{"title":"电离辐射诱导的线粒体自噬通过增加细胞内游离脂肪酸来促进脱铁性贫血。","authors":"Pengfei Yang, Jin Li, Tianyi Zhang, Yanxian Ren, Qiuning Zhang, Ruifeng Liu, Haining Li, Junrui Hua, Wen-An Wang, Jufang Wang, Heng Zhou","doi":"10.1038/s41418-023-01230-0","DOIUrl":null,"url":null,"abstract":"Ferroptosis is a type of cell death characterized by the accumulation of intracellular iron and an increase in hazardous lipid peroxides. Ferroptosis and autophagy are closely related. Ionizing radiation is a frequently used cancer therapy to kill malignancies. We found that ionizing radiation induces both ferroptosis and autophagy and that there is a form of mutualism between the two processes. Ionizing radiation also causes lipid droplets to form in proximity to damaged mitochondria, which, through the action of mitophagy, results in the degradation of the peridroplet mitochondria by lysosomes and the consequent release of free fatty acids and a significant increase in lipid peroxidation, thus promoting ferroptosis. Ionizing radiation has a stronger, fatal effect on cells with a high level of mitophagy, and this observation suggests a novel strategy for tumor treatment.","PeriodicalId":9731,"journal":{"name":"Cell Death and Differentiation","volume":"30 11","pages":"2432-2445"},"PeriodicalIF":13.7000,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Ionizing radiation-induced mitophagy promotes ferroptosis by increasing intracellular free fatty acids\",\"authors\":\"Pengfei Yang, Jin Li, Tianyi Zhang, Yanxian Ren, Qiuning Zhang, Ruifeng Liu, Haining Li, Junrui Hua, Wen-An Wang, Jufang Wang, Heng Zhou\",\"doi\":\"10.1038/s41418-023-01230-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ferroptosis is a type of cell death characterized by the accumulation of intracellular iron and an increase in hazardous lipid peroxides. Ferroptosis and autophagy are closely related. Ionizing radiation is a frequently used cancer therapy to kill malignancies. We found that ionizing radiation induces both ferroptosis and autophagy and that there is a form of mutualism between the two processes. Ionizing radiation also causes lipid droplets to form in proximity to damaged mitochondria, which, through the action of mitophagy, results in the degradation of the peridroplet mitochondria by lysosomes and the consequent release of free fatty acids and a significant increase in lipid peroxidation, thus promoting ferroptosis. Ionizing radiation has a stronger, fatal effect on cells with a high level of mitophagy, and this observation suggests a novel strategy for tumor treatment.\",\"PeriodicalId\":9731,\"journal\":{\"name\":\"Cell Death and Differentiation\",\"volume\":\"30 11\",\"pages\":\"2432-2445\"},\"PeriodicalIF\":13.7000,\"publicationDate\":\"2023-10-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Cell Death and Differentiation\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://www.nature.com/articles/s41418-023-01230-0\",\"RegionNum\":1,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"BIOCHEMISTRY & MOLECULAR BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cell Death and Differentiation","FirstCategoryId":"99","ListUrlMain":"https://www.nature.com/articles/s41418-023-01230-0","RegionNum":1,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"BIOCHEMISTRY & MOLECULAR BIOLOGY","Score":null,"Total":0}
Ferroptosis is a type of cell death characterized by the accumulation of intracellular iron and an increase in hazardous lipid peroxides. Ferroptosis and autophagy are closely related. Ionizing radiation is a frequently used cancer therapy to kill malignancies. We found that ionizing radiation induces both ferroptosis and autophagy and that there is a form of mutualism between the two processes. Ionizing radiation also causes lipid droplets to form in proximity to damaged mitochondria, which, through the action of mitophagy, results in the degradation of the peridroplet mitochondria by lysosomes and the consequent release of free fatty acids and a significant increase in lipid peroxidation, thus promoting ferroptosis. Ionizing radiation has a stronger, fatal effect on cells with a high level of mitophagy, and this observation suggests a novel strategy for tumor treatment.
期刊介绍:
Mission, vision and values of Cell Death & Differentiation:
To devote itself to scientific excellence in the field of cell biology, molecular biology, and biochemistry of cell death and disease.
To provide a unified forum for scientists and clinical researchers
It is committed to the rapid publication of high quality original papers relating to these subjects, together with topical, usually solicited, reviews, meeting reports, editorial correspondence and occasional commentaries on controversial and scientifically informative issues.