Cited by 195Genetics, Aging, and Longevity in Model OrganismsRedox biology and oxidative stressSelenium in Biological Systems

Reduction in glutathione peroxidase 4 increases life span through increased sensitivity to apoptosis

Ran, Q., Liang, H., Ikeno, Y., Qi, W., Prolla, T. A., Roberts, L. J., Wolf, N., VanRemmen, H. +1 more·2007·The Journals of Gerontology Series A: Biological Sciences and Medical Sciences

Abstract

Glutathione peroxidase 4 (Gpx4) is an antioxidant defense enzyme that plays an important role in detoxification of oxidative damage to membrane lipids. Because oxidative stress is proposed to play a causal role in aging, we compared the life spans of Gpx4 heterozygous knockout mice (Gpx4(+/-) mice) and wild-type mice (WT mice). To our surprise, the median life span of Gpx4(+/-) mice (1029 days) was significantly longer than that of WT mice (963 days) even though the expression of Gpx4 was reduced approximately 50% in all tissues of Gpx4(+/-) mice. Pathological analysis revealed that Gpx4(+/-) mice showed a delayed occurrence of fatal tumor lymphoma and a reduced severity of glomerulonephritis. Compared to WT mice, Gpx4(+/-) mice showed significantly increased sensitivity to oxidative stress-induced apoptosis. Our data indicate that lifelong reduction in Gpx4 increased life span and reduced/retarded age-related pathology most likely through alterations in sensitivity of tissues to apoptosis.

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  • Mice heterozygous for mitochondrial glutathione peroxidase 4 or the ubiquinone biosynthesis protein CLK1 display high levels of mitochondrial oxidative stress, yet live longer than their wild-type counterparts.

    “Mice heterozygous for the mitochondrial glutathione peroxidase 4 or the ubiquinone biosynthesis protein CLK1 display high levels of mitochondrial oxidative stress, yet live longer than their wild-type counterparts 93, 94.”

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Research works printed but not linked: 2

  1. Yu BP. Antioxidant action of dietary restriction in aging. J Nutr Sci Vitaminol. 1993;39:575-583.
  2. Migliaccio E, Giorgio M, Pelicci PG. Apoptosis and aging: role of p66Shc redox protein. Antioxid Redox Signal. 2006;8:600-608.

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Authors
Ran, Q., Liang, H., Ikeno, Y., Qi, W., Prolla, T. A., Roberts, L. J., Wolf, N., VanRemmen, H., & Richardson, A.
Affiliations
  • The University of Texas at San Antonio Health Science Center (US)
  • University of Wisconsin–Madison (US)
  • Vanderbilt University (US)
  • University of Washington (US)
  • South Texas Veterans Health Care System (US)
Corresponding author
Ran, Q.
Venue
The Journals of Gerontology Series A: Biological Sciences and Medical Sciences
Published
2007-09-01
Volume
62
Issue
9
Pages
932-942
ISSN
  • 1079-5006 (ISSN-L)
  • 1758-535X
OpenAlex
W2141897277
Cited by
195
References
64
Citations by year
2026: 5 · 2025: 4 · 2024: 10 · 2023: 8 · 2022: 7 · 2021: 7 · 2020: 8 · 2019: 6 · 2018: 14 · 2017: 10 · 2016: 7 · 2015: 12 · 2014: 14 · 2013: 9 · 2012: 12
FWCI
3.88
Type
journal article
Language
en
Open access
closed
Locations
  • The Journals of Gerontology Series A (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Institute on Aging (P30AG13319, P01 AG19316, P01AG020591, P01AG019316, P30AG013319)
  • National Institute of General Medical Sciences (R37 GM42056, R37GM042056)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Nursing › Nutrition and Dietetics › Selenium in Biological Systems
Keywords
GPX4, lifespan, aging, apoptosis sensitivity, oxidative stress, lipid peroxidation, antioxidant defense, lymphoma, glomerulonephritis, age-related diseases
MeSH terms
Phospholipid Hydroperoxide Glutathione Peroxidase, Aging, Animals, Antioxidants, Glomerulonephritis, Glutathione Peroxidase, Heterozygote, Longevity, Male, Mice, Inbred C57BL, Lipid Peroxidation, Gene Expression, Apoptosis, Mice, Knockout, Oxidative Stress, Mice

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