Cited by 230Viral Infections and Immunology ResearchCardiac Fibrosis and RemodelingOcular Diseases and Behçet’s Syndrome

The DOI matches its Crossref record; 85 of the 88 references it cites were found in a registry or an index.

Cardiac myosin-Th17 responses promote heart failure in human myocarditis

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Abstract

In human myocarditis and its sequela dilated cardiomyopathy (DCM), the mechanisms and immune phenotype governing disease and subsequent heart failure are not known. Here, we identified a Th17 cell immunophenotype of human myocarditis/DCM with elevated CD4 + IL17 + T cells and Th17-promoting cytokines IL-6, TGF-β, and IL-23 as well as GM-CSF–secreting CD4 + T cells. The Th17 phenotype was linked with the effects of cardiac myosin on CD14 + monocytes, TLR2, and heart failure. Persistent heart failure was associated with high percentages of IL-17–producing T cells and IL-17–promoting cytokines, and the myocarditis/DCM phenotype included significantly low percentages of FOXP3 + Tregs, which may contribute to disease severity. We demonstrate a potentially novel mechanism in human myocarditis/DCM in which TLR2 peptide ligands from human cardiac myosin stimulated exaggerated Th17-related cytokines including TGF-β, IL-6, and IL-23 from myocarditic CD14 + monocytes in vitro, and an anti-TLR2 antibody abrogated the cytokine response. Our translational study explains how an immune phenotype may be initiated by cardiac myosin TLR ligand stimulation of monocytes to generate Th17-promoting cytokines and development of pathogenic Th17 cells in human myocarditis and heart failure, and provides a rationale for targeting IL-17A as a therapeutic option.

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Research works printed but not linked: 2

  1. Smith, 1991, Myosin-induced acute myocarditis is a T cell mediated disease, J Immunol, 147, 2141, 10.4049/jimmunol.147.7.2141 · DOI
  2. 10.1161/CIRCRESAHA.109.213157 · DOI · Paper page

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Metadata

Authors
Myers, J. M., Cooper, L. T., Kem, D. C., Stavrakis, S., Kosanke, S. D., Shevach, E. M., Fairweather, D., Stoner, J. A., Cox, C. J., & Cunningham, M. W.
Affiliations
  • University of Oklahoma Health Sciences Center (US)
  • Mayo Clinic in Florida (US)
  • Department of Medicine/Endocrinology,
  • Medicine/Cardiology, and
  • National Institutes of Health (US)
  • Johns Hopkins University (US)
Corresponding author
  • Cox, Carol J.
  • Cunningham, Madeleine W.
Venue
JCI Insight
Published
2016-06-16
Volume
1
Issue
9
ISSN
2379-3708 (ISSN-L)
OpenAlex
W2434470226
Cited by
230
References
88
Citations by year
2026: 22 · 2025: 26 · 2024: 33 · 2023: 34 · 2022: 24 · 2021: 29 · 2020: 24 · 2019: 16 · 2018: 12 · 2017: 9 · 2016: 1
FWCI
10.43
Type
journal article
Language
en
Open access
Locations
  • JCI Insight (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Heart Association (U54GM104938)
  • University of Oklahoma
  • University of Oklahoma Health Sciences Center
  • National Heart, Lung, and Blood Institute (R01HL135165, R56HL056267, R01HL111938, R01HL056267, R37HL035280)
  • National Institute of General Medical Sciences (U54GM104938)
  • National Institute of Allergy and Infectious Diseases (T32AI007633)
  • National Institute of Environmental Health Sciences (R21ES024414)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Viral Infections and Immunology Research
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
  • Health Sciences › Medicine › Ophthalmology › Ocular Diseases and Behçet’s Syndrome
Keywords
myocarditis, dilated cardiomyopathy, heart failure, Th17 cells, cardiac myosin, TLR2, CD14+ monocytes, IL-17, interleukin-6, TGF-beta, IL-23, GM-CSF, regulatory T cells, Foxp3, autoimmunity

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