MiRNA-211 suppresses cell proliferation, migration and invasion by targeting SPARC in human hepatocellular carcinoma

Sci Rep. 2016 May 27:6:26679. doi: 10.1038/srep26679.

Abstract

Previous studies have shown that the expression of miR-211 was downregulated in hepatocellular carcinoma (HCC). However, the molecular function and mechanism of miR-211 in HCC growth and invasion are largely unclear. We found that miR-211 is downregulated in HCC tissues and cell lines, respectively. Further results showed that low miR-211 associated with TNM stage, vein invasion status, and poor prognosis. Ectopic expression of miR-211 effectively suppressed HCC cell proliferation, migration and invasion both in vitro and in vivo. We identified SPARC as a bona fide target of miR-211, and overexpression of miR-211 decreased the mRNA and protein expression of SPARC. Finally, we confirmed that the overexpression of SPARC in miR-211-expressing HCC cells can partially restore the inhibitory effect of miR-211. Taken together, our results demonstrated that loss of miR-211 expression and thus uncontrolled SPARC overexpression might drive progression of HCC, which may provide a novel therapeutic strategy for the treatment of HCC.

Publication types

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

MeSH terms

  • Carcinoma, Hepatocellular / genetics
  • Carcinoma, Hepatocellular / metabolism*
  • Carcinoma, Hepatocellular / pathology
  • Cell Movement*
  • Cell Proliferation*
  • Gene Expression Regulation, Neoplastic*
  • HEK293 Cells
  • Hep G2 Cells
  • Humans
  • Liver Neoplasms / genetics
  • Liver Neoplasms / metabolism*
  • Liver Neoplasms / pathology
  • MicroRNAs / biosynthesis*
  • MicroRNAs / genetics
  • Neoplasm Invasiveness
  • Neoplasm Proteins / biosynthesis*
  • Neoplasm Proteins / genetics
  • Osteonectin / biosynthesis*
  • Osteonectin / genetics
  • RNA, Neoplasm / biosynthesis*
  • RNA, Neoplasm / genetics

Substances

  • MIRN211 microRNA, human
  • MicroRNAs
  • Neoplasm Proteins
  • Osteonectin
  • RNA, Neoplasm
  • SPARC protein, human