TEELS CORECEPTOR CD8 T CELL CD8 ANTIGEN- NONSPECIFIC SIGNAL ACTIVATION #1 TCR RECEPTOR PEPTIDE- SPECIFIC "ARMED CO-STIMULA TOR SIGNAL EFFECTOR ANTIGEN /B7 #2 NONSPECIFIC Tk CELL CD28 Naive“ unactivated CD8 T cell becomes ACTIVATED2021年2月5日星期五9 时17分11秒