Spike-directed vaccination elicits robust spike-specific T-cell response, including to mutant strains.
Cytotherapy 2021;
24:10-15. [PMID:
34483067 PMCID:
PMC8411349 DOI:
10.1016/j.jcyt.2021.07.006]
[Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/23/2021] [Accepted: 07/09/2021] [Indexed: 01/24/2023]
Abstract
Although most studies describing coronavirus disease 2019 vaccine responses have focused on antibodies, there is increasing evidence that T cells play a critical role. Here the authors evaluated T-cell responses in seronegative donors before and after vaccination to define responses to the severe acute respiratory syndrome coronavirus 2 reference strain as well as to mutations in the variant strains Alpha/B.1.1.7 and Beta/B.1.351. The authors observed enhanced T-cell responses to reference and variant spike strains post-vaccination.
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