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Recruitment of highly cytotoxic CD8+ T cell receptors in mild SARS-CoV-2 infection

  • Karolin I. Wagner
  • , Laura M. Mateyka
  • , Sebastian Jarosch
  • , Vincent Grass
  • , Simone Weber
  • , Kilian Schober
  • , Monika Hammel
  • , Teresa Burrell
  • , Behnam Kalali
  • , Holger Poppert
  • , Henriette Beyer
  • , Sophia Schambeck
  • , Stefan Holdenrieder
  • , Andrea Strötges-Achatz
  • , Verena Haselmann
  • , Michael Neumaier
  • , Johanna Erber
  • , Alina Priller
  • , Sarah Yazici
  • , Hedwig Roggendorf
  • Marcus Odendahl, Torsten Tonn, Andrea Dick, Klaus Witter, Hrvoje Mijočević, Ulrike Protzer, Percy A. Knolle, Andreas Pichlmair, Claudia S. Crowell, Markus Gerhard, Elvira D'Ippolito, Dirk H. Busch
  • Technical University of Munich
  • Universitätsklinikum Erlangen
  • Helios Klinikum München West
  • Heidelberg University
  • Technischen Universität Dresden
  • Ludwig-Maximilians-Universität München
  • Partner Site Munich

Research output: Contribution to journalArticlepeer-review

38 Scopus citations

Abstract

T cell immunity is crucial for control of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and has been studied widely on a quantitative level. However, the quality of responses, in particular of CD8+ T cells, has only been investigated marginally so far. Here, we isolate T cell receptor (TCR) repertoires specific for immunodominant SARS-CoV-2 epitopes restricted to common human Leukocyte antigen (HLA) class I molecules in convalescent individuals. SARS-CoV-2-specific CD8+ T cells are detected up to 12 months after infection. TCR repertoires are diverse, with heterogeneous functional avidity and cytotoxicity toward virus-infected cells, as demonstrated for TCR-engineered T cells. High TCR functionality correlates with gene signatures that, remarkably, could be retrieved for each epitope:HLA combination analyzed. Overall, our data demonstrate that polyclonal and highly functional CD8+ TCRs—classic features of protective immunity—are recruited upon mild SARS-CoV-2 infection, providing tools to assess the quality of and potentially restore functional CD8+ T cell immunity.

Original languageEnglish
Article number110214
JournalCell Reports
Volume38
Issue number2
DOIs
StatePublished - 11 Jan 2022

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 3 - Good Health and Well-being
    SDG 3 Good Health and Well-being

Keywords

  • CD8 T cells
  • SARS-CoV-2 infection
  • T cell immunity
  • T cell receptor
  • TCR engineering
  • TCR identification
  • cytotoxic T cells
  • mild COVID-19
  • scRNA sequencing

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