a tumor-promoting phorbol ester , 12-o-tetradecanoyl-phorbol 13-acetate ( tpa ) , acted synergistically with a ca2+ ionophore a23187 or phytohemagglutinin ( pha ) to induce a high level of il2 mrna in lymphocytes , whereas each of them by itself could not induce the mrna production .
C0031586
phorbol ester
C0039654
12-o-tetradecanoyl-phorbol 13-acetate