin inhibits ex vivo alveologenesis. H&E stained sections from P3 PCLS at 0 and 72 h, cultured with DMSO control (top panels) or 50 muM blebbistatin (bottom panels) ( a ). Scale bar = 100 um. Mean linear intercept (Lm) ( b ) and airspace count ( c ) obtained from H&E sections of P3 PCLS treated with DMSO control or 50 muM blebbistatin at 0 and 72 h, n = 3 independent experiments using 3 separate mice, 3 H&E sections from each PCLS from each mouse were quantified per group, per experiment, each dot represents per field count ( b , c ); *** p < 0.001, ns = not significant, one-way ANOVA with Tukey's post hoc test. Confocal single plane z-stack images of DMSO control (top panels) and 50 uM blebbistatin (bottom panels) P3 PCLS at 0 and 72 h culture, immunostained with Ki67 (red), Sp-C (green) and DAPI (blue) ( d ). Scale bar = 50 um. Quantification of Ki67 and Sp-C +ve cells in control and blebbistatin-treated P3 PCLS at 0 and 72 h culture ( e ), n = 3 independent experiments using 3 separate mice, with duplicate slices per group per experiment. Two fields were quantified per slice. Each dot represents mean value of per field counts per experiment; ** p < 0.01; *** p < 0,001; ns = not significant; one-way ANOVA with Tukey's post hoc test. Quantification of Ki67 +ve cells in DMSO control and blebbistatin-treated P3 PCLS at 0 and 24 h in culture ( f ), n = 3 independent experiments using 3 separate mice, with duplicate slices per group, per experiment. Two
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- Figure 4. Increased cell cycle reentry of airway basal cells in CCR2 -/- airways following resolution of influenza virus infection. Representative immunostaining of murine tracheal epithelium of C57BL/6 and CCR2 -/- mice, for Ki67 (green), Krt5 (red), and nuclei (blue) at 14 d after H1N1/PR8 influenza A infection. Two representative images are shown for each mouse strain at 14 d after influenza virus infection. All images were obtained using 20x objective lens with scale bars, 50 um.
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- Figure 8. Proliferation of Axl-expressing basal cells is correlated with the abundance of apoptotic cells in small airways of patients with COPD. (A) Immunostaining of human small airway epithelium for P63 (a basal cell marker, green) and Axl (magenta) in control never-smokers (CNS), control ex-smokers (CES), and ex-smokers with COPD. Yellow arrows or white arrowheads indicate Axl + /TP63 + cells or Axl - /TP63 + cells, respectively. Dotted lines show basement membranes. (B and C) Quantification of the number of Axl-expressing TP63 + basal cells/um airway (B) and the percentage of Axl-expressing TP63 + basal cells to total TP63 + basal cells (C) in CNS, CES, and COPD. (D) Correlation between Axl + /TP63 + cell number/um airway and airflow limitation detected as forced expiratory volume in 1 s (FEV 1 , %pred). (E) Immunostaining for Ki67 (red), TP63 (green), and Axl (magenta) in small airways of COPD lung tissues. Yellow arrows indicate Ki67 + /Axl + /TP63 + cells. Dotted lines show basement membranes. (F) The increase in the Ki67-expressing Axl + /TP63 + basal cells in COPD compared with CNS and CES. (G) Immunohistochemistry of cleaved caspase 3 (cCasp3, brown, arrows) in bronchiolar epithelium of human lung tissues from CNS, CES, and COPD. Nuclei (purple) were visualized by hematoxylin. (H) Quantification of cCasp3-positive area/um of airways. (I) Correlation between cCasp3-positive area/um of airways and FEV 1 , %pred. (J and K) cCasp3 positivity is
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- Figure 6 Single-Cell RNA Sequencing Analysis Suggests Early Fate Restriction and Ductal Origin of Progenitors (A and B) (A) t-SNE plot obtained from combining 516 single cells from pancreas obtained from n = 7 mice (n = 5 embryos at E13.25 and n = 2 embryos at E15.25) showing ductal, islet and early (E13.25) and late (E15.25) acinar clusters, as identified by the expression of marker genes shown in (B), Neurog3 (upper left ), Ptf1a (upper right and Figures S7 B and S7C), and Sox9 (lower left and Figures S7 D and S7E). Lower right of (B) shows MKi67 proliferation marker expression, showing evidence of segregation of the ductal cluster. Cell color indicates log transformed normalised read counts. Note that clusters of islet and ductal cells overlap at the two time points. (C) Diffusion pseudo-time plot reveals evidence of lineage segregation with ductal cells at the apex of a hierarchy that branches separately into acinar and islet lineages. (D) Expression levels of pancreas genes for individual cells at E13.25 and E15.25. (E) 7-mum-thick pancreatic section immunostained for Sox9, Cpa1, and Ki67 expression reveals molecular heterogeneity within ductal termini, with Ki67+ cells showing reciprocal expression of Sox9 and Cpa1 (blue and red arrows) as well as some cells positive for both markers (yellow arrows), and Sox9+ Ki67-high cells in the trunk areas (white arrows). See also Figure S7 .
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- Extended Data Figure 4 Analysis of tumors from Msi KP f/f C mice ( a ) Msi2 (green) and Keratin (red) immunofluorescent staining was performed on tissue sections from WT pancreas (Normal, n=3 samples), KRAS G12D/+ ;Ptf1a Cre/+ (PanIN, n=2 samples), and KRAS G12D/+ ;p53 f/f ;Ptf1a Cre/+ (PDAC, n=3 samples) mice with quantification of Msi2 fluorescence in Keratin positive cells. ( b ) Average weights of WT-KP f/f C (n=13) and Msi1 -/- -KP f/f C tumors (n=9). See also Figure 2h-i . for tumor volume analysis ( c ) PAS and Alcian Blue stained sections of pancreata isolated from WT-KP f/f C represent areas used to identify the stages of PanINs (yellow boxes) and adenocarcinoma (red box). ( d ) Tumors from 11-13 week old WT-KP f/f C (n=6), Msi1 -/- -KP f/f C (n=3), and Msi2 -/- -KP f/f C (n=3) mice were stained and quantified for percent of Keratin+ tumor cells (red) expressing Ki67 (green); DAPI staining is shown in blue. ( e ) Average weights of WT-KP f/f C (n=5) and Msi2 -/- -KP f/f C tumors (n=7). See also Figure 2h-I for tumor volume analysis. Data are represented as mean +- SEM. * P < 0.05, ** P < 0.01 , *** P < 0.001 by Student's t-test or One-way ANOVA. Source Data for all panels are available online.
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- 6 FIGURE Down-regulation of the inwardly rectifying K ir 4.1 channel in a fraction of proliferating non-juxtavascular astrocytes and juxtavascular astrocytes. (a-f) Confocal maximum z-projections (optical sections 1-27) of a lesioned hemisphere 5 dpi (P51). The four upper pictures show from left to right and up to down Aldh1l1-eGFP expressing astrocytes (a), K ir 4.1 staining (b), blood vessels and activated microglia visualized with TL 649 (c), and the proliferation marker Ki67 (d). (e) The left lower picture shows an overlay of Aldh1l1-eGFP positive astrocytes coded in green and the blood vessels and activated microglial cells in red. (f) The overlay shows Aldh1l1-eGFP-positive astrocytes (green), K ir 4.1 (red), and Ki67-positive nuclei (blue). Arrows indicate non-juxtavascular and juxtavascular non-proliferating astrocytes immunopositive for K ir 4.1. The dashed double arrows point to non-juxtavascular and juxtavascular astrocytes that are double positive for K ir 4.1 and Ki67. Proliferative (Ki67-positive), but K ir 4.1-negative astrocytes are marked with an asterisk. The dashed circle indicates the astrocytic domain of two proliferating astrocytes that are negative for K ir 4.1. Scale bar: 38 mum. (g) Ki67-positive non-juxtavascular and juxtavascular astrocytes were counted in five lesioned Aldh1l1-eGFP mice (P51-65) at 5 dpi. The majority of the proliferative astrocytes were K ir 4.1-postive. The difference between the two subclasses of astrocytes was a more pronounced
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- Figure 4 SARS-CoV-2 Infection Induces Loss of Surfactants and AT2 Death (A) Schematic for SARS-CoV-2-GFP infection in human alveolospheres. Alveolospheres were cultured in SFFF medium, infected with SARS-CoV-2 virus, and collected for histological analysis. (B) Quantification of the percentage of SARS-CoV-2-infected alveolospheres. (C) Immunostaining for GFP (green), SFTPC (red), and SARS (gray) (top panel) and GFP (green) and SFTPB (red) (bottom panel) in control, ""low,"" and ""high"" SARS-CoV-2-GFP-infected human lung alveolospheres at 72 h post-infection. Scale bar: 50 mum. (D) Quantification of low-infected (1-10 SARS-CoV-2 + cells) and high-infected (10 or more SARS-CoV-2 + cells) alveolospheres. (E) Quantification of SFTPC + cells in uninfected control and SARS - and SARS + cells in virus-infected alveolospheres. (F) Immunostaining for GFP (green) in combination with the apoptotic marker active caspase 3 (red) and proliferation marker Ki67 (gray) in control and SARS-CoV-2-GFP-infected alveolospheres. Scale bar: 30 mum. (G and H) Quantification of active caspase-3 (CASP3) + (G) and Ki67 + (H) cells in uninfected control (gray), SARS-CoV-2 - cells (blue), and SARS-CoV-2 + cells in infected alveolospheres. The white box in the merged image indicates the region of single-channel images. DAPI stains nuclei (blue). All quantification data are presented as mean +- SEM.
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- Figure 6 IFN Treatment Recapitulates Features of SARS-CoV-2 Infection Including Cell Death and Loss of Surfactants in Alveolosphere-Derived AT2s (A) Schematic of experimental design. Human lung alveolospheres were treated with IFNalpha, IFNbeta or IFNgamma for 72 h. (B) Representative images of control and IFNalpha-, IFNbeta-, and IFNgamma-treated human lung alveolospheres. (C) Immunostaining for active-caspase-3 (green), HTII-280 (red), and SOX2 (gray) in control and IFN-treated alveolospheres. DAPI stains nuclei (blue). Scale bar: 30 mum. (D) Quantification of active caspase-3 + cells in total DAPI + (per alveolosphere) cells in control and IFN-treated human alveolospheres. (E) Immunostaining for SFTPB (green), Ki67 (red), and AGER (gray) in controls and IFNalpha-, IFNbeta-, or IFNgamma-treated human alveolospheres. DAPI stains nuclei (blue). Scale bar: 30 mum. (F) Quantification of Ki67 + cells in total DAPI + cells in control and IFN-treated human alveolospheres. * p < 0.05; ** p < 0.01; *** p < 0.001. (G) Schematic of IFNs or IFN inhibitor treatment followed by SARS-CoV-2 infection. (H) Viral titers in control (gray), ruxolitinib-treated (orange), IFNalpha-treated (blue), and IFNgamma-treated (green) cultures were determined by plaque assay using media collected from alveolosphere cultures at 24 and 48 h post-infection. Data are presented as mean +- SEM.
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- Figure 6 Impaired B cell responses after ChAdOx1 nCoV-19 immunization of aged mice (A and B) B cell response in 3-month-old (3mo) or 22-month-old (22mo) mice 9 days after immunization with ChAdOx1 nCoV-19 or PBS. Flow cytometric evaluation of the percentage (A) and number (B) of plasma cells in the iliac lymph node. (C) Pie charts showing the proportion of IgM + IgD - (orange) and switched IgM - IgD - (blue) plasma cells from (A) and (B). (D and E) Serum IgM (D) and IgG (E) anti-spike antibodies 9 days after immunization. (F) Pie charts showing the proportion of anti-spike IgG of the indicated subclasses in the serum 9 days after immunization. (G and H) Percentage (G) and number (H) of germinal center B cells in the iliac lymph node. (I) Pie charts showing the proportion of IgM + IgD - (orange) and switched IgM - IgD - (blue) germinal center cells from (G) and (H). (J-M) Number of T follicular helper (J) and T follicular regulatory (K) cells in the draining lymph node. Confocal images of the spleen of ChAdOx1 nCoV-19-immunized mice of the indicated ages; in (L), the scale bars represent 500 mum; in (M), the scale bars represent 50 mum. IgD + B cell follicle are in green, CD3 + T cells in magenta, Ki67 + cells in blue, and CD35 + follicular dendritic cells in white. (N and O) Percentage (N) and number (O) of splenic germinal center B cells. (P) Percentage of Ki67 + B cells in the spleen. (Q and R) Number of splenic T follicular helper (Q) and T follicular regulatory (R) cells.
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- 6 Figure TSP2 does not coexpress with proliferative marker Ki67. Transverse femoral fractures were induced in TSP2-GFP reporter mice. Femurs were harvested at days 1, 3, 5, 7, and 14 post-fracture (day 5 is shown). A, representative callus immunofluorescent stitched image of DAPI (blue), TSP2 (green), and Ki67 (red). The image was selected from a day 5 callus at a region of mixed T2GFP expression where a heterogenous population of pluripotent cells and chondrocytes are proliferating. B-E, confocal 60x z-stack images of an ROI within the callus demonstrating a TSP2+ Ki67+ (solid red arrowhead), TSP2+ Ki67- (solid white arrowhead), TSP2-Ki67+ (red arrowhead outline), and TSP2-Ki67- (white arrowhead outline) cell. In (A) is a stitched composite of individual 4x images with a 10% overlap to show the location of ROI (white box) within the callus. Scale bars is indicated for the confocal z-stack. Samples were examined under a BioTek Lionheart FX or Olympus FV1000 microscope for epi-fluorescent or confocal imaging, respectively. Representative section was selected from n = 4 to 6 femur samples per time point. ROI, region of interest; TSP2, thrombospondin-2 [Color figure can be viewed at wileyonlinelibrary.com ]