The long non-coding RNA SNHG1 promotes glioma progression by competitively binding to miR-194 to regulate PHLDA1 expression

Cell Death Dis. 2019 Jun 12;10(6):463. doi: 10.1038/s41419-019-1698-7.

Abstract

Long non-coding RNAs (lncRNAs) play a vital role in tumourigenesis, including that of glioma. Small nucleolar RNA host gene 1 (SNHG1) is a relatively novel lncRNA that is involved in the development of multiple human tumours. However, its underlying molecular mechanism in glioma has not been completely clarified. In this study, we show that SNHG1 is overexpressed in glioma tissues and cell lines. A series of functional assays suggested that SNHG1 promotes glioma progression in vitro and in vivo. Next, through online databases, a luciferase reporter assay and an RNA pull-down assay, we confirmed that SNHG1 functions as a sponge for miR-194, which acts as a suppressor in glioma. We also verified that pleckstrin homology like domain family A, member 1 (PHLDA1) is the functional target of miR-194. Moreover, rescue experiments demonstrated that SNHG1 regulates PHLDA1 expression in a miR-194-dependent manner. Taken together, our study shows that SNHG1 promotes glioma progression by competitively binding to miR-194 to regulate PHLDA1 expression, which may provide a novel therapeutic strategy for glioma.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Apoptosis / genetics
  • Carcinogenesis / genetics
  • Cell Line, Tumor
  • Cell Movement / genetics*
  • Cell Proliferation / genetics*
  • Disease Progression
  • Female
  • Gene Expression Regulation, Neoplastic*
  • Glioma / genetics*
  • Glioma / metabolism
  • Glucose / metabolism
  • Humans
  • Mice
  • Mice, Nude
  • MicroRNAs / genetics
  • MicroRNAs / metabolism*
  • Neovascularization, Pathologic / genetics
  • Neovascularization, Pathologic / metabolism
  • RNA, Long Noncoding / genetics
  • RNA, Long Noncoding / metabolism*
  • Transcription Factors / genetics*
  • Transcription Factors / metabolism
  • Transplantation, Heterologous
  • Up-Regulation

Substances

  • MIRN194 microRNA, human
  • MicroRNAs
  • PHLDA1 protein, human
  • RNA, Long Noncoding
  • Transcription Factors
  • long non-coding RNA SNHG1, human
  • Glucose