MicroRNA-5195-3p alleviates high glucose‑induced injury in human ARPE-19 cells by targeting GMFB

PLoS One. 2021 Nov 18;16(11):e0260071. doi: 10.1371/journal.pone.0260071. eCollection 2021.

Abstract

Hyperglycemia is generally considered to be an important cause of diabetic retinopathy (DR). The aim of the present study was to investigate the role of miR-5195-3p in high glucose (HG)-induced human retinal pigment epithelial ARPE-19 cell injury. Here, we first found that the expression level of miR-5195-3p was significantly downregulated in HG-stimulated ARPE-19 cells using reverse transcription quantitative PCR. Overexpression of miR-5195-3p attenuated the impaired cell viability, increased apoptosis and pro-inflammatory cytokines secretion in ARPE-19 cells under HG condition using CCK-8 assay, flow cytometry and ELISA assay, respectively. Luciferase reporter assay showed that miR-5195-3p could specifically bind to the 3'UTR of glia maturation factor-β (GMFB). GMFB overexpression reversed, while knockdown enhanced the protective effects of miR-5195-3p overexpression against HG-induced ARPE-19 cell injury. In summary, miR-5195-3p targeting GMFB might be a potential therapeutic target for DR.

MeSH terms

  • 3' Untranslated Regions
  • Cell Communication
  • Cell Line
  • Cell Survival
  • Diabetic Retinopathy / genetics
  • Gene Expression / genetics
  • Gene Expression Regulation / genetics
  • Glia Maturation Factor / genetics
  • Glia Maturation Factor / metabolism*
  • Glucose / metabolism
  • Humans
  • Hyperglycemia / genetics
  • MicroRNAs / genetics*
  • MicroRNAs / metabolism
  • Phagocytosis
  • Retinal Pigment Epithelium / metabolism*

Substances

  • 3' Untranslated Regions
  • Glia Maturation Factor
  • MIRN5195 microRNA, human
  • MicroRNAs
  • Glucose

Grants and funding

The authors received no specific funding for this work.