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Lucigenin Luminescence Elicited by Microsomes and Its Modulation by Nitroazole Compounds
Author(s) -
Schepetkin I. A.
Publication year - 1999
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1080/713803559
Subject(s) - lucigenin , chemistry , microsome , dioxetane , cytochrome , photochemistry , luminescence , superoxide , heme , nad+ kinase , biochemistry , chemiluminescence , enzyme , organic chemistry , materials science , optoelectronics
The lucigenin luminescence elicited by rat liver microsomes and its modulation by the nitroazole compounds metronidazole and sanazole (drug AK‐2123), as well as the rates of lucigenindependent NADPH consumption and cytochrome c reduction, were studied. The obtained data suggest that the luminescence can be the result of univalent lucigenin reduction by microsomal NAD(P)Hreductases, generation of superoxide anion radical in the redox cycle of lucigenin radicals, dioxetane formation by (di)oxygenases, and catalytic action of cytochrome P450 heme on dioxetane decomposition, followed by light emission.