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  • Title: [Effect of platinum derivatives on microsomal NADPH-oxidoreductase activity].
    Author: Shchepetkin IA, Plotnikov VM, Kagiia VT.
    Journal: Vopr Med Khim; 2001; 47(4):373-81. PubMed ID: 11693025.
    Abstract:
    The influence of platinum derivatives, cisplatin (cis-diamminedichloroplatinum) and imidazolplatin (cis-diimidazoledichloroplatinum) on the activity of rat liver microsomal NADPH-oxidoreductases was investigated in vitro using spectrophotometrical and chemiluminometrical methods. In the range of concentrations from 1 to 12 microM cisplatin inhibited NADPH-cytochrome c-reductase activity and NADPH/lucigenin-dependent chemiluminescence of microsomes. The 3 microM cisplatin decreased the NADPH-dependent reductase activity by 50%. At concentrations less than 2.5 mM sanazole (drug AK-2123) did not prevent the inhibiting influence of cisplatin on microsomal NADPH-dependent reductases. Imidazolplatin insignificantly inhibited NADPH-reductases. It is concluded that negligible inhibiting effect of imidazolplatin on microsomal NADPH-oxidoreductase allows us to consider this platinum derivative as a promising compound for further experimental trials as anticancer drug with low toxic action on the normal tissues of an organism.
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