we correlated the effects of retinoic acid on protein kinase c-dependent phosphorylation and differentiation stimulated by 12-o-tetradecanoylphorbol-13-acetate ( tpa ) , a phorbol ester , in the human monoblastoid u937 cell line .
C0039654
12-o-tetradecanoylphorbol-13-acetate
C0031586
phorbol ester