期刊
MOLECULAR CARCINOGENESIS
卷 57, 期 11, 页码 1566-1576出版社
WILEY
DOI: 10.1002/mc.22878
关键词
ferroptosis; GOT1; glutaminolysis; melanoma; miR-9
资金
- National Natural Science Foundation of China [81772915, 81502868]
- Natural Science Foundation of Jiangsu Province [BK20150346]
- State Key Laboratory of Pathogen and Biosecurity of China [SKLPBS1505]
Ferroptosis is a recently recognized form of regulated cell death driven by lipid-based reactive oxygen species (ROS) accumulation. However, the molecular mechanisms of ferroptosis regulation are still largely unknown. Here we identified a novel miRNA, miR-9, as an important regulator of ferroptosis by directly targeting GOT1 in melanoma cells. Overexpression of miR-9 suppressed GOT1 by directly binding to its 3-UTR, which subsequently reduced erastin- and RSL3-induced ferroptosis. Conversely, suppression of miR-9 increased the sensitivity of melanoma cells to erastin and RSL3. Importantly, anti-miR-9 mediated lipid ROS accumulation and ferroptotic cell death could be abrogated by inhibiting glutaminolysis process. Taken together, our findings demonstrate that miR-9 regulates ferroptosis by targeting GOT1 in melanoma cells, illustrating the important role of miRNA in ferroptosis.
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