STAT1-induced regulation of lncRNA ZFPM2-AS1 predicts poor prognosis and contributes to hepatocellular carcinoma progression via the miR-653/GOLM1 axis

Cell Death Dis. 2021 Jan 4;12(1):31. doi: 10.1038/s41419-020-03300-4.

Abstract

Long noncoding RNAs (lncRNAs) have drawn growing attention owing to their important effects in various tumors, including hepatocellular carcinoma (HCC). Recently, a newly identified lncRNA, ZFPM2 antisense RNA 1 (ZFPM2-AS1), was reported to serve as an oncogene in gastric cancer. However, its function in tumors remains largely unknown. In this study, we identified ZFPM2-AS1 as a novel HCC-related lncRNA, which was observed to be distinctly upregulated in HCC tissues and associated with shorter overall survival. Luciferase reporter and chromatin immunoprecipitation assays suggested that overexpression of ZFPM2-AS1 was induced by STAT1. Functional investigations suggested that the inhibition of ZFPM2-AS1 suppressed cell proliferation, metastasis, cell cycle progression while accelerated cell apoptosis. Mechanistic studies showed that there were two binding sites of miR-653 within the sequence of ZFPM2-AS1 and the levels of ZFPM2-AS1 were negatively correlated with miR-653. In addition, ZFPM2-AS1 could reverse the suppressor effects of miR-653 on the proliferation and metastasis of HCC cells by the modulation of GOLM1, a target gene of miR-653. To conclude, we provided a better understanding of the interaction mechanism between ZFPM2-AS-miR-653-GOLM1 axis, which may help develop prognostic biomarkers and therapeutic target for HCC.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Animals
  • Carcinoma, Hepatocellular / metabolism*
  • Cell Line, Tumor
  • Cell Movement
  • Cell Proliferation
  • DNA-Binding Proteins / metabolism*
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Liver Neoplasms / metabolism*
  • Male
  • Membrane Proteins / metabolism
  • Mice
  • Mice, Inbred BALB C
  • Mice, Nude
  • MicroRNAs / metabolism
  • Middle Aged
  • RNA, Long Noncoding / physiology*
  • STAT1 Transcription Factor / metabolism*
  • Transcription Factors / metabolism*

Substances

  • DNA-Binding Proteins
  • GOLM1 protein, human
  • MIRN653 microRNA, human
  • Membrane Proteins
  • MicroRNAs
  • RNA, Long Noncoding
  • STAT1 Transcription Factor
  • STAT1 protein, human
  • Transcription Factors
  • ZFPM2 protein, human