Therapeutics That Promote Sympathetic Reinnervation Modulate the Inflammatory Response After Myocardial Infarction

Joseph J. Sepe, Ryan T. Gardner, Matthew R. Blake, Deja M. Brooks, Melanie A. Staffenson, Courtney B. Betts, Sam Sivagnanam, William Larson, Sushil Kumar, Richard G. Bayles, Haihong Jin, Michael S. Cohen, Lisa M. Coussens, Beth A. Habecker

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Myocardial infarction (MI) triggers an inflammatory response that transitions from pro-inflammatory to reparative over time. Restoring sympathetic nerves in the heart after MI prevents arrhythmias. This study investigated if reinnervation altered the immune response after MI. This study used quantitative multiplex immunohistochemistry to identify the immune cells present in the heart 2 weeks after ischemia-reperfusion. Two therapeutics stimulated reinnervation, preventing arrhythmias and shifting the immune response from inflammatory to reparative, with fewer pro-inflammatory macrophages and more regulatory T cells and reparative macrophages. Treatments did not alter macrophage phenotype in vitro, which suggested reinnervation contributed to the altered immune response.

Original languageEnglish (US)
Pages (from-to)915-930
Number of pages16
JournalJACC: Basic to Translational Science
Volume7
Issue number9
DOIs
StatePublished - Sep 2022

Keywords

  • inflammation
  • macrophages
  • multiplex IHC
  • myocardial infarction
  • sympathetic nervous system

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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