Exceptional cellular resistance to oxidative damage in long-lived birds requires active gene expression

C. E. Ogburn, G. M. Martin, M. A. Ottinger, K. Carlberg, D. J. Holmes, S. N. Austad

Research output: Contribution to journalArticle

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Abstract

Previous studies indicated that renal tubular epithelial cells from some long-lived avian species exhibit robust and/or unique protective mechanisms against oxidative stress relative to murine cells. Here we extend these studies to investigate the response of primary embryonic fibroblast-like cells to oxidative challenge in long- and short-lived avian species (budgerigar, Melopsittacus undulatus, longevity up to 20 years, vs Japanese quail, Coturnix coturnix japonica, longevity up to 5 years) and short- and long-lived mammalian species (house mouse, Mus musculus, longevity up to 4 years vs humans, Homo sapiens, longevity up to 122 years). Under the conditions of our assay, the oxidative-damage resistance phenotype appears to be associated with exceptional longevity in avian species, but not in mammals. Furthermore, the extreme oxidative damage resistance phenotype observed in a long-lived bird requires active gene transcription and translation, suggesting that specific gene products may have evolved in long-lived birds to facilitate resistance to oxidative stress.

Original languageEnglish (US)
Pages (from-to)B468-B474
JournalJournals of Gerontology - Series A Biological Sciences and Medical Sciences
Volume56
Issue number11
DOIs
StatePublished - Nov 2001

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ASJC Scopus subject areas

  • Aging
  • Geriatrics and Gerontology

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