Comprehensive analysis of differences of N6-methyladenosine RNA methylomes between high-fat-fed and normal mouse livers

Epigenomics. 2019 Aug;11(11):1267-1282. doi: 10.2217/epi-2019-0009. Epub 2019 Jul 10.

Abstract

Aim: To assess the m6A methylome in mouse fatty liver induced by a high-fat diet (HFD). Materials & methods: MeRIP-seq was performed to identify differences in the m6A methylomes between the normal liver and fatty liver induced by an HFD. Results: As compared with the control group, the upmethylated coding genes upon feeding an HFD were primarily enriched in processes associated with lipid metabolism, while genes with downmethylation were enriched in processes associated with metabolism and translation. Furthermore, many RNA-binding proteins that potentially bind to differentially methylated m6A sites were mainly annotated in processes of RNA splicing. Conclusion: These findings suggest that differential m6A methylation may act on functional genes through RNA-binding proteins to regulate the metabolism of lipids in fatty liver disease.

Keywords: fatty liver; lipid metabolism; m6A; translation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adenosine / analogs & derivatives*
  • Adenosine / chemistry
  • Animals
  • Biomarkers / analysis
  • DNA Methylation*
  • Diet, High-Fat / adverse effects*
  • Epigenome*
  • Fatty Liver / etiology
  • Fatty Liver / genetics*
  • Fatty Liver / pathology
  • Gene Expression Regulation
  • Liver / metabolism*
  • Liver / pathology
  • Male
  • Mice
  • Mice, Inbred C57BL
  • RNA / genetics*
  • Transcription, Genetic

Substances

  • Biomarkers
  • RNA
  • N-methyladenosine
  • Adenosine