产品信息
荧光素标记
FITC
抗原名称
CD8a
宿主
Mouse BALB/c IgG2a, κ
免疫原
dd miniature swine thymocytes
简单描述
The 76-2-11 (also known as clone PT8) monoclonal antibody specifically binds to an epitope on the CD8α chain, a 35-kDa antigen expressed on thymocytes, peripheral T lymphocytes, and NK cells. The CD8 molecule can exist as a 70 kDa homodimer, composed of α chains, or heterodimer, composed of an α and β chain. Cells which express the CD8αα homodimer display dimmer staining with mAb 76-2-11 than CDαβ-expressing cells. The 76-2-11 mAb does not cross-react with human or bovine cells. Two peripheral CD8+ T-cell populations can be distinguished in the pig: CD8-bright CD4- CTL effectors/precursors and CD8-dull CD4+ T-helper lymphocytes. Pig NK cells express CD8 (dull staining), CD2, MHC class II, LFA-1, and asialo-GM1, but not CD3, CD4, CD5, or CD6. mAb 76-2-11 has been reported to partially inhibit
in vitro
cytotoxic activity of PBL to allogeneic leukocytes, but not NK-cell-mediated lysis, and to deplete CD8+ T cells
in vivo
. This clone was clustered as anti-CD8a at the First International Swine CD workshop.
商品描述
76-2-11
The 76-2-11 (also known as clone PT8) monoclonal antibody specifically binds to an epitope on the CD8α chain, a 35-kDa antigen expressed on thymocytes, peripheral T lymphocytes, and NK cells. The CD8 molecule can exist as a 70 kDa homodimer, composed of α chains, or heterodimer, composed of an α and β chain. Cells which express the CD8αα homodimer display dimmer staining with mAb 76-2-11 than CDαβ-expressing cells. The 76-2-11 mAb does not cross-react with human or bovine cells. Two peripheral CD8+ T-cell populations can be distinguished in the pig: CD8-bright CD4- CTL effectors/precursors and CD8-dull CD4+ T-helper lymphocytes. Pig NK cells express CD8 (dull staining), CD2, MHC class II, LFA-1, and asialo-GM1, but not CD3, CD4, CD5, or CD6. mAb 76-2-11 has been reported to partially inhibit
in vitro
cytotoxic activity of PBL to allogeneic leukocytes, but not NK-cell-mediated lysis, and to deplete CD8+ T cells
in vivo
. This clone was clustered as anti-CD8a at the First International Swine CD workshop.
同种型
Mouse BALB/c IgG2a, κ
克隆号
克隆 76-2-11 (RUO)
浓度
0.5 mg/ml
产品详情
FITC
Fluorescein (FITC) is part of the BD blue family of dyes. This is a small organic fluorochrome with an excitation maximum (Ex Max) at 494-nm and an emission maximum (Em Max) at 518-nm. FITC is designed to be excited by the Blue laser (488-nm) and detected using an optical filter centered near 520 nm (e.g., a 530/30-nm bandpass filter). Please ensure that your instrument’s configurations (lasers and optical filters) are appropriate for this dye.
FITC
Blue 488 nm
494 nm
518 nm
应用
实验应用
Flow cytometry (Routinely Tested)
反应种属
Pig (QC Testing)
目标/特异性
CD8
制备和贮存
存储溶液
Aqueous buffered solution containing ≤0.09% sodium azide.
保存方式
Aqueous buffered solution containing ≤0.09% sodium azide.
文献
文献
研发参考(13)
1. Dato ME, Kim YB. Characterization and utilization of a monoclonal antibody inhibiting porcine natural killer cell activity for isolation of natural killer and killer cells. J Immunol. 1990; 144(11):4452-4462. (Biology).
2. Pescovitz MD, Lowman MA, Sachs DH. Expression of T-cell associated antigens by porcine natural killer cells. Immunology. 1988; 65(2):267-271. (Biology).
3. Pescovitz MD, Lunney JK, Sachs DH. Murine anti-swine T4 and T8 monoclonal antibodies: distribution and effects on proliferative and cytotoxic T cells. J Immunol. 1985; 134(1):37-44. (Clone-specific).
4. Pescovitz MD, Lunney JK, Sachs DH. Preparation and characterization of monoclonal antibodies reactive with porcine PBL. J Immunol. 1984; 133(1):368-375. (Immunogen).
5. Saalmuller A, Aasted B, Canals A, et al. Analyses of mAb reactive with porcine CD8. Vet Immunol Immunopathol. 1994; 43(1-3):249-254. (Clone-specific).
6. Saalmuller A, Hirt W, Maurer S, Weiland E. Discrimination between two subsets of porcine CD8+ cytolytic T lymphocytes by the expression of CD5 antigen. Immunology. 1994; 81(4):578-583. (Biology).
7. Saalmuller A, Pauly T, Hohlich BJ, Pfaff E. Characterization of porcine T lymphocytes and their immune response against viral antigens. J Biotechnol. 1999; 73(2-3):223-233. (Biology).
8. Saalmuller A, Werner T, Fachinger V. T-helper cells from naive to committed. Vet Immunol Immunopathol. 2002; 87(3-4):137-145. (Biology).
9. Smith CV, Sablinski T, Arn JS, et al. In vivo treatment with monoclonal antibodies directed against CD4 and CD8 antigens in miniature swine. J Immunother Emphasis Tumor Immunol. 1994; 16(2):105-114. (Biology).
10. Suzuki T, Sundt TM 3rd, Mixon A, Sachs DH. In vivo treatment with antiporcine T cell antibodies. Transplantation. 1990; 50(1):76-81. (Biology).
11. Waters WR, Hontecillas R, Sacco RE, et al. Antigen-specific proliferation of porcine CD8alphaalpha cells to an extracellular bacterial pathogen. Immunology. 2000; 101(3):333-341. (Clone-specific).
12. Zuckermann FA, Pescovitz MD, Aasted B, et al. Report on the analyses of mAb reactive with porcine CD8 for the second international swine CD workshop. Vet Immunol Immunopathol. 1998; 60(3-4):291-303. (Clone-specific).
13. Zuckermann FA. Extrathymic CD4/CD8 double positive T cells. Vet Immunol Immunopathol. 1999; 72(1-2):55-66. (Biology).
参考图片
CD8 expression on peripheral blood lymphocytes. Pig whole blood was stained with either FITC-conjugated 76-2-11 mAb (shaded histogram) or FITC-conjugated mouse Igg2a, kappa isotype control mAb G155-178 (Cat. No. 553456, open histogram). Erythrocytes were lysed (BD Pharm Lyse™ lysis buffer, Cat. No. 555899), non-viable leukocytes were excluded by staining with 7-AAD (BD Via-Probe™ cell viability dye, Cat. No. 555816/555815), and lymphocytes were gated according to scatter profile. Flow cytometry was performed on a BD FACSCalibur™ flow cytometry system.
CD8 expression on peripheral blood lymphocytes. Pig whole blood was stained with either FITC-conjugated 76-2-11 mAb (shaded histogram) or FITC-conjugated mouse Igg2a, kappa isotype control mAb G155-178 (Cat. No. 553456, open histogram). Erythrocytes were lysed (BD Pharm Lyse™ lysis buffer, Cat. No. 555899), non-viable leukocytes were excluded by staining with 7-AAD (BD Via-Probe™ cell viability dye, Cat. No. 555816/555815), and lymphocytes were gated according to scatter profile. Flow cytometry was performed on a BD FACSCalibur™ flow cytometry system.
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