Loss of RDM1 enhances hepatocellular carcinoma progression via p53 and Ras/Raf/ERK pathways.

作者: Shi‐Lu Chen , Li‐Li Liu , Chun‐Hua Wang , Shi‐Xun Lu , Xia Yang

DOI: 10.1002/1878-0261.12593

关键词:

摘要: Hepatocellular carcinoma (HCC), with its ineffective therapeutic options and poor prognosis, represents a global threat. In the present study, we show that RAD52 motif 1 (RDM1), key regulator of DNA double-strand break repair recombination, is downregulated in HCC tissues suppresses tumor growth. clinical samples, low expression RDM1 correlates larger size, differentiation, unfavorable survival. vitro vivo data demonstrate knockdown increases cell proliferation, colony formation, population at G2/M phase, whereas overexpression results opposite phenotypes. Mechanistically, binds to suppressor p53 enhances protein stability. presence p53, phosphorylation Raf ERK. Overexpression or treatment ERK inhibitor significantly abolishes proliferation induced by depletion RDM1. addition, methyltransferase-like 3 markedly induces N6-methyladenosine modification mRNA represses expression. Taken together, our study indicates functions as may be potential prognostic factor for HCC.

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