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细胞毒性T淋巴细胞相关抗原(cytotoxic T Lymphocyte as-sociated antigen-4,CTLA-4)是淋巴细胞表面的一种与免疫信号传递有关的配体蛋白分子,属免疫球蛋白超家族成员,可以特异性结合抗原呈递细胞(APC)表面的B7分子,负调节T细胞▲广西自然科学基金项目(桂科基0161005)、广西卫
Cytotoxic T Lymphocyte as-associated antigen-4 (CTLA-4) is a kind of ligand protein molecule on the surface of lymphocyte that is related to the immune signaling. It belongs to the immunoglobulin superfamily and can be specific B7 molecules on the surface of antigen-presenting cells (APCs) negatively regulate T cells ▲ Guangxi Natural Science Foundation Project (Gui Keji 0161005), Guangxi Wei