Cited by 318vaccines and immunoinformatics approachesSARS-CoV-2 and COVID-19 ResearchImmunotherapy and Immune Responses

Unbiased Screens Show CD8+ T Cells of COVID-19 Patients Recognize Shared Epitopes in SARS-CoV-2 that Largely Reside outside the Spike Protein

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Ferretti, Andrew P., Kula, Tomasz, Wang, Yifan, Nguyen, Dalena M.V., Weinheimer, Adam, Dunlap, Garrett S., Xu, Qikai, Nabilsi, Nancy +11 more·2020·Immunity

Published version of a preprint

Abstract

Developing effective strategies to prevent or treat coronavirus disease 2019 (COVID-19) requires understanding the natural immune response to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). We used an unbiased, genome-wide screening technology to determine the precise peptide sequences in SARS-CoV-2 that are recognized by the memory CD8+ T cells of COVID-19 patients. In total, we identified 3-8 epitopes for each of the 6 most prevalent human leukocyte antigen (HLA) types. These epitopes were broadly shared across patients and located in regions of the virus that are not subject to mutational variation. Notably, only 3 of the 29 shared epitopes were located in the spike protein, whereas most epitopes were located in ORF1ab or the nucleocapsid protein. We also found that CD8+ T cells generally do not cross-react with epitopes in the four seasonal coronaviruses that cause the common cold. Overall, these findings can inform development of next-generation vaccines that better recapitulate natural CD8+ T cell immunity to SARS-CoV-2.

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Authors
Ferretti, A. P., Kula, T., Wang, Y., Nguyen, D. M. V., Weinheimer, A., Dunlap, G. S., Xu, Q., Nabilsi, N., Perullo, C. R., Cristofaro, A. W., Whitton, H. J., Virbasius, A., Olivier, K. J., Buckner, L. R., Alistar, A. T., Whitman, E. D., Bertino, S. A., Chattopadhyay, S., & MacBeath, G.
Affiliations
  • TScan Therapeutics (United States) (US)
  • Ochsner Medical Center (US)
  • Atlantic Health System (US)
Corresponding author
MacBeath, Gavin
Venue
Immunity
Publisher
Elsevier BV
Published
2020-11
Volume
53
Issue
5
Pages
1095-1107.e3
ISSN
1074-7613 (ISSN-L)
OpenAlex
W3093824751
Cited by
318
References
41
Citations by year
2026: 10 · 2025: 19 · 2024: 37 · 2023: 57 · 2022: 85 · 2021: 99 · 2020: 11
FWCI
20.44
Type
journal article
Language
en
Open access
Locations
  • Immunity (publishedVersion)
  • medRxiv (acceptedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
TScan
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › vaccines and immunoinformatics approaches
  • Health Sciences › Medicine › Infectious Diseases › SARS-CoV-2 and COVID-19 Research
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotherapy and Immune Responses
Keywords
COVID-19 pandemic, SARS-CoV-2, CD8+ T cells, T cell epitopes, shared epitope, HLA types, spike protein, ORF1ab, nucleocapsid protein, vaccine design, natural immune response
MeSH terms
Betacoronavirus, COVID-19, SARS-CoV-2, Coronavirus Nucleocapsid Proteins, Adult, Aged, Convalescence, Female, Humans, Immunologic Memory, Male, Middle Aged, Phosphoproteins, Pneumonia, Viral, Viral Proteins, Immunodominant Epitopes, Coronavirus, Coronavirus Infections, CD8-Positive T-Lymphocytes, Epitope Mapping, Epitopes, T-Lymphocyte, Nucleocapsid Proteins, Polyproteins, Young Adult, Pandemics, Spike Glycoprotein, Coronavirus

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