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[20] [7] This conversion is illustrated by the reduction of peroxides (via the sulfenate as an intermediate): GSH + R 2 O 2 GSOR + ROH GSOR + GSH GSSG + ROH Net reaction: 2 GSH + R 2 O 2 GSSG + 2 ROH (R = H, alkyl) and with free radicals, forming glutathionyl radicals (GS ) that may dimerize to disulfide: GSH + R RH + GS 1/2 GSSG Thiyl radicals (such as glutathionyl radicals) are themselves oxidizing species in biology, with a single-electron reduction potential sufficient for oxidation of nucleic acids, proteins and polyunsaturated lipids
Cancers with higher GSH levels were more likely to survive vascular endothelial-induced oxidative and nitrosative stress and metastasize at different sites [60]
Cell Cycle 10 (24), 42304236
The cell produces free radicals as a byproduct of the chemical events that take place within it
The relationship between GT and chemotherapy resistance is demonstrated by a number of experiments showing that transfection with GT both in vitro and in vivo leads to resistance to members of the platinum drug family, and in particular to cisplatin (Hanigan et al., 1999b
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