Cited by 2,329Ferroptosis and cancer prognosisAntioxidant Activity and Oxidative StressSelenium in Biological Systems

Peroxidation of polyunsaturated fatty acids by lipoxygenases drives ferroptosis

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Yang, Wan Seok, Kim, Katherine J., Gaschler, Michael M., Patel, Milesh, Shchepinov, Mikhail S., Stockwell, Brent R.·2016·Proceedings of the National Academy of Sciences

Abstract

Significance: Ferroptosis is a regulated form of cell death induced by loss of glutathione peroxidase 4 (GPX4) phospholipid peroxidase activity and lethal accumulation of reactive oxygen species. Small-molecule inhibitors of GPX4 induce ferroptosis; however, the interaction between these inhibitors and GPX4 has remained elusive, as has the identity of the reactive oxygen species that drive execution of ferroptosis. We identified here a ligand-binding site on GPX4 and determined the specific lipids oxidized during ferroptosis. We further identified two key drivers of lipid peroxidation during ferroptosis: lipoxygenases and phosphorylase kinase G2. These findings reveal a previously enigmatic mechanism of ferroptotic lipid peroxide generation and suggest new strategies for pharmacological control of ferroptosis and diseases associated with this mode of cell death.

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  1. Krippendorff BF, Neuhaus R, Lienau P, Reichel A, Huisinga W (2009) Mechanism-based inhibition: Deriving K(I) and k(inact) directly from time-dependent IC(50) values. J Biomol Screen 14(8):913-923.

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Authors
Yang, W. S., Kim, K. J., Gaschler, M. M., Patel, M., Shchepinov, M. S., & Stockwell, B. R.
Affiliations
  • St. John's University (US)
  • Columbia University (US)
  • New York University (US)
  • Retrotope (United States) (US)
Venue
Proceedings of the National Academy of Sciences
Published
2016-08-09
Volume
113
Issue
34
Pages
E4966-75
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2508296626
Cited by
2,329
References
60
Citations by year
2026: 230 · 2025: 348 · 2024: 441 · 2023: 410 · 2022: 319 · 2021: 249 · 2020: 152 · 2019: 70 · 2018: 62 · 2017: 36 · 2016: 7 · 2015: 1 · 2014: 1
FWCI
52.14
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Cancer Institute (R01CA097061)
Topics
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Ferroptosis and cancer prognosis
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Health Sciences › Nursing › Nutrition and Dietetics › Selenium in Biological Systems
Keywords
ferroptosis, lipid peroxidation, polyunsaturated fatty acids, lipoxygenase, GPX4, iron availability, selenocysteine, deuterated fatty acids, reactive oxygen species, non-apoptotic cell death
MeSH terms
Phospholipid Hydroperoxide Glutathione Peroxidase, Deuterium, Epithelial Cells, Fatty Acids, Unsaturated, Gene Expression Regulation, Glutathione Peroxidase, Humans, Iron, Lipid Peroxides, Phosphorylase Kinase, Recombinant Fusion Proteins, Lipid Peroxidation, Signal Transduction, Cell Death, Selenocysteine, Catalytic Domain, Protein Transport, Cell Line, Tumor, Green Fluorescent Proteins, Lipoxygenases

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