B cell receptor repertoire kinetics after SARS-CoV-2 infection and vaccination

Cell Rep. 2022 Feb 15;38(7):110393. doi: 10.1016/j.celrep.2022.110393. Epub 2022 Jan 31.

Abstract

B cells are important in immunity to both severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection and vaccination, but B cell receptor (BCR) repertoire development in these contexts has not been compared. We analyze serial samples from 171 SARS-CoV-2-infected individuals and 63 vaccine recipients and find the global BCR repertoire differs between them. Following infection, immunoglobulin (Ig)G1/3 and IgA1 BCRs increase, somatic hypermutation (SHM) decreases, and, in severe disease, IgM and IgA clones are expanded. In contrast, after vaccination, the proportion of IgD/M BCRs increase, SHM is unchanged, and expansion of IgG clones is prominent. VH1-24, which targets the N-terminal domain (NTD) and contributes to neutralization, is expanded post infection except in the most severe disease. Infection generates a broad distribution of SARS-CoV-2-specific clones predicted to target the spike protein, while a more focused response after vaccination mainly targets the spike's receptor-binding domain. Thus, the nature of SARS-CoV-2 exposure differentially affects BCR repertoire development, potentially informing vaccine strategies.

Keywords: B cell receptor repertoire; COVID-19; SARS-CoV-2 vaccination.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • B-Lymphocytes / immunology
  • BNT162 Vaccine / immunology
  • COVID-19 / immunology*
  • COVID-19 / prevention & control
  • Clonal Evolution
  • Humans
  • Immunoglobulin Heavy Chains / genetics
  • Immunoglobulin Heavy Chains / immunology
  • Immunoglobulin Isotypes / genetics
  • Immunoglobulin Isotypes / immunology
  • Immunoglobulin Variable Region / genetics
  • Immunoglobulin Variable Region / immunology
  • Kinetics
  • Receptors, Antigen, B-Cell / genetics
  • Receptors, Antigen, B-Cell / immunology*
  • SARS-CoV-2 / immunology
  • Severity of Illness Index
  • Somatic Hypermutation, Immunoglobulin / immunology
  • Spike Glycoprotein, Coronavirus / immunology
  • Vaccination*

Substances

  • Immunoglobulin Heavy Chains
  • Immunoglobulin Isotypes
  • Immunoglobulin Variable Region
  • Receptors, Antigen, B-Cell
  • Spike Glycoprotein, Coronavirus
  • spike protein, SARS-CoV-2
  • BNT162 Vaccine