moreover , the effect of such spleen supernatant on b cell proliferation correlated with the il2 activity since its b cell growth factor activity ( bcgf ) was not greater than that of purified il2 and no residual bcgf activity could be detected after absorption of all il2 activity by the il2-dependent cytotoxic t lymphocyte line cells .
C1155008
b cell proliferation
C0021756
il2