Alterations of the glutathione cycle enzymes during and after SV40-transformation of human fibroblasts
1993
The activities of several enzymes involved in the antioxidant system of the cell were studied in parallel to cytogenetic alterations at various times after SV40 infection and transformation of human fibroblasts. At early passages after SV40 infection, glutathione reductase (GSR), glutathione peroxidase (GPX), glutathione transferase (GST) and glucose-6-phosphate dehydrogenase (G6PD) activities were decreased. This, associated with the low superoxide dismutase (SOD) and catalase activities previously noticed in these cells, suggested that they are in a highly pro-oxidant status
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