Cited by 288Viral Infections and Immunology ResearchT-cell and B-cell ImmunologyCardiac Fibrosis and Remodeling

The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.

PD-1 Protects against Inflammation and Myocyte Damage in T Cell-Mediated Myocarditis

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Abstract

PD-1, a member of the CD28 family of immune regulatory molecules, is expressed on activated T cells, interacts with its ligands, PD-L1/B7-H1 and PD-L2/B7-DC, on other cells, and delivers inhibitory signals to the T cell. We studied the role of this pathway in modulating autoreactive T cell responses in two models of myocarditis. In a CD8+ T cell-mediated adoptive transfer model, we found that compared with Pd1+/+ CD8+ T cells, Pd1−/− CD8+ T cells cause enhanced disease, with increased inflammatory infiltrate, particularly rich in neutrophils. Additionally, we show enhanced proliferation in vivo and enhanced cytotoxic activity of PD-1–deficient T lymphocytes against myocardial endothelial cells in vitro. In experimental autoimmune myocarditis, a disease model dependent on CD4+ T cells, we show that mice lacking PD-1 develop enhanced disease compared with wild-type mice. PD-1–deficient mice displayed increased inflammation, enhanced serum markers of myocardial damage, and an increased infiltration of inflammatory cells, including CD8+ T cells. Together, these studies show that PD-1 plays an important role in limiting T cell responses in the heart.

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Metadata

Authors
Tarrio, M. L., Grabie, N., Bu, D.-X., Sharpe, A. H., & Lichtman, A. H.
Affiliations
Brigham and Women's Hospital (US)
Venue
The Journal of Immunology
Published
2012-05
Volume
188
Issue
10
Pages
4876-4884
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W2130852062
Cited by
288
References
43
Citations by year
2026: 20 · 2025: 21 · 2024: 27 · 2023: 24 · 2022: 31 · 2021: 32 · 2020: 29 · 2019: 26 · 2018: 26 · 2017: 21 · 2016: 12 · 2015: 5 · 2014: 5 · 2013: 6 · 2012: 3
FWCI
3.86
Type
journal article
Language
en
Open access
Locations
  • The Journal of Immunology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Brigham and Women's Hospital
  • National Institutes of Health (HL‐36028, HL56985)
  • National Heart, Lung, and Blood Institute (P50HL056985, R01 HL36028, P01HL036028, R01HL087282)
  • National Institute of Allergy and Infectious Diseases (R01AI040614, P01AI056299)
Topics
  • Health Sciences › Medicine › Infectious Diseases › Viral Infections and Immunology Research
  • Life Sciences › Immunology and Microbiology › Immunology › T-cell and B-cell Immunology
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiac Fibrosis and Remodeling
Keywords
PD-1, PD-L1, PD-L2, experimental autoimmune myocarditis, adoptive transfer, CD8+ T cells, CD4+ T cells, myocarditis, myocardial injury, neutrophils, T cell proliferation, cytotoxicity, immune checkpoint
MeSH terms
Amino Acid Sequence, Animals, Cell Movement, Cells, Cultured, Disease Models, Animal, Female, Inflammation, Male, Mice, Inbred BALB C, Mice, Inbred C57BL, Mice, Transgenic, Molecular Sequence Data, Myocarditis, T-Lymphocyte Subsets, Mice, Knockout, Coculture Techniques, Muscle Cells, Mice, Programmed Cell Death 1 Receptor

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