Myocardial Infarction-Associated Transcript, a Long Noncoding RNA, Is Overexpressed During Dilated Cardiomyopathy Due to Chronic Chagas Disease

J Infect Dis. 2016 Jul 1;214(1):161-5. doi: 10.1093/infdis/jiw095. Epub 2016 Mar 6.

Abstract

Long noncoding RNAs (lncRNAs) modulate gene expression at the epigenetic, transcriptional, and posttranscriptional levels. Dysregulation of the lncRNA known as myocardial infarction-associated transcript (MIAT) has been associated with myocardial infarction. Chagas disease causes a severe inflammatory dilated chronic cardiomyopathy (CCC). We investigated the role of MIAT in CCC. A whole-transcriptome analysis of heart biopsy specimens and formalin-fixed, paraffin-embedded samples revealed that MIAT was overexpressed in patients with CCC, compared with subjects with noninflammatory dilated cardiomyopathy and controls. These results were confirmed in a mouse model. Results suggest that MIAT is a specific biomarker of CCC.

Keywords: Chagas disease; MIAT; biomarker; cardiomyopathy; dilated; lncRNA.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Chagas Disease / complications*
  • Chagas Disease / genetics*
  • Chagas Disease / physiopathology
  • Female
  • Gene Expression Profiling*
  • Humans
  • Male
  • Mice
  • Myocardial Infarction / etiology*
  • Myocardial Infarction / genetics*
  • RNA, Long Noncoding*
  • Transcription Factors

Substances

  • RNA, Long Noncoding
  • Transcription Factors