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m6A modification-mediated lncRNA UNC5B-AS1 enhances HCC progression through miR-760/IL6 axis
Li-Ping Yu1, Sheng-Yu Huang2, Kun-Peng Li3
1Department of Oncology, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, 1111, Xianxia Road, Shanghai, 200336, China.
None:
WT1-associated protein (WTAP)-catalyzed m6A methylation drives oncogenic processes in HCC. Long noncoding RNA UNC5B-AS1 are associated with various types of cancer including hepatocellular carcinoma (HCC). Previous study indicated that UNC5B-AS1 promotes HCC progression. However, the precise roles of WTAP/UNC5B-AS1 axis in HCC progression remain unclear. In this study, we found that the m6A modification sites are highly abundant on UNC5B-AS1, and methylase WTAP enhances UNC5B-AS1 stability through m6A reader-YTHDF1 and up-regulates its expression in HCC. Functional tests showed that WTAP/UNC5B-AS1 axis drives HCC progression. Mechanically, UNC5B-AS1 acts as a molecular sponge to hsa-miR-760, to up-regulate the expression of Interleukin-6 (IL6), and plays a role in enhancing HCC progression. Our study reveals a mechanism by which m6A-RNA regulates oncogene activity, which might result in the creation of a therapeutic strategy for the treatment of HCC.
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