Robust SARS-CoV-2 T cell responses with common TCRαβ motifs toward COVID-19 vaccines in patients with hematological malignancy impacting B cells

Thi H O Nguyen, Louise C Rowntree, Lilith F Allen, Brendon Y Chua, Lukasz Kedzierski, Chhay Lim, Masa Lasica, G Surekha Tennakoon, Natalie R Saunders, Megan Crane, Lynette Chee, John F Seymour, Mary Ann Anderson, Ashley Whitechurch, E Bridie Clemens, Wuji Zhang, So Young Chang, Jennifer R Habel, Xiaoxiao Jia, Hayley A McQuiltenAnastasia A Minervina, Mikhail V Pogorelyy, Priyanka Chaurasia, Jan Petersen, Tejas Menon, Luca Hensen, Jessica A Neil, Francesca L Mordant, Hyon-Xhi Tan, Aira F Cabug, Adam K Wheatley, Stephen J Kent, Kanta Subbarao, Theo Karapanagiotidis, Han Huang, Lynn K Vo, Natalie L Cain, Suellen Nicholson, Florian Krammer, Grace Gibney, Fiona James, Janine M Trevillyan, Jason A Trubiano, Jeni Mitchell, Britt Christensen, Katherine A Bond, Deborah A Williamson, Jamie Rossjohn, Jeremy Chase Crawford, Paul G Thomas, Karin A Thursky, Monica A Slavin, Constantine S Tam, Benjamin W Teh*, Katherine Kedzierska*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Immunocompromised hematology patients are vulnerable to severe COVID-19 and respond poorly to vaccination. Relative deficits in immunity are, however, unclear, especially after 3 vaccine doses. We evaluated immune responses in hematology patients across three COVID-19 vaccination doses. Seropositivity was low after a first dose of BNT162b2 and ChAdOx1 (∼26%), increased to 59%-75% after a second dose, and increased to 85% after a third dose. While prototypical antibody-secreting cells (ASCs) and T follicular helper (Tfh) cell responses were elicited in healthy participants, hematology patients showed prolonged ASCs and skewed Tfh2/17 responses. Importantly, vaccine-induced expansions of spike-specific and peptide-HLA tetramer-specific CD4+/CD8+ T cells, together with their T cell receptor (TCR) repertoires, were robust in hematology patients, irrespective of B cell numbers, and comparable to healthy participants. Vaccinated patients with breakthrough infections developed higher antibody responses, while T cell responses were comparable to healthy groups. COVID-19 vaccination induces robust T cell immunity in hematology patients of varying diseases and treatments irrespective of B cell numbers and antibody response.

Original languageEnglish
Article number101017
Pages (from-to)1-22
Number of pages22
JournalCell reports. Medicine
Volume4
Issue number4
DOIs
Publication statusPublished - 18 Apr 2023

Keywords

  • Humans
  • Receptors, Antigen, T-Cell, alpha-beta
  • COVID-19 vaccines
  • SARS-CoV-2
  • BNT162 vaccine
  • CD8-positive T-lymphocytes
  • COVID-19
  • Hematologic neoplasms

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