MiR-214 inhibits snakehead vesiculovirus (SHVV) replication by targeting host GS

Fish Shellfish Immunol. 2019 Jan:84:299-303. doi: 10.1016/j.fsi.2018.10.028. Epub 2018 Oct 9.

Abstract

MicroRNAs (miRNAs) are small noncoding RNAs that have been reported to play important roles in virus replication. Snakehead vesiculovirus (SHVV) is a new rhabdovirus isolated from diseased hybrid snakehead and has caused heavy economical losses in cultured snakehead fish in China. Our previous study has revealed that miR-214 inhibited SHVV replication, but the underline mechanism was not completely understood. In this study, glycogen synthase (GS) gene was identified as a target gene of miR-214. Overexpression of miR-214 reduced cellular GS gene expression. Knockdown of GS by siRNA, similar to the overexpression of miR-214, inhibited SHVV replication. Moreover, we found that siGS-mediated inhibition of SHVV replication could be restored by reducing cellular miR-214 level via using miR-214 inhibitor, indicating that miR-214 inhibited SHVV replication at least partially via targeting GS. This study provided information for understanding the molecular mechanism of SHVV pathogenicity and a potential antiviral strategy against SHVV infection.

Keywords: Glycogen synthase; Nakehead vesiculovirus; Replication; miR-214; microRNA.

MeSH terms

  • Animals
  • Fish Diseases / physiopathology*
  • Fish Diseases / virology
  • Fish Proteins / genetics*
  • Fish Proteins / metabolism
  • Glycogen Synthase / genetics*
  • Glycogen Synthase / metabolism
  • MicroRNAs / genetics*
  • MicroRNAs / metabolism
  • Perciformes*
  • RNA, Viral / genetics*
  • RNA, Viral / metabolism
  • Rhabdoviridae Infections / physiopathology
  • Rhabdoviridae Infections / veterinary*
  • Rhabdoviridae Infections / virology
  • Vesiculovirus / genetics
  • Vesiculovirus / physiology

Substances

  • Fish Proteins
  • MicroRNAs
  • RNA, Viral
  • Glycogen Synthase