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  • Title: Induction of cytochrome(s) P450-dependent drug metabolism in cultured MH1C1 hepatoma cells.
    Author: Ferro M, Bassi AM, Marinari UM, Nanni G, Chiarpotto E, Poli G, Dianzani MU.
    Journal: Cell Biochem Funct; 1984 Oct; 2(4):263-8. PubMed ID: 6518625.
    Abstract:
    A cell line derived from a Morris hepatoma, MH1C1, was examined for its in vitro expression of monooxygenases. These cells were found to contain different forms of cytochrome P450, as shown by the response to inducers, namely phenobarbital (PB), 3-methylcholanthrene (MC) and metyrapone (MP). MH1C1 cell monolayers exposed to PB or MC showed an increase in the concentration of two spectrally distinct forms of cytochrome P450. The PB and MC treatments elicited enzyme activities towards the substrates aminopyrine and benzo(a)pyrene, respectively. The cell treatment with metyrapone led to a simultaneous stimulation of aminopyrine demethylase and benzo(a)pyrene hydroxylase activities, so underlining the peculiar features of this inducer.
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