14-0688-37

antibody from Invitrogen Antibodies

Targeting: CD68 DKFZp686M18236, GP110, LAMP4, macrosialin, SCARD1

Provider product page for 14-0688-37

Western blot

Immunocytochemistry

Immunoprecipitation

Immunohistochemistry

Flow cytometry

Other assay

Antibody data

Antibody Data
Antigen structure
References [23]
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Validations
Immunocytochemistry [1]
Other assay [19]

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Product number: 14-0688-37 - Provider product page
Provider: Invitrogen Antibodies
Product name: CD68 Monoclonal Antibody (KP1), eBioscience™
Antibody type: Monoclonal
Antigen: Other
Description: Description: The KP1 antibody reacts with human CD68 which belongs to the sialomucin family and is closely related to the family of lysosomal-associated membrane proteins (lamps) and scavenger receptor. CD68 is predominantly an intracellular protein, found mainly in the late endosomal compartment but can be detected in smaller amounts on the surface of mainly myeloid-derived cells; monocytes and macrophages, dendritic cells (and in some langerhan cells), neutrophils, basophils, mast cells, myeloid progenitor cells, and a subset of CD34+ hematopoietic bone marrow progenitor cells. The function has not been fully elucidated but based on homology and structure, CD68 may play a role in antigen processing or presentation and protection of the lysosomal membrane from hydrolytic enzymes. Reports have also shown expression in activated T cells, and about 40% of peripheral blood B-lymphocytes and 50% of all B-ALL. The KP1 antibody has also been reported to stain fibroblasts which may be due to a conserved epitope rather than fibroblasts expressing CD68. Applications Reported: This KP1 antibody has been reported for use in flow cytometric analysis, immunoprecipitation, western blotting, immunohistochemical staining of frozen tissue sections, and immunohistochemical staining of formalin-fixed paraffin embedded tissue sections. Applications Tested: This KP1 antibody has been tested by immunohistochemistry with both low and high pH antigen retrieval on FFPE tissue. Either antigen retrieval method can be used. This antibody can be used at less than or equal to 1 µg/mL. It is recommended that the antibody be carefully titrated for optimal performance in the assay of interest. Purity: Greater than 90%, as determined by SDS-PAGE. Aggregation: Less than 10%, as determined by HPLC. Filtration: 0.2 µm post-manufacturing filtered.
Reactivity: Human
Host: Mouse
Isotype: IgG
Antibody clone number: KP1
Vial size: 2 mg
Concentration: 0.5 mg/mL
Storage: 4° C

CD68 protein structure - 14-0688-37 shown in red.

Supportive validation

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Supportive validation

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Supportive validation

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Experimental details: NULL

Supportive validation

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Experimental details: NULL

Supportive validation

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Experimental details: NULL

Supportive validation

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Experimental details: NULL

Supportive validation

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Experimental details: NULL

Supportive validation

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Experimental details: Figure 6 Immuno-Histo-Chemistry (IHC) in 37 human adenocarcinoma samples. ( A ) Staining scored blinded by a pathologist at Pantomics, Inc. Staining > 2.8 was considered strong DUOX2 positive, score of ""0"" was considered DUOX2 negative. Percentage of strong staining and negative DUOX2 staining are indicated. ( B ) Example of heterogeneous (positive and negative) DUOX2 staining in well differentiated/low grade gastric adenocarcinoma (Malignant 1). Red arrows indicate cells expressing DUOX2. ( C ) Expanded view of inset from ( B ). ( D ) Example of strong DUOX2 staining in poorly differentiated/high grade stomach adenocarcinoma. ( E ) Intensity of CD68 staining in DUOX2 negative and positive samples. Student's t -test, *** p = 0.0005. ( F ) CD68, red arrows indicate macrophages tumor and stroma infiltration in same tissue as ( B ) expressing DUOX2. ( G ) Expanded view of inset from ( F ). ( H ) IHC in poorly differentiated/high grade stomach adenocarcinoma showing strong CD68 staining. Images dimensions are 450 x 383 pixels (W x H).

Supportive validation

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Experimental details: Figure 6. SeqStain-based multiplex imaging of whole human kidney tissue provides a 20-plex image Immunofluorescent images of whole kidney tissue sections after each round of staining with unique SeqStain antibodies (as indicated) and DAPI (as indicated in the panel). Zoomed-in sections of images are presented below each panel. A serial section stained with H&E is also presented. Scale bars, 100 mum.

Supportive validation

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Experimental details: Figure 7. SeqStain multiplex imaged panels identify major substructures in the human kidney (A) Image showing a composite overlay of aligned immunofluorescence image stack of 20 unique markers from the whole kidney tissue section. Scale bar, 100 mum. (B) Image of a zoomed-in region from the whole kidney tissue section in (A) (white square) showing various components of the kidney tissue, including the glomerular endothelial cells (GECs), proximal tubule (PT), collecting duct (CD), distal convoluted tubules (DCT), and podocytes. Scale bar, 100 mum. (C) Boxed dot plot showing computed co-expression of EpCAM and the indicated markers on a per-cell basis (mean +- SD). (D) Image of a zoomed-in region from the whole kidney tissue section in (A) (red square) showing one glomerulus (two panels), false colored for the indicated markers. Scale bar, 100 mum. (E) Representative images showing zoomed-in regions of composite overlay of aligned immunofluorescence image stacks from (A) for the identification of various immunophenotypes of cells and tissue sections based on co-localization of various markers (as labeled). Scale bar, 50 mum. (F) Boxed dot plot of cellular neighborhoods showing the computed distances of the indicated cells from glomerular basement membrane of a selected glomerulus in the kidney (mean +- SD). Glom refers to cells residing inside the glomerulus, whereas RI refers to cells residing outside the glomerulus, in the renal interstitium.

Supportive validation

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Experimental details: FIGURE 3 Loss of interleukin 6 ( Il6 ) preserves alveolar as well as elastic fibre formation, and reduces macrophage invasion in neonatal lungs after hyperoxia. a) Representative images of haematoxylin- and eosin-stained tissue sections showing alveolarisation in mice at postnatal day 28 (P28). Wildtype (WT) and Il6 knockout mice ( Il6 -/- ) were exposed to hyperoxia (HYX; 85% O 2 ) or normoxia (NOX; 21% O 2 ) from postnatal day 1 (P1) to P28. b-d) Summary data of quantitative histomorphometric analyses: radial alveolar count (b), mean linear intercept (c), average surface area of one alveolus (d). e) Representative images of Hart's-stained tissue sections showing distribution and localisation of elastic fibres in mice at P28. Arrows indicate elastic fibres at the secondary tips after hyperoxia. f-g) Summary data of quantitative analyses of elastic fibres per defined area (um 3 ) (f) and elastic fibre content relative (rel.) to lung tissue (%) (g). h) Measurement of respiratory (Resp.) system compliance using whole-body plethysmography in Il6 -/- and WT mice at P28. i-k) Assessment of the expression of genes encoding components of lung matrix, including elastic fibres. i) Collagen 1alpha1 ( Col1a1 ). j) Fibrillin 1 ( Fbn1 ). k) Fibulin5 ( Fbln5 ). l-m) Representative immunofluorescent staining of alpha-smooth muscle actin (alphaSMA) as a marker of myofibroblasts. White arrows depict positive stained cells (l); quantification data of alphaSMA + cells relative to all 4',6-diami

Supportive validation

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Experimental details: FIGURE 9 Inflammation and interleukin 6 (IL-6)/signal transducer and activator of transcription 3 (STAT3) signalling in lungs of infants with bronchopulmonary dysplasia (BPD) and non-BPD. a) Representative immunofluorescent staining for immune cells using CD45 as a marker (green) in age-matched BPD and control lungs (Co); the lung identification numbers of the infants are indicated in brackets. Immune cells (CD45 + cells) were counted in 4-12 fields of view per lung. Summary data of the quantification of immune cells (CD45 + cells) per field of view for all infants (n=6 per group). DAPI: 4',6-diamidino-2-phenylindole. b) Representative co-immunofluorescent localisation of CD68 (marker of macrophages, red) in age-matched BPD and Co lungs; white arrows are indicating CD68 + cells. The analysis of CD68 + cells per 6-12 fields of view is shown next to the images; n=6 per group. c) Representative localisation of human IL6 (h IL6 , red) in lungs with BPD and Co; white arrows are indicating h IL6 + in situ hybridisation. The analysis of h IL6 + cells per 6-12 fields of view is shown next to the images; n=6 per group. d) Representative co-immunofluorescent localisation of CD68 (marker of macrophages, red) with h IL6 (white; in situ hybridisation) in age-matched BPD and Co lungs; white arrows are indicating CD68 + and h Il6 + . The analysis of h IL6 mRNA expression per CD68 + cells per 6-12 fields of view is shown next to the images; n=6 per group. e, f) Representative immunofluoresce

Supportive validation

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Experimental details: Insulin resistance, dyslipidemia, and inflammatory markers in SAT and VAT. (A) Pearson correlations between monocytes, M1-, and M2-like macrophages and M1/M2 ratio in SAT and VAT and biochemical parameters, corrected for BMI (n=80). Size and color intensities of circles indicate correlation coefficients. Red squares indicate significant (p

Supportive validation

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Experimental details: Pathological examination of the tumors. (A) Histology indicated that the tumors consisted of spindle-shaped cells and collagen fibers, and the former were arranged in a storiform pattern and surrounded by the latter. The arrows a and b indicated the collagen fiber and cell, respectively. (H&E staining; magnification, x200). Immunohistochemistry suggested that the tumor cells were strongly positive for (B) CD68 and (C) XIIIa factor, while they were weakly positive for (D) alpha-SMA and (E) desmin. (F) The tumor cells were negative for CD34 (magnification, x200; scale bars, 100 um).

Supportive validation

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Experimental details: Pericytes mediate the migration and polarization of macrophages (A) The relative expression of macrophages and pericytes in the TME of GBM based on the ssGSEA algorithm. (B) The flow diagram of the co-culture system between macrophages and pericytes. (C) The relative RNA expression of MCAM in the NC and three siRNA target groups. (D) The protein expression of MCAM in the NC group and three siRNA target groups. (E) Transwell assay for the co-cultured pericytes. Statistical analysis of the migrated pericytes in different siRNA groups. (F)Multiplex immunofluorescence staining of M1 macrophage markers CD68, CD11c in the cocultured system between macrophages and pericytes. Statistical analysis of the positive M1 macrophages in different siRNA groups (scale bar: 25um). (G)Multiplex immunofluorescence staining of M2 macrophage markers CD68, CD163 in the cocultured system between macrophages and pericytes (scale bar: 25um). Statistical analysis of the positive M2 macrophages in different siRNA groups. Data are represented as mean +-SD.

Supportive validation

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Experimental details: Fig. 1 LRP1 expression is increased in MS lesions. a Immunohistochemistry on consecutive sections from an early active (EA) MS lesion (upper row) shows: (1) myelin (PLP) laden macrophages consistent with ongoing demyelinating activity, (2) abundant macrophage infiltration (CD68), (3) hypertrophic reactive astrocytes indicating gliosis (GFAP), and (4) LRP1 immunoreactivity present on both astrocytes (arrowhead) and macrophages (arrow and inset). In contrast, the periplaque gray matter (PPGM, lower row) shows: (1) normal appearing myelin (PLP), (2) limited microglial reactivity (CD68), (3) astrocytes with regular size and morphology (GFAP), and (4) limited LRP1 immunoreactivity. (Scale bars = 20 mum). b Luxol Fast Blue histology (LFB) and immunofluorescence for CD68 and LRP1 shows that myeloid cells express LRP1 within the lesion (Scale bar = 100 mum)

Supportive validation

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Experimental details: Fig. 6 a CD68 (macrophages, purple) and Bodipy (myelin/neutral lipids, green) immunostaining and b Oil Red O staining of human brain tissue slices acquired from the same patient used to collect the MSI data shown in c - e with several tissue regions indicated. c Ion distributions images of m / z 689.5636 ([CE(18:1)+K] + , green), m / z 726.5882 ([HexCer(d36:2)+H] + , blue) and m / z 369.3517 ([Chol+H-H 2 O] + , pink) acquired using MALDI-2 and a pixel size of 6 mum from human multiple sclerosis brain tissue. d , e Selected enlarged regions of the MSI data shown in c . f - i Single pixel spectra acquired from the regions indicated by the white arrows in c . All MSI data is visualised using the total ion current normalisation and hotspot removal (99% quantile). NAWM = normal appearing white matter

Supportive validation

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Experimental details: Figure 1 Macrophages were highly involved at the severe stage of COVID-19(A) H+E (Hematoxylin and Eosin) staining on the bronchial or alveolar region in healthy or severe COVID-19 case. Pulmonary hemorrhagic infarct (denoted by arrowheads) (B) Immunohistochemistry (IHC) using antibody against CD68 revealed macrophage with aggregated phenotype and enlarged nuclei in COVID-19 lung, compared to the ones in the healthy lung. (C) Immunofluorescence (IF) staining on healthy or COVID-19 distal lung tissues using antibodies against CD68 (pan-macrophage marker), and CD80 (M1 macrophage marker) (D) Quantification on CD68+ or CD80+ macrophages in healthy or COVID-19 distal lung tissues. (E) IF staining on healthy or COVID distal lung tissues using antibodies against CD68 and CD163 (M2 macrophage marker) (F) Quantification on CD68+ or CD163+ macrophages in healthy or COVID-19 distal lung tissues. (G) IF staining on healthy or COVID-19 distal lung tissues using antibodies against CD68 and IL-6. Scale bar = 100 mum in all images in Figure 1. Data were presented as mean +- STDEV. P values were calculated by unpaired two-tailed Student's t-test. **P < 0.01, ***P < 0.001, and ****P < 0.0001.

Supportive validation

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Experimental details: Figure 4 Double-immunofluorescent staining of CD68 and Siglec-15. CD68 staining ( A green). Siglec-15 staining ( B red). DAPI staining ( C blue). Merged images ( D ). Representative images of PCNSL peritumoral tissue with the co-expression of CD68 and Siglec-15. (magnification x 1000).