Overexpression of frataxin in the mitochondria increases resistance to oxidative stress and extends lifespan in Drosophila

Alexander P. Runko, Anthony J. Griswold, Kyung Tai Min

Research output: Contribution to journalArticle

49 Scopus citations


In Friedreich's ataxia, reduction of the mitochondria protein frataxin results in the accumulation of iron and reactive oxygen species, which leads to oxidative damage, neurodegeneration and a diminished lifespan. Recent studies propose that frataxin might play a role in the antioxidative process. Here we show that overexpression of Drosophila frataxin in the mitochondria of female transgenic animals increases antioxidant capability, resistance to oxidative stress insults, and longevity. This suggests that Drosophila frataxin may function to protect the mitochondria from oxidative stresses and the ensuing cellular damage.

Original languageEnglish (US)
Pages (from-to)715-719
Number of pages5
JournalFEBS letters
Issue number5
StatePublished - Mar 5 2008
Externally publishedYes



  • Drosophila
  • Frataxin
  • Friedreich's ataxia
  • Oxidative stress

ASJC Scopus subject areas

  • Biophysics
  • Structural Biology
  • Biochemistry
  • Molecular Biology
  • Genetics
  • Cell Biology

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