MiR-122-5p regulates erastin-induced ferroptosis via CS in nasopharyngeal carcinoma

• Published in: Scientific reports Vol. 14; no. 1; p. 10019
• Main Authors: Guo, Liqing, Wang, Zhi, Fu, Yanpeng, Wu, Shuhong, Zhu, Yaqiong, Yuan, Jiasheng, Liu, Yuehui
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 01.05.2024; Nature Publishing Group; Nature Portfolio
• Subjects: 631/67; 692/4028; Animals; Cell growth; Cell Line, Tumor; Cell migration; Cell Movement - drug effects; Cell proliferation; Cell Proliferation - drug effects; Cells; Citrate synthase; Ferroptosis; Ferroptosis - drug effects; Ferroptosis - genetics; Gene Expression Regulation, Neoplastic - drug effects; Glutathione; Humanities and Social Sciences; Humans; Lipid peroxidation; Lipids; Mice; Mice, Nude; MicroRNAs - genetics; MicroRNAs - metabolism; miR-122-5p; miRNA; multidisciplinary; Nasopharyngeal carcinoma; Nasopharyngeal Carcinoma - genetics; Nasopharyngeal Carcinoma - metabolism; Nasopharyngeal Carcinoma - pathology; Nasopharyngeal Neoplasms - genetics; Nasopharyngeal Neoplasms - metabolism; Nasopharyngeal Neoplasms - pathology; Nasopharynx; Neoplasms; Oxygen; Peroxidation; Piperazines; Reactive oxygen species; Reactive Oxygen Species - metabolism; Science; Science (multidisciplinary); Throat cancer; Wound healing; Nasopharyngeal carcinoma; CS; Ferroptosis; miR-122-5p
• ISSN: 2045-2322; 2045-2322
• DOI: 10.1038/s41598-024-59080-w

Nasopharyngeal carcinoma (NPC) is a tumor that occurs in the nasopharynx. Although advances in detection and treatment have improved the prognosis of NPC the treatment of advanced NPC remains challenging. Here, we explored the effect of microRNA (miR)-122-5p on erastin-induced ferroptosis in NPC cells and the role of ferroptosis in the development of NPC. The effect of miR-122-5p silencing and overexpression and the effect of citrate synthase on erastin-induced lipid peroxidation in NPC cells was analyzed by measuring the amounts of malondialdehyde, Fe 2+ , glutathione, and reactive oxygen species and the morphological alterations of mitochondria. The malignant biological behavior of NPC cells was examined by cell counting kit-8, EDU, colony formation, Transwell, and wound healing assays. The effects of miR-122-5p on cell proliferation and migration associated with ferroptosis were examined in vivo in a mouse model of NPC generated by subcutaneous injection of NPC cells. We found that erastin induced ferroptosis in NPC cells. miR-122-5p overexpression inhibited CS, thereby promoting erastin-induced ferroptosis in NPC cells and decreasing NPC cell proliferation, migration, and invasion.