{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:49:46Z","timestamp":1787017786446,"version":"build-2736575974"},"reference-count":42,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2022,7,5]],"date-time":"2022-07-05T00:00:00Z","timestamp":1656979200000},"content-version":"vor","delay-in-days":185,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81800079"],"award-info":[{"award-number":["81800079"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Oxidative Medicine and Cellular Longevity"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:p>Radiation\u2010induced lung injury (RILI) is one of the most common, serious, and dose\u2010limiting toxicities of thoracic radiotherapy. A primary cause for this is the radiation\u2010induced cell death. Ferroptosis is a recently recognized form of regulated cell death, characterized by the accumulation of lipid peroxidation products and lethal reactive oxygen species (ROS). The ROS generated by irradiation might be the original trigger of ferroptosis in RILI. In addition, activation of the P62\u2010Kelch\u2010like ECH\u2010associated protein 1 (Keap1)\u2010nuclear factor erythroid 2\u2010related factor 2 (NRF2) pathway has been shown to blunt ferroptosis and thus acts as a protective factor. Therefore, this study aimed to explore the protective effect of the P62\u2010Keap1\u2010NRF2 pathway against radiation\u2010induced ferroptosis in alveolar epithelial cells. First, we found that radiation induced ferroptosis in vitro using a RILI cell model, which could be significantly reduced by ferrostatin\u20101 (Fer\u20101), a specific ferroptosis inhibitor. Additionally, overexpression of P62 interacted with Keap1 to facilitate the translocation of NRF2 into the nucleus and promote the expression of its target proteins, including quinone oxidoreductase 1 (NQO1), heme oxygenase 1 (HO1), and ferritin heavy chain 1 (FTH1). In summary, our results demonstrated that the activation of the P62\u2010Keap1\u2010NRF2 pathway prevents radiation\u2010induced ferroptosis in RILI cells, providing a theoretical basis of finding a potential therapeutic approach for RILI.<\/jats:p>","DOI":"10.1155\/2022\/8973509","type":"journal-article","created":{"date-parts":[[2022,7,5]],"date-time":"2022-07-05T22:50:22Z","timestamp":1657061422000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":30,"title":["Activation of the P62\u2010Keap1\u2010NRF2 Pathway Protects against Ferroptosis in Radiation\u2010Induced Lung 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