Cited by 801Selenium in Biological SystemsRedox biology and oxidative stressAntioxidant Activity and Oxidative Stress

The selenoprotein GPX4 is essential for mouse development and protects from radiation and oxidative damage insults

Yant, Levi J, Ran, Qitao, Rao, Lin, Van Remmen, Holly, Shibatani, Toru, Belter, Jason G, Motta, Lucia, Richardson, Arlan +1 more·2003·Free Radical Biology and Medicine

Abstract

Lipid peroxidation has been implicated in a variety of pathophysiological processes, including inflammation, atherogenesis, neurodegeneration, and the ageing process. Phospholipid hydroperoxide glutathione peroxidase (GPX4) is the only major antioxidant enzyme known to directly reduce phospholipid hydroperoxides within membranes and lipoproteins, acting in conjunction with alpha tocopherol (vitamin E) to inhibit lipid peroxidation. Here we describe the generation and characterization of GPX4-deficient mice by targeted disruption of the murine Gpx4 locus through homologous recombination in embryonic stem cells. Gpx4(-/-) embryos die in utero by midgestation (E7.5) and are associated with a lack of normal structural compartmentalization. Gpx4(+/-) mice display reduced levels of Gpx4 mRNA and protein in various tissues. Interestingly, cell lines derived from Gpx4(+/-) mice are markedly sensitive to inducers of oxidative stress, including gamma-irradiation, paraquat, tert-butylhydroperoxide, and hydrogen peroxide, as compared to cell lines derived from wild-type control littermates. Gpx4(+/-) mice also display reduced survival in response to gamma-irradiation. Our observations establish GPX4 as an essential antioxidant enzyme in mice and suggest that it performs broad functions as a component of the mammalian antioxidant network.

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Crossref · 10.1016/s0891-5849(02)01360-6

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Authors
Yant, L. J., Ran, Q., Rao, L., Van Remmen, H., Shibatani, T., Belter, J. G., Motta, L., Richardson, A., & Prolla, T. A.
Affiliations
  • University of Wisconsin–Madison (US)
  • The University of Texas at San Antonio Health Science Center (US)
Corresponding author
Prolla, Tomas A
Venue
Free Radical Biology and Medicine
Publisher
Elsevier BV
Published
2003-02
Volume
34
Issue
4
Pages
496-502
ISSN
0891-5849 (ISSN-L)
OpenAlex
W2165072468
Cited by
797
References
26
Citations by year
2026: 29 · 2025: 41 · 2024: 82 · 2023: 59 · 2022: 52 · 2021: 51 · 2020: 43 · 2019: 32 · 2018: 39 · 2017: 35 · 2016: 22 · 2015: 27 · 2014: 27 · 2013: 24 · 2012: 26
FWCI
16.61
Type
journal article
Language
en
Open access
closed
Locations
  • Free Radical Biology and Medicine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • U.S. Department of Veterans Affairs
  • National Institutes of Health
  • University of Texas Health Science Center at San Antonio
  • National Institute on Aging (P03-AG13319, 1 P01 AG19316, P01AG019316)
  • National Cancer Institute
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Selenium in Biological Systems
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
Keywords
GPX4, phospholipid hydroperoxide glutathione peroxidase, selenoproteins, lipid peroxidation, antioxidant enzymes, embryonic lethality, oxidative stress, gamma-irradiation sensitivity, paraquat, tert-butyl hydroperoxide, hydrogen peroxide, vitamin E, mouse development
MeSH terms
Phospholipid Hydroperoxide Glutathione Peroxidase, Animals, Cell Line, Embryo, Mammalian, Female, Fetal Death, Embryonic and Fetal Development, Fibroblasts, Gamma Rays, Gestational Age, Glutathione Peroxidase, Hydrogen Peroxide, Mice, Inbred C57BL, Paraquat, Pregnancy, RNA, Messenger, Blotting, Northern, Blotting, Western, Mice, Knockout, Oxidative Stress, tert-Butylhydroperoxide, In Situ Nick-End Labeling, Mice

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