(简答题)
TNF诱导的凋亡途径是什么?
正确答案
TNF-α和TNFR-1结合后,诱导TNFR-l胞质的DD与胞内含有DD的相关分子结合即RIP(receptor interactiy protein)和TRADD(TNFR associated protein with death domain)。RIP的DD结合RAIDD(RID associated ICE-homologous protein with death domain),继而激活pro-caspase-2;TRADD的DD结合FADD,继而激活pro-caspase-8(或10),pro-caspase-2,8,10活化后,再激活下游的pro-caspase,引起靶细胞凋亡。
答案解析
略