the phorbol ester 12-o-tetradecanoylphorbol 13-acetate ( tpa ) was shown to mimic luteinizing hormone ( lh ; lutropin ) in causing desensitization of lh-mediated cyclic amp production in tumour leydig cells .
C0031586
phorbol ester
C0039654
12-o-tetradecanoylphorbol 13-acetate