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Publication Detail

Title: MicroRNA-411 Downregulation Enhances Tumor Growth by Upregulating MLLT11 Expression in Human Bladder Cancer.

Authors: Jin, Honglei; Sun, Wenrui; Zhang, Yuanmei; Yan, Huiying; Liufu, Huating; Wang, Shuai; Chen, Caiyi; Gu, Jiayan; Hua, Xiaohui; Zhou, Lingli; Jiang, Guosong; Rao, Dapang; Xie, Qipeng; Huang, Haishan; Huang, Chuanshu

Published In Mol Ther Nucleic Acids, (2018 Jun 01)

Abstract: Although several previous studies have reported the implication of various microRNAs (miRNAs) in regulation of human bladder cancer (BC) development, alterations and function of many miRNAs in bladder cancer growth are not explored yet at present. Here, we screened 1,900 known miRNAs and first discovered that miR-411 was one of the major miRNAs, which was down-regulated in n-butyl-N-(4-hydroxybutyl)-nitrosamine (BBN)-induced BCs. This miR-411 down-regulation was also observed in human BC tissues and cell lines. The results from evaluating the relationship between miR-411 and patient survival in BC using the TCGA (The Cancer Genome Atlas) database indicated that miR-411 was positively correlated with DFS (disease-free survival). Our studies also showed that miR-411 inhibited tumor growth of human BC cells in a xenograft animal model. Mechanistic studies revealed that overexpression of miR-411 repressed the expression of ALL1-fused gene from the chromosome 1q (AF1q) (MLLT11) by binding to the 3' untranslated region (UTR) of mllt11 mRNA and in turn induced p21 expression and caused cell cycle arrest at the G2/M phase, further inhibiting BC tumor growth. Collectively, our results improve our understanding of the role of miR-411 in BC tumor growth and suggest miR-411 and MLLT11 as potential new targets for the treatment of BC patients.

PubMed ID: 29858066 Exiting the NIEHS site

MeSH Terms: No MeSH terms associated with this publication

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