the possible role of protein kinase c ( pkc ) in the cyclic amp-dependent mechanism of action of corticotropin-releasing factor ( crf ) on proopiomelanocortin cells of anterior and intermediate pituitary glands was examined after pretreatment of cells in culture with the pkc inhibitor retinal or the phorbol ester pma , which depletes cell stores of the kinase .
C0031586
phorbol ester
C0039654
pma