SARS-CoV-2 Epitopes Are Recognized by a Public and Diverse Repertoire of Human T Cell Receptors.
Immunity
; 53(6): 1245-1257.e5, 2020 12 15.
Article
in English
| MEDLINE | ID: covidwho-922005
Preprint
This scientific journal article is probably based on a previously available preprint. It has been identified through a machine matching algorithm, human confirmation is still pending.
See preprint
This scientific journal article is probably based on a previously available preprint. It has been identified through a machine matching algorithm, human confirmation is still pending.
See preprint
ABSTRACT
Understanding the hallmarks of the immune response to SARS-CoV-2 is critical for fighting the COVID-19 pandemic. We assessed antibody and T cell reactivity in convalescent COVID-19 patients and healthy donors sampled both prior to and during the pandemic. Healthy donors examined during the pandemic exhibited increased numbers of SARS-CoV-2-specific T cells, but no humoral response. Their probable exposure to the virus resulted in either asymptomatic infection without antibody secretion or activation of preexisting immunity. In convalescent patients, we observed a public and diverse T cell response to SARS-CoV-2 epitopes, revealing T cell receptor (TCR) motifs with germline-encoded features. Bulk CD4+ and CD8+ T cell responses to the spike protein were mediated by groups of homologous TCRs, some of them shared across multiple donors. Overall, our results demonstrate that the T cell response to SARS-CoV-2, including the identified set of TCRs, can serve as a useful biomarker for surveying antiviral immunity.
Keywords
Full text:
Available
Collection:
International databases
Database:
MEDLINE
Main subject:
CD4-Positive T-Lymphocytes
/
CD8-Positive T-Lymphocytes
/
Epitopes, T-Lymphocyte
/
Spike Glycoprotein, Coronavirus
/
SARS-CoV-2
/
COVID-19
Type of study:
Experimental Studies
/
Observational study
/
Randomized controlled trials
Limits:
Adolescent
/
Adult
/
Female
/
Humans
/
Male
/
Middle aged
/
Young adult
Language:
English
Journal:
Immunity
Journal subject:
Allergy and Immunology
Year:
2020
Document Type:
Article
Affiliation country:
J.immuni.2020.11.004
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