proliferation of normal ( not immunized intentionally ) murine spleen cells was elicited with concanavalin a , supernatant fluid from cultures of el-4 cells , human recombinant interleukin 2 ( il-2 ) , or a mixture of phorbol ester and calcium ionophore a23187 .
C0086418
human
C0021756
recombinant interleukin 2