PD-1 Protects Bystander-Activated T Cells from Activation-Induced Cell Death

PD-1 is a critical T-cell checkpoint that suppresses nonantigen-specific bystander memory T-cell activation and proliferation but also protects them from apoptotic activation-induced cell death. Overall design: Examination of differential gene expression between PD-1+ vs PD-1- Tcells either un culutured or cultured with rhIL-2.程序性死亡受体1（PD-1）是一类关键的T细胞检查点分子，可抑制非抗原特异性旁观者记忆T细胞的活化与增殖，同时还能保护此类细胞免受凋亡性激活诱导的细胞死亡。实验设计概览：分析未培养或经重组人白细胞介素2（rhIL-2）培养的PD-1阳性与PD-1阴性T细胞之间的差异基因表达情况。