CELF1 contributes to aberrant alternative splicing patterns in the type 1 diabetic heart

Karry Anne Belanger, Curtis A. Nutter, Jin Li, Sadia Tasnim, Peiru Liu, Peng Yu, Neslihan Martinez

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Dysregulated alternative splicing (AS) that contributes to diabetes pathogenesis has been identified, but little is known about the RNA binding proteins (RBPs) involved. We have previously found that the RBP CELF1 is upregulated in the diabetic heart; however, it is unclear if CELF1 contributes to diabetes-induced AS changes. Utilizing genome wide approaches, we identified extensive changes in AS patterns in Type 1 diabetic (T1D) mouse hearts. We discovered that many aberrantly spliced genes in T1D hearts have CELF1 binding sites. CELF1-regulated AS affects key genes within signaling pathways relevant to diabetes pathogenesis. Disruption of CELF1 binding sites impairs AS regulation by CELF1. In sum, our results indicate that CELF1 target RNAs are aberrantly spliced in the T1D heart leading to abnormal gene expression. These discoveries pave the way for targeting RBPs and their RNA networks as novel therapies for cardiac complications of diabetes.

Original languageEnglish (US)
Pages (from-to)3205-3211
Number of pages7
JournalBiochemical and Biophysical Research Communications
Volume503
Issue number4
DOIs
StatePublished - Sep 18 2018

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Keywords

  • Alternative splicing
  • CELF1
  • Diabetic heart
  • RNA binding proteins

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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