a selected clone from an il-2-dependent human t-cell line was persistently propagated in the presence of phorbol esters with the ability to activate protein kinase c ( pkc ) , such as 12-o-tetradecanoylphorbol-13-acetate ( tpa ) or phorbol-12,13-dibutylate ( pdbu ) .
C0031586
phorbol esters
C0039654
12-o-tetradecanoylphorbol-13-acetate