因此,机体进化出了一些“刹车机制”,来平衡免疫系统,防止它使出“洪荒之力”。 CTLA4和PD1,这俩存在于免疫细胞上的蛋白,就是这样的“刹车 ...
Interestingly, CTLA-4 knockout mice and mice that lack expression of CTLA-4 just in T REG develop fatal, early-onset lymphoproliferative disease. 1,4 In addition, expression and signaling of CTLA ...