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程序性死亡受体PD-1
PD-1与CTLA-4、CD28和KIRs的结构具有相似性,人们因此猜测PD-1的配体可能是B7或MHC I家族成员。在2000年和2001年,Honjo和Freeman先后发现了PD-1与PD-L1(CD274 ...
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