this activation process is mediated by interleukin 2 ( il-2 ) and its receptor ( il-2r ) , because ( 1 ) il-2 activity was detected in the culture supernatants , ( 2 ) the percentage of il-2r positive cells increased during the culture period , with a peak on day 9 , and ( 3 ) the 10b4-induced t cell proliferation was inhibited by anti il-2r antibody .
C0021756
il-2
C1155046
t cell