a tumor-promoting phorbol ester , 12-o-tetradecanoyl-phorbol 13-acetate ( tpa ) , at a concentration of 25 ng/ml , caused 4-fold increases in pge and 6-keto-pgf1 alpha accumulation at 5 h .
C0031586
phorbol ester
C0039654
12-o-tetradecanoyl-phorbol 13-acetate