because bombesin stimulates diacylglycerol production in hit-t15 cells , we used the phorbol ester 12-o-tetradecanoylphorbol-13-acetate ( tpa ) to determine whether protein kinase c also played a role in desensitization to the peptide .
C0031586
phorbol ester
C0039654
12-o-tetradecanoylphorbol-13-acetate