1.T cells will become anergic or apoptotic , when there is antigen stimulation without costimulatory molecules.

1.仅有抗原刺激，缺乏共刺激信号的T细胞不仅不活化，反乃至凋亡。

2.Furthermore, by examining CD71 surface expression, we are able to distinguish and differentially isolate anergic and actiated T cells in io.

2.另外,通过检测CD71的胞膜表达,我们够在体内鉴别并分离与活化的T细胞.