Regulation of m6A modification on ferroptosis and its potential significance in radiosensitization
Xun Chen, Lejia Zhang, Yi He, Siyuan Huang, Shangwu Chen, Wei Zhao, Dongsheng Yu
Abstract
Abstract Radiotherapy is often used to treat various types of cancers, but radioresistance greatly limits the clinical efficiency. Recent studies have shown that radiotherapy can lead to ferroptotic cancer cell deaths. Ferroptosis is a new type of programmed cell death caused by excessive lipid peroxidation. The induction of ferroptosis provides a potential therapeutic strategy for radioresistance. As the most common post-transcriptional modification of mRNA, m 6 A methylation is widely involved in the regulation of various physiopathological processes by regulating RNA function. Dynamic m 6 A modification controlled by m 6 A regulatory factors also affects the susceptibility of cells to ferroptosis, thereby determining the radiosensitivity of tumor cells to radiotherapy. In this review, we summarize the mechanism and significance of radiotherapy induced ferroptosis, analyze the regulatory characteristics of m 6 A modification on ferroptosis, and discuss the possibility of radiosensitization by enhancing m 6 A-mediated ferroptosis. Clarifying the regulation of m 6 A modification on ferroptosis and its significance in the response of tumor cells to radiotherapy will help us identify novel targets to improve the efficacy of radiotherapy and reduce or overcome radioresistance.