CD8 antibody | 38.65
Mouse anti Sheep CD8 antibody, clone 38.65 used for the detection of CD8 expressing lymphocytes in ovine Peyer's patch and jejenum by flow cytometry and immunofluorescence.
Image caption:
CD8+ lymphocyte increase in the jejunum and jejunal Peyer's patches. (A) Cells isolated from jejunal Peyer's patches (JPP) and jejunum were double labelled with anti CD8 and NCR1 mAbs and analyzed by flow cytometry. The plots show data from a 6 dpi inoculated lamb and its 7 day-old matched control and are representative of 8 matched pairs of 7 day-old lambs. The gating used for the analyses shown in B is indicated with the corresponding colors. (B) The percentages of the 3 different populations of CD8+ lymphocytes corresponding to the 3 gates shown in (A) were analyzed in jejunum and JPP from lambs 2–6 dpi. Control lambs (open symbols), inoculated lambs (filled symbols). The means are indicated in red. The comparisons were made with the Mann–Whitney (control/inoculated) and Wilcoxon tests (paired data). Statistically significant differences are indicated with * p < 0.05, ** p < 0.01, *** p < 0.001. (C-D) Section of an ileal Peyer's patch (IPP) from a 7 day old control (C) and a 6 dpi lamb (D) were double labelled with anti CD8 (green) and Ki-67 (blue) antibodies. The images shown are obtained by merging these images with the white light image. The double positive cells (arrow) display CD8 cytoplasmic staining and Ki67 nuclear staining. Pinpoint sized spots (arrowhead) are identified as autofluorescence. Dome (d), lamina propria (lp). Bar 50 μm.
From: Olsen et al. "The early intestinal immune response in experimental neonatal ovine cryptosporidiosis is characterized by an increased frequency of perforin expressing NCR1+ NK cells and by NCR1− CD8+ cell recruitment".
Vet Res 2015 46:28.
This image is from an open access article distributed under the terms of the Creative Commons Attribution License.
Mouse anti Sheep CD8 antibody, clone 38.65 used for the detection of CD8 expressing lymphocytes in ovine Peyer's patch and jejenum by immunofluorescence.
Image caption:
Significant increase of CD8+ cells in the ileum of infected lambs. Ileal Peyer's patches sections from a pair of 6 day-old matched lambs, control (A) and inoculated (B), were labelled with Ab against CD3 (red), CD8 (green) and γδTCR (blue). Increased numbers of yellow CD3+/CD8+ cells (arrow) in the lamina propria (lp) and dome (d) were seen in the inoculated animals compared with the controls. Few or no CD3+/CD8+/γδTCR+ cells were observed. Light blue dots (arrowhead) were identified as autofluorescence and thus differentiated from the specific labelling which was localised in the cell membrane. Absorptive epithelium (ae), follicle-associated epithelium (fae), follicle (f), interfollicular area (ifa). Bar 50 μm. (C) The increase of CD3+/CD8+ cells in the ileal Peyer's patch was demonstrated by quantitative analysis of positive cells per mm2 in villi and dome, including the covering epithelium. The graphs show the median with 95% confidence interval constructed using the Bernoulli-Wilcoxon procedure. Statistically significant differences are indicated as ** p < 0.01 and *** p < 0.001.
From: Olsen et al.
The early intestinal immune response in experimental neonatal ovine cryptosporidiosis is characterized by an increased frequency of perforin expressing NCR1+ NK cells and by NCR1− CD8+ cell recruitment.
Veterinary Research 2015 46:28.
This image is from an open access article distributed under the terms of the Creative Commons Attribution License.
Mouse anti Sheep CD8 antibody, clone 38.65 used for the detection of CD8 expressing lymphocytes in ovine jejenum by flow cytometry.
Image caption:
Perforin+ lymphocytes among CD8+ lymphocytes in the gut.(A) Cells extracted from gut tissues were double labelled with anti NCR1 and CD8 mAbs then fixed and permeabilized and labelled with an anti perforin mAb. The plot shows (example of jejunum at 6 dpi) the gating of the lymphocyte populations analyzed. (B) Lymphocytes from an inoculated lamb (3 dpi) and its control were gated either on the CD8+/NCR1+ or the CD8tot/NCR1- populations then analyzed for the perforin content. The red line limited histogram corresponds to the inoculated lamb (In), the black line limited histogram to its matched control (Co) and the gray filled histogram to the isotype control of the perforin mAb (iso) and the mean fluorescence intensity (MFI) is indicated for each histogram. (C) The analysis of the perforin expression by CD8+ lymphocyte sub-populations (gates shown on Figure 7A) was performed in 3 control and 4 age-matched 6 dpi inoculated lambs. The comparisons were made with the Mann–Whitney (control/inoculated) and Wilcoxon tests (paired data). Statistically significant differences are indicated with ** p < 0.01 and *** p < 0.001.
From: Olsen et al. "The early intestinal immune response in experimental neonatal ovine cryptosporidiosis is characterized by an increased frequency of perforin expressing NCR1+ NK cells and by NCR1− CD8+ cell recruitment".
Vet Res 2015 46:28.
This image is from an open access article distributed under the terms of the Creative Commons Attribution License.
Mouse anti Sheep CD8 antibody, clone 38.65 used for the detection of CD8 expressing lymphocytes in ovine jejenum by flow cytometry.
Image caption:
Expression of CD25 on small intestinal NCR1+ and CD8+ lymphocytes. (A) The expression of the activation marker CD25 was analyzed at 6 dpi in the populations gated as indicated. The individual percentages (B) and the mean fluorescence intensity (MFI) of CD25+ cells (C) are shown for the 3 populations. Medians are shown with red bars. Control lambs (open symbols), inoculated lambs (filled symbols). In C, the results of the two experiments are shown with red or black symbols. The comparisons were made with the Mann–Whitney (control/inoculated) and Wilcoxon tests (paired data). Statistically significant differences are indicated with ** p < 0.01 and *** p < 0.001.
From: Olsen et al. "The early intestinal immune response in experimental neonatal ovine cryptosporidiosis is characterized by an increased frequency of perforin expressing NCR1+ NK cells and by NCR1− CD8+ cell recruitment".
Veterinary Research 2015 46:28.
This image is from an open access article distributed under the terms of the Creative Commons Attribution License.
Mouse anti Bovine CD8 antibody, clone 38.65 (MCA2216GA) used to demonstrate the presence of CD8 expressing T cells in ovine placenta during gestation by immunohistochemistry on cryostat sections.
Image caption:
Comparison of the immunohistochemical labeling of T inflammatory cells and parasite antigen in the placenta. This panel compares the distribution and frequency of T lymphocytes (CD3, CD4 and CD8 antigens) and parasite antigen immunohistochemically labeled in samples from the three groups. Pictures showing the labeling of T cells (first three rows) were taken at 75× and those of the parasite antigen (last row) were taken at 150×. F: foetal mesenchyme, M: maternal endometrial stalk.
From: Arranz-Solís D, Benavides J, Regidor-Cerrillo J, Horcajo P, Castaño P, Del Carmen Ferreras M, Jiménez-Pelayo L, Collantes-Fernández E, Ferre I, Hemphill A, Pérez V, Ortega-Mora LM.
Systemic and local immune responses in sheep after Neospora caninum experimental infection at early, mid and late gestation.
Vet Res. 2016 Jan 6;47(1):2.
This image is from an open access article distributed under the terms of the Creative Commons Attribution License.
Mouse anti Sheep CD8 antibody, clone 38.65 (MCA2216) used to identify CD8 expressing lymphocytes from sheep peripheral blood by flow cytometry
Image caption:
Cells were collected and stained with anti-CD4/CD8 antibodies after being fixed and permeabilized. Data were acquired by flow cytometry.
Gating strategy for flow cytometry. Data are presented as means.
From: Yang J, Lv Y, Zhu Y, Li S, Tao J, Chang L, Zhu M, Zhao J, Wang Y, Wu C, Zhao W.
Baseline T-lymphocyte and cytokine indices in sheep peripheral blood.
BMC Vet Res. 2022 May 5;18(1):165.
doi: 10.1186/s12917-022-03268-7.
This image is from an open access article distributed under terms of a Creative Commons Attribution License.
Mouse anti Sheep CD8 antibody, clone 38.65 (MCA2216) used to identify CD8 expressing lymphocytes from sheep peripheral blood by flow cytometry
Image caption:
Cells were collected and stained with anti-CD4/CD8 antibodies and intracellular cytokine antibodies after being fixed and permeabilized. Data were acquired by flow cytometry.
Gating strategy for flow cytometry. Data are presented as means.
From: Yang J, Lv Y, Zhu Y, Li S, Tao J, Chang L, Zhu M, Zhao J, Wang Y, Wu C, Zhao W.
Baseline T-lymphocyte and cytokine indices in sheep peripheral blood.
BMC Vet Res. 2022 May 5;18(1):165.
doi: 10.1186/s12917-022-03268-7.
This image is from an open access article distributed under terms of a Creative Commons Attribution License.
Mouse anti Sheep CD8 antibody, clone 44.38 (MCA2216GA) used to label CD8 expressing sheep lymphocytes by flow cytometry.
Image caption:
CD4+ and CD8+ T cells in PBMCs. Peripheral blood samples were collected at different immunization times, and CD4+ and CD8+ T cells in PBMCs were analyzed using flow cytometry. (A) Proportion of CD4+ and CD8+ T cells in PBMCs of each group at week 8. (B, C) show the trend of the proportion of CD4+ and CD8+ T cells at different times, respectively. (D) The ratio of CD4+ to CD8+ T cells in each group of PBMCs at week 8. (E) The trend of the ratio of CD4+ to CD8+ T cells at different times. Data were obtained from 9 sheep, and results are presented as mean ± SD (ns, P> 0.05).
From: Yang J, Zhao Y, Fu Y, Lv Y, Zhu Y, Zhu M, Zhao J, Wang Y, Wu C, Zhao W.
Recombinant antigen P29 of Echinococcus granulosus induces Th1, Tc1, and Th17 cell immune responses in sheep.
Front Immunol. 2023 Dec 11;14:1243204.
doi: 10.3389/fimmu.2023.1243204.
This image is from an open access article distributed under terms of a Creative Commons Attribution License.
Mouse anti Sheep CD8:RPE
- Product Type
- Monoclonal Antibody
- Clone
- 38.65
- Isotype
- IgG2a
- Specificity
- CD8
Antibody Quality and Performance Guarantee
| Mouse anti Sheep CD8 antibody, clone 38.65 recognizes the ovine CD8 cell surface antigen, which is expressed by the cytotoxic/suppressor subset of T lymphocytes. Under reducing conditions, the antigens immunoprecipitated by Mouse anti Sheep CD8 antibody, clone 38.65 migrate at ~33 kDa and ~36 kDa. |
- Target Species
- Sheep
- Species Cross-Reactivity
-
Target Species Cross Reactivity Bovine Goat - N.B. Antibody reactivity and working conditions may vary between species.
- Product Form
- Purified IgG conjugated to R. Phycoerythrin (RPE) - lyophilized
- Reconstitution
- Reconstitute with 1 ml distilled water
- Preparation
- Purified IgG prepared by affinity chromatography on Protein A from tissue culture supernatant
- Buffer Solution
- Phosphate buffered saline
- Preservative Stabilisers
- 0.09% sodium azide (NaN3)
1% bovine serum albumin
5% sucrose - Immunogen
- Ovine efferent lymphocytes.
- Fusion Partners
- Spleen cells from immunised BALB/c mice were fused with cells of the mouse NS-1 myeloma cell line.
- Max Ex/Em
-
Fluorophore Excitation Max (nm) Emission Max (nm) RPE 488nm laser 496 578 - Regulatory
- For research purposes only
- Guarantee
- 12 months from date of despatch
Prior to reconstitution store at +4°C. Following reconstitution store at +4°C.
DO NOT FREEZE.
This product should be stored undiluted. This product is photosensitive and should be protected from light. Should this product contain a precipitate we recommend microcentrifugation before use.
DO NOT FREEZE.
This product should be stored undiluted. This product is photosensitive and should be protected from light. Should this product contain a precipitate we recommend microcentrifugation before use.
This product has been reported to work in the following applications. This information is derived from testing within our laboratories, peer-reviewed publications or personal communications from the originators. Please refer to references indicated for further information. For general protocol recommendations, please visit the antibody protocols page.
| Application Name | Verified | Min Dilution | Max Dilution |
|---|---|---|---|
| Flow Cytometry |  |
Neat | 1/10 |
Where this product has not been tested for use in a particular technique this does not necessarily exclude its use in such procedures. Suggested working dilutions are given as a guide only. It is recommended that the user titrates the product for use in their own system using appropriate negative/positive controls.
- Flow Cytometry
- Use 10μl of the suggested working dilution to label 106 cells in 100μl
How to Use the Spectraviewer
Watch the Tool Tutorial Video ▸- Start by selecting the application you are interested in, with the option to select an instrument from the drop down menu or create a customized instrument
- Select the fluorophores or fluorescent proteins you want to include in your panel to check compatibility
- Select the lasers and filters you wish to include
- Select combined or multi-laser view to visualize the spectra
| Description | Product Code | Applications | Pack Size | List Price | Your Price | Quantity | |
|---|---|---|---|---|---|---|---|
| Mouse IgG2a Negative Control:RPE | MCA929PE | F | 100 Tests | Log in | |||
| List Price | Your Price | ||||||
| Log in | |||||||
| Description | Mouse IgG2a Negative Control:RPE | ||||||
References for CD8 antibody
-
Maddox, J.F. et al. (1985) Surface antigens, SBU-T4 and SBU-T8, of sheep T lymphocyte subsets defined by monoclonal antibodies.
Immunology. 55 (4): 739-48. -
Mackay, C.R. et al. (1986) Three distinct subpopulations of sheep T lymphocytes.
Eur J Immunol. 16 (1): 19-25. -
Mackay, C.R. et al. (1986) Thymocyte subpopulations during early fetal development in sheep.
J Immunol. 136 (5): 1592-9. -
Mackay, C.R. et al. (1987) A monoclonal antibody to the p220 component of sheep LCA identifies B cells and a unique lymphocyte subset.
Cell Immunol. 110 (1): 46-55. -
Mackay, C.R. et al. (1989) Gamma/delta T cells express a unique surface molecule appearing late during thymic development.
Eur J Immunol. 19 (8): 1477-83. -
Bruce, C.J. et al. (1999) Depletion of bovine CD8+ T cells with chCC63, a chimaeric mouse-bovine antibody.
Vet Immunol Immunopathol. 71 (3-4): 215-31. -
Chan, S.S. et al. (2002) Generation and characterization of ovine dendritic cells derived from peripheral blood monocytes.
Immunology. 107: 366-72. -
Lybeck, K.R. et al. (2009) Neutralization of interleukin-10 from CD14(+) monocytes enhances gamma interferon production in peripheral blood mononuclear cells from Mycobacterium avium subsp. paratuberculosis-infected goats.
Clin Vaccine Immunol. 16 (7): 1003-11.
View The Latest Product References
-
Lybeck, K.R. et al. (2009) Neutralization of interleukin-10 from CD14(+) monocytes enhances gamma interferon production in peripheral blood mononuclear cells from Mycobacterium avium subsp. paratuberculosis-infected goats.
Clin Vaccine Immunol. 16: 1003-11. -
Breugelmans, S. et al. (2010) Immunoassay of lymphocyte subsets in ovine palatine tonsils.
Acta Histochem. 113(4):416-22 -
Elhmouzi-Younes, J. et al. (2010) Ovine CD16+/CD14- blood lymphocytes present all the major characteristics of natural killer cells.
Vet Res. 41: 4. -
Kallapur, S.G. et al. (2011) Pulmonary and Systemic Inflammatory Responses to Intraamniotic IL-1 alpha in fetal sheep.
Am J Physiol Lung Cell Mol Physiol. 301(3):L285-95 -
Lybeck, K.R. et al. (2012) Intestinal Strictures, Fibrous Adhesions and High Local Interleukin-10 Levels in Goats Infected Naturally with Mycobacterium avium subsp. paratuberculosis.
J Comp Pathol. 148: 157-72. -
Nfon, C.K.et al (2012) Innate Immune Response to Rift Valley Fever Virus in Goats.
PLoS Negl Trop Dis.6 (4): e1623. -
Olsen, L. et al. (2015) The early intestinal immune response in experimental neonatal ovine cryptosporidiosis is characterized by an increased frequency of perforin expressing NCR1(+) NK cells and by NCR1(-) CD8(+) cell recruitment.
Vet Res. 46: 28. -
Goh, S. et al. (2016) Identification of Theileria lestoquardi Antigens Recognized by CD8+ T Cells.
PLoS One. 11 (9): e0162571. -
Arranz-Solís, D. et al. (2016) Systemic and local immune responses in sheep after Neospora caninum experimental infection at early, mid and late gestation.
Vet Res. 47: 2. -
Ramos, A. et al. (2018) Melatonin enhances responsiveness to Dichelobacter nodosus vaccine in sheep and increases peripheral blood CD4 T lymphocytes and IgG-expressing B lymphocytes.
Vet Immunol Immunopathol. 206: 1-8. -
Curina, G. et al. (2018) Evaluation of immune responses in mice and sheep inoculated with a live attenuated Brucella melitensis. REV1 vaccine produced in bioreactor.
Vet Immunol Immunopathol. 198: 44-53. -
Baliu-piqué, M. et al. (2019) Age-related distribution and dynamics of T-cells in blood and lymphoid tissues of goats.
Dev Comp Immunol. 93: 1-10. -
Wooldridge, A.L. et al. (2019) Maternal allergic asthma during pregnancy alters fetal lung and immune development in sheep: potential mechanisms for programming asthma and allergy.
J Physiol. 597 (16): 4251-62. -
Schwarz, E.R. et al. (2020) Experimental Infection of Mid-Gestation Pregnant Female and Intact Male Sheep with Zika Virus.
Viruses. 12 (3)Mar 07 [Epub ahead of print]. -
Zhang, H. et al. (2020) Thiamine ameliorates inflammation of the ruminal epithelium of Saanen goats suffering from subacute ruminal acidosis.
J Dairy Sci. 103 (2): 1931-43. -
Ducournau, C. et al. (2020) Effective Nanoparticle-Based Nasal Vaccine Against Latent and Congenital Toxoplasmosis in Sheep.
Front Immunol. 11: 2183. -
Yang, J. et al. (2022) Baseline T-lymphocyte and cytokine indices in sheep peripheral blood.
BMC Vet Res. 18 (1): 165. -
Yang, J. et al. (2023) Recombinant antigen P29 of Echinococcus granulosus induces Th1, Tc1, and Th17 cell immune responses in sheep.
Front Immunol. 14: 1243204.
- RRID
- AB_566897
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