Induction of ornithine decarboxylase in normal and protein kinase C--depleted human colon carcinoma cells.


To examine the role of protein kinase C (PKC) in induction of human colon adenocarcinoma cell line, DETA/W, by polypeptide growth-promoting factors, ornithine decarboxylase activity (ODC) and DNA synthesis were determined in cells depleted of PKC. PKC depletion was achieved by prolonged cultivation (more than 30 passages) with 10(-6) M phorbol 12-myristate… (More)


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