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BD Pharmingen™ PE Mouse Anti-Rat CD8a
克隆 OX-8 (RUO)


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The expression of CD8a on rat splenocytes. Single-cell suspensions of LOU splenocytes were stained with PE-conjugated mAb OX-8 and FITC-conjugated anti-rat CD3 mAb G4.18 (Cat. No. 559975/554832). Note that the CD8a+CD3- population represents NK cells. Flow cytometry was performed on a BD FACScan™ flow cytometry system.
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BD Pharmingen™ PE Mouse Anti-Rat CD8a
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准备和存储
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- Since applications vary, each investigator should titrate the reagent to obtain optimal results.
- Please refer to www.bdbiosciences.com/us/s/resources for technical protocols.
- For fluorochrome spectra and suitable instrument settings, please refer to our Multicolor Flow Cytometry web page at www.bdbiosciences.com/colors.
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The OX-8 monoclonal antibody specifically binds to the hinge-like membrane-proximal domain of the 32 kDa α chain of the CD8 differentiation antigen. A truncated CD8 α' isoform has not been detected in the rat. The CD8 α and β chains (CD8a and CD8b, respectively) form a heterodimer on the surface of most thymocytes and a subpopulation of mature T lymphocytes (i.e., MHC class I-restricted T cells, including most T suppressor/cytotoxic cells). Intestinal intrapithelial lymphocytes, many CD8+ T cells of athymic rats, many activated CD4+ T cells, and most NK cells express CD8a without CD8b. It has been suggested that the expression of the CD8a/CD8b heterodimer is restricted to thymus-derived T lymphocytes. OX-8 antibody does not react with resting CD4+ T helper cells. CD8 is an antigen coreceptor on the T-cell surface which interacts with MHC class I molecules on antigen-presenting cells. It participates in T-cell activation through its association with the T-cell receptor complex and protein tyrosine kinase Ick. Macrophages have also been reported to express CD8 α and β chains, which are involved in signal transduction. Soluble OX-8 mAb partially blocks in vitro MLR and CTL activity.

研发参考 (15)
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Barclay AN. The localization of populations of lymphocytes defined by monoclonal antibodies in rat lymphoid tissues. J Immunol. 1981; 42(4):593-600. (Clone-specific: Immunohistochemistry). 查看参考
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Bierer BE, Sleckman BP, Ratnofsky SE, Burakoff SJ. The biologic roles of CD2, CD4, and CD8 in T-cell activation. Annu Rev Immunol. 1989; 7:579-599. (Biology). 查看参考
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Brideau RJ, Carter PB, McMaster WR, Mason DW, Williams AF. Two subsets of rat T lymphocytes defined with monoclonal antibodies.. Eur J Immunol. 1980; 10:609-615. (Immunogen: Flow cytometry). 查看参考
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Classon BJ, Brown MH, Garnett D, et al. The hinge region of the CD8 alpha chain: structure, antigenicity, and utility in expression of immunoglobulin superfamily domains. Int Immunol. 1992; 4(2):215-225. (Clone-specific). 查看参考
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Hirji N, Lin TJ, Befus AD. A novel CD8 molecule expressed by alveolar and peritoneal macrophages stimulates nitric oxide production. J Immunol. 1997; 158(4):1833-1840. (Clone-specific: Stimulation). 查看参考
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Hirji N, Lin TJ, Bissonnette E, Belosevic M, Befus AD. Mechanisms of macrophage stimulation through CD8: macrophage CD8alpha and CD8beta induce nitric oxide production and associated killing of the parasite Leishmania major. J Immunol. 1998; 160(12):6004-6011. (Clone-specific: Stimulation). 查看参考
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Janeway CA Jr. The T cell receptor as a multicomponent signalling machine: CD4/CD8 coreceptors and CD45 in T cell activation. Annu Rev Immunol. 1992; 10:645-674. (Biology). 查看参考
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Johnson P, Gagnon J, Barclay AN, Williams AF. Purification, chain separation and sequence of the MRC OX-8 antigen, a marker of rat cytotoxic T lymphocytes. EMBO J. 1985; 4(10):2539-2545. (Clone-specific: Immunoaffinity chromatography). 查看参考
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Kuhnlein P, Park JH, Herrmann T, Elbe A, Hunig T. Identification and characterization of rat gamma/delta T lymphocytes in peripheral lymphoid organs, small intestine, and skin with a monoclonal antibody to a constant determinant of the gamma/delta T cell receptor. J Immunol. 1994; 153(3):979-986. (Biology). 查看参考
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Mason DW, Arthur RP, Dallman MJ, Green JR, Spickett GP, Thomas ML. Functions of rat T-lymphocyte subsets isolated by means of monoclonal antibodies. Immunol Rev. 1983; 74:57-82. (Clone-specific: Blocking). 查看参考
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Mitnacht R, Bischof A, Torres-Nagel N, Hunig T. Opposite CD4/CD8 lineage decisions of CD4+8+ mouse and rat thymocytes to equivalent triggering signals: correlation with thymic expression of a truncated CD8 alpha chain in mice but not rats. J Immunol. 1998; 160(2):700-707. (Clone-specific: Immunoprecipitation, Western blot). 查看参考
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Scriba A, Grau V, Steiniger B. Phenotype of rat monocytes during acute kidney allograft rejection: increased expression of NKR-P1 and reduction of CD43. Scand J Immunol. 1998; 47(4):332-342. (Biology). 查看参考
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Thomas ML, Green JR. Molecular nature of the W3/25 and MRC OX-8 marker antigens for rat T lymphocytes: comparisons with mouse and human antigens. Eur J Immunol. 1983; 13(10):855-858. (Clone-specific: Immunoprecipitation). 查看参考
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Torres-Nagel N, Kraus E, Brown MH, et al. Differential thymus dependence of rat CD8 isoform expression.. Eur J Immunol. 1992; 22(11):2841-2848. (Clone-specific: Blocking, Immunoprecipitation, Western blot). 查看参考
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Wallgren AC, Karlsson-Parra A, Korsgren O. The main infiltrating cell in xenograft rejection is a CD4+ macrophage and not a T lymphocyte. Transplantation. 1995; 60(6):594-601. (Clone-specific: Immunohistochemistry). 查看参考
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