Protective effect of fisetin (3,7,3',4'-tetrahydroxyflavone) against γ-irradiation-induced oxidative stress and cell damage

Mei Jing Piao, Ki Cheon Kim, Sungwook Chae, Young Sam Keum, Hye Sun Kim, Jin Won Hyun

Research output: Contribution to journalArticlepeer-review

30 Scopus citations

Abstract

Ionizing radiation can induce cellular oxidative stress through the generation of reactive oxygen species, resulting in cell damage and cell death. The aim of this study was to determine whether the antioxidant effects of the flavonoid fisetin (3,7,3',4'-tetrahydroxyflavone) included the radioprotection of cells exposed to γ-irradiation. Fisetin reduced the levels of intracellular reactive oxygen species generated by γ-irradiation and thereby protected cells against γ-irradiation-induced membrane lipid peroxidation, DNA damage, and protein carbonylation. In addition, fisetin maintained the viability of irradiated cells by partially inhibiting γ-irradiation-induced apoptosis and restoring mitochondrial membrane potential. These effects suggest that the cellular protective effects of fisetin against γ-irradiation are mainly due to its inhibition of reactive oxygen species generation.

Original languageEnglish
Pages (from-to)210-215
Number of pages6
JournalBiomolecules and Therapeutics
Volume21
Issue number3
DOIs
StatePublished - 2013

Keywords

  • γ-irradiation
  • Apoptosis
  • Cell damage
  • Fisetin
  • Reactive oxygen species

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