Title : Association of protein kinase C activation with induction of ornithine decarboxylase in murine but not human keratinocyte cultures.

Pub. Date : 1993

PMID : 8352882






2 Functional Relationships(s)
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1 The goal of this study was to compare the response of mouse epidermal keratinocytes (MEKs) and human epidermal keratinocytes (HEKs) to 12-O-tetradecanoylphorbol-13-acetate (TPA) with respect to the activation and downregulation of protein kinase C (PKC), the expression of c-jun and c-fos, and the expression and induction of ornithine decarboxylase (ODC) activity. Tetradecanoylphorbol Acetate Jun proto-oncogene, AP-1 transcription factor subunit Homo sapiens
2 After treatment with TPA, MEK cultures produced a large induction of both c-jun and c-fos mRNA by 60 min, as determined by northern blot analysis, and a large induction of ODC mRNA and enzyme activity by 6 h. TPA treatment of cultured HEKs, however, did not induce ODC activity; in fact, less activity, compared with that of control cultures, was observed. Tetradecanoylphorbol Acetate Jun proto-oncogene, AP-1 transcription factor subunit Homo sapiens