The lincRNA-ROR/miR-145 axis promotes invasion and metastasis in hepatocellular carcinoma via induction of epithelial-mesenchymal transition by targeting ZEB2

Sci Rep. 2017 Jul 5;7(1):4637. doi: 10.1038/s41598-017-04113-w.

Abstract

Emerging evidence show that long noncoding RNAs (lncRNAs) play critical roles in tumor development. LincRNA-ROR (linc-ROR) is known to promote tumor progress in several human cancers, including hepatocellular carcinoma (HCC). Nevertheless, the roles of linc-ROR in HCC metastasis and its underlying mechanisms remain fully unclear. In the present study, we showed that linc-ROR was upregulated in HCC tissues and high linc-ROR expression level predicted poor prognosis. Functionally, linc-ROR significantly induced epithelial-mesenchymal transition (EMT), and increased in vitro invasion and in vivo metastasis of HCC cells. Mechanistically, linc-ROR acted as a sponge for miR-145 to de-repress the expression of target gene ZEB2, thereby inducing EMT and promoting HCC metastasis. Collectively, our research indicates the potential of linc-ROR as a vital therapeutic target for the treatment of aggressive and metastatic HCC.

Publication types

  • Research Support, Non-U.S. Gov't
  • Retracted Publication

MeSH terms

  • Animals
  • Carcinoma, Hepatocellular / genetics*
  • Carcinoma, Hepatocellular / pathology
  • Cell Line, Tumor
  • Cell Movement
  • Epithelial-Mesenchymal Transition
  • Female
  • Gene Expression Regulation, Neoplastic
  • Hep G2 Cells
  • Humans
  • Liver Neoplasms / genetics*
  • Liver Neoplasms / pathology
  • Male
  • Mice
  • MicroRNAs / genetics*
  • Neoplasm Invasiveness
  • Neoplasm Metastasis
  • Neoplasm Staging
  • Neoplasm Transplantation
  • Prognosis
  • RNA, Long Noncoding / genetics*
  • Up-Regulation
  • Zinc Finger E-box Binding Homeobox 2 / genetics*

Substances

  • Linc-RNA-RoR, human
  • MIRN145 microRNA, human
  • MicroRNAs
  • RNA, Long Noncoding
  • ZEB2 protein, human
  • Zinc Finger E-box Binding Homeobox 2