منابع مشابه
Emergence of oxyl radicals as selective oxidants.
Hydroxyl radicals (HO*) are derived in Fenton reaction with ferrous salt and H2O2 in acid medium, and at neutral pH, metal-oxyl radicals (M-O*) predominate. Evidence is accumulating that M-O* radicals are also active in oxidation reactions, in addition to metal-oxo (M=O) now shown in many publications. Reactivity of these radicals gives selective oxidized products useful in cellular activities,...
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We present the argument that the majority of low-molecular-weight organic compounds made and secreted by microbes play roles as cell-signalling molecules in the environment. Of the large number of compounds isolated to date, only a small fraction have been shown to possess useful therapeutic antibiotic activity. However, most microbial metabolites modulate gene transcription at low concentratio...
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Resveratrol derivatives bearing an O-linked mitochondria-targeting 4-triphenylphosphoniumbutyl group at either position 3 or position 4' are prooxidant and cytotoxic for cultured cells, selectively killing fast-growing cells when supplied in the low μM range. Resveratrol is essentially without effect under these experimental conditions, while the cytotoxicity of the mitochondriotropic derivativ...
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متن کاملRole for mitochondrial oxidants as regulators of cellular metabolism.
Leakage of mitochondrial oxidants contributes to a variety of harmful conditions ranging from neurodegenerative diseases to cellular senescence. We describe here, however, a physiological and heretofore unrecognized role for mitochondrial oxidant release. Mitochondrial metabolism of pyruvate is demonstrated to activate the c-Jun N-terminal kinase (JNK). This metabolite-induced rise in cytosolic...
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ژورنال
عنوان ژورنال: Lab Animal
سال: 2018
ISSN: 0093-7355,1548-4475
DOI: 10.1038/s41684-018-0059-y