Home Neoplasma 2003 Neoplasma Vol.50, p.443-446, 2003

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Founded: 1954
ISSN 0028-2685
ISSN 1338-4317 (online)

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Neoplasma Vol.50, p.443-446, 2003

Title: Effects of flavonoids on glutathione and glutathione-related enzymes in cisplatin-treated L1210 leukemia cells.

Abstract: Connections between the ability of quercetin (Qu)and galangin (Ga) to differentially modulate cis-Pt-induced apoptosis and their effects on glutathione system of murine L1210 leukemia cells were studied. The results showed that total glutathione (GSHt) level is increased significantly (cca 123% of control level), both in cells treated with 10 microM Qu and in cells treated with 4 microM cis-Pt and 10 microM Qu in combination. 10 microM Ga had no effect on GSHt content. Activities of glutathione S-transferase (GST) and glutathione reductase (GR) were not changed significantly when 10 microM flavonoids were used. Significant inhibition of GR activity was observed when flavonoids were used in concentrations higher than 25 microM.The presented data indicate that Qu change the redox state of the cells that is implicated in regulation of apoptosis, due to its ability to increase the GSHt level, and thus may potentiate cis-Pt-induced apoptosis of L1210 cells.

Year: 2003, Volume: 50, Issue: Page From: 443, Page To: 446

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