Evidence of SARS-CoV-2-Specific T-Cell-Mediated Myocarditis in a MIS-A Case.
CDR3 sequences
MIS-A
SARS-CoV-2
SARS-CoV-2 epitopes
T cell receptor (TCR)
cd-hit
myocarditis
Journal
Frontiers in immunology
ISSN: 1664-3224
Titre abrégé: Front Immunol
Pays: Switzerland
ID NLM: 101560960
Informations de publication
Date de publication:
2021
2021
Historique:
received:
17
09
2021
accepted:
23
11
2021
entrez:
27
12
2021
pubmed:
28
12
2021
medline:
7
1
2022
Statut:
epublish
Résumé
A 26-year-old otherwise healthy man died of fulminant myocarditis. Nasopharyngeal specimens collected premortem tested negative for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Histopathological evaluation of the heart showed myocardial necrosis surrounded by cytotoxic T-cells and tissue-repair macrophages. Myocardial T-cell receptor (TCR) sequencing revealed hyper-dominant clones with highly similar sequences to TCRs that are specific for SARS-CoV-2 epitopes. SARS-CoV-2 RNA was detected in the gut, supporting a diagnosis of multisystem inflammatory syndrome in adults (MIS-A). Molecular targets of MIS-associated inflammation are not known. Our data indicate that SARS-CoV-2 antigens selected high-frequency T-cell clones that mediated fatal myocarditis.
Identifiants
pubmed: 34956207
doi: 10.3389/fimmu.2021.779026
pmc: PMC8695925
doi:
Substances chimiques
RNA, Viral
0
Types de publication
Case Reports
Journal Article
Research Support, N.I.H., Intramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
779026Informations de copyright
Copyright © 2021 Vannella, Oguz, Stein, Pittaluga, Dikoglu, Kanwal, Ramelli, Briese, Su, Wu, Ramos-Benitez, Perez-Valencia, Babyak, Cha, Chung, Ylaya, Madathil, Saharia, Scalea, Tran, Herr, Kleiner, Hewitt, Notarangelo, Grazioli and Chertow.
Déclaration de conflit d'intérêts
Authors CO, LS and XW were employed by company Leidos Biomedical Research, Inc. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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