testosterone production of percoll-purified leydig cells was similarly stimulated ( about 50-100 % ) by a gnrh agonist ( buserelin , maximum effect at concentration of 10 ( -9 ) mol/l and above ) and a tumor promoting phorbol ester , 12-o-tetradecanoylphorbol-13-acetate ( tpa , maximum effect at 10 ( -8 ) mol/l ) , which is known to activate pk-c .
C0031586
phorbol ester
C0039654
12-o-tetradecanoylphorbol-13-acetate