未活化的ＣＤ８Ｔ细胞能够被抗原和细胞因子活化，成为产生１型细胞因子ＩＦＮγ和ＩＬ２的效应细胞ＴＣ１或产生２型细胞因子ＩＬ４、ＩＬ５及ＩＬ１０的效应细胞ＴＣ２。Ｔ细胞活化的初始阶段环境中的细胞因子决定着Ｔ细胞的分化方向，但它是否还决定着体内持续存 Unactivated CD8T cells can be activated by antigens and cytokines, as a type 1 cytokine IFN γ and IL 2 effector cells TC1 or produce type 2 cytokines IL 4, IL 5 and IL 10 effector cells TC2. Cytokines in the initial T cell activation environment determine the direction of T cell differentiation, but whether it also determines the persistence of the body