12-o-tetradecanoylphorbol-13-acetate ( tpa ) , a skin tumor-promoting phorbol ester , and teleocidin and aplysiatoxin , which are potent tumor promoters in mouse skin but are chemically unrelated to phorbol esters , induced change of cultured rabbit costal chondrocytes from a polygonal to a fibroblastic shape and inhibited glycosaminoglycan ( gag ) synthesis and metachromatic matrix formation in these cells .
C0039654
12-o-tetradecanoylphorbol-13-acetate
C0031586
phorbol esters