Expansion of memory Vδ2 T cells following SARS-CoV-2 vaccination revealed by temporal single-cell transcriptomics

Autor: Sara Terzoli, Paolo Marzano, Valentina Cazzetta, Rocco Piazza, Inga Sandrock, Sarina Ravens, Likai Tan, Immo Prinz, Simone Balin, Michela Calvi, Anna Carletti, Assunta Cancellara, Nicolò Coianiz, Sara Franzese, Alessandro Frigo, Antonio Voza, Francesca Calcaterra, Clara Di Vito, Silvia Della Bella, Joanna Mikulak, Domenico Mavilio
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: npj Vaccines, Vol 9, Iss 1, Pp 1-16 (2024)
Druh dokumentu: article
ISSN: 2059-0105
DOI: 10.1038/s41541-024-00853-9
Popis: Abstract γδ T cells provide rapid cellular immunity against pathogens. Here, we conducted matched single-cell RNA-sequencing and γδ-TCR-sequencing to delineate the molecular changes in γδ T cells during a longitudinal study following mRNA SARS-CoV-2 vaccination. While the first dose of vaccine primes Vδ2 T cells, it is the second administration that significantly boosts their immune response. Specifically, the second vaccination uncovers memory features of Vδ2 T cells, shaped by the induction of AP-1 family transcription factors and characterized by a convergent central memory signature, clonal expansion, and an enhanced effector potential. This temporally distinct effector response of Vδ2 T cells was also confirmed in vitro upon stimulation with SARS-CoV-2 spike-peptides. Indeed, the second challenge triggers a significantly higher production of IFNγ by Vδ2 T cells. Collectively, our findings suggest that mRNA SARS-CoV-2 vaccination might benefit from the establishment of long-lasting central memory Vδ2 T cells to confer protection against SARS-CoV-2 infection.
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