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PD-L1信号在免疫应答中的作用及对T细胞的调控机制 被引量:6

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摘要 PD-L1是免疫球蛋白超家族协同刺激分子的重要成员,通过与活化T细胞表面表达的抑制性受体PD-1结合负性调节T细胞介导的免疫应答。PD-L1可在多种免疫细胞及多种肿瘤细胞中表达,广泛参与自身免疫性疾病、慢性感染和肿瘤免疫应答的调控。在多种肿瘤组织中PD-L1表达水平与患者预后等临床病理参数密切相关。肿瘤细胞异常表达PD-L1,经PD-L1/PD-1信号通路调节T细胞的功能及应答类型,导致肿瘤免疫逃逸。因此,干预PD-L1信号对多种疾病的诊断和治疗具有重要的价值。
出处 《临床检验杂志》 CAS CSCD 北大核心 2012年第6期450-452,共3页 Chinese Journal of Clinical Laboratory Science
基金 国家自然科学基金资助项目(30972703 81171653) 江苏省自然科学基金项目(BK2011246 BK2011247) 六大人才高峰第六批资金资助项目(BRA2010037) 江苏省卫生厅医学科技发展基金资助项目(P200932 P200933) 常州市社会发展计划基金资助项目(CS20092019 CS20102020)
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