iScience (Oct 2022)

Evidence of premature lymphocyte aging in people with low anti-spike antibody levels after BNT162b2 vaccination

  • Yapei Huang,
  • Juliana E. Shin,
  • Alexander M. Xu,
  • Changfu Yao,
  • Sandy Joung,
  • Min Wu,
  • Ruan Zhang,
  • Bongha Shin,
  • Joslyn Foley,
  • Simeon B. Mahov,
  • Matthew E. Modes,
  • Joseph E. Ebinger,
  • Matthew Driver,
  • Jonathan G. Braun,
  • Caroline A. Jefferies,
  • Tanyalak Parimon,
  • Chelsea Hayes,
  • Kimia Sobhani,
  • Akil Merchant,
  • Sina A. Gharib,
  • Stanley C. Jordan,
  • Susan Cheng,
  • Helen S. Goodridge,
  • Peter Chen

Journal volume & issue
Vol. 25, no. 10
p. 105209

Abstract

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Summary: SARS-CoV-2 vaccines have unquestionably blunted the overall impact of the COVID-19 pandemic, but host factors such as age, sex, obesity, and other co-morbidities can affect vaccine efficacy. We identified individuals in a relatively healthy population of healthcare workers (CORALE study cohort) who had unexpectedly low peak anti-spike receptor binding domain (S-RBD) antibody levels after receiving the BNT162b2 vaccine. Compared to matched controls, “low responders” had fewer spike-specific antibody-producing B cells after the second and third/booster doses. Moreover, their spike-specific T cell receptor (TCR) repertoire had less depth and their CD4+ and CD8+T cell responses to spike peptide stimulation were less robust. Single cell transcriptomic evaluation of peripheral blood mononuclear cells revealed activation of aging pathways in low responder B and CD4+T cells that could underlie their attenuated anti-S-RBD antibody production. Premature lymphocyte aging may therefore contribute to a less effective humoral response and could reduce vaccination efficacy.

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