in nih3t3 cells stably transfected with the human c-fos gene , serum , platelet derived growth factor ( pdgf ) , phorbol ester ( 12-o-tetradecanoyl-phorbol-13-acetate , tpa ) , ultraviolet irradiation ( uv ) and 3'-5'-cyclic adenosine monophosphate ( camp ) cause a transient and rapid activation of both the endogenous and the transfected c-fos genes .
C0031586
phorbol ester
C0039654
12-o-tetradecanoyl-phorbol-13-acetate