Human memory B cells show plasticity and adopt multiple fates upon recall response to SARS-CoV-2

Autor: Zurbuchen, Yves, Michler, Jan, Taeschler, Patrick, Adamo, Sarah, Cervia, Carlo, Raeber, Miro E., Acar, Ilhan E., Nilsson, Jakob, Warnatz, Klaus, Soyka, Michael, Moor, Andreas E., Boyman, Onur
Rok vydání: 2023
Předmět:
Zdroj: Nature Immunology, 24 (6)
ISSN: 1529-2916
1529-2908
DOI: 10.1038/s41590-023-01497-y
Popis: The B cell response to diferent pathogens uses tailored efector mechanisms and results in functionally specialized memory B (Bₘ) cell subsets, including CD21⁺ resting, CD21⁻CD27⁺ activated and CD21⁻CD27⁻Bₘ cells. The interrelatedness between these Bₘ cell subsets remains unknown. Here we showed that single severe acute respiratory syndrome coronavirus 2-specifc Bₘ cell clones showed plasticity upon antigen rechallenge in previously exposed individuals. CD21⁻Bₘ cells were the predominant subsets during acute infection and early after severe acute respiratory syndrome coronavirus 2-specifc immunization. At months 6 and 12 post-infection, CD21⁺ resting Bₘ cells were the major Bₘ cell subset in the circulation and were also detected in peripheral lymphoid organs, where they carried tissue residency markers. Tracking of individual B cell clones by B cell receptor sequencing revealed that previously fated Bₘ cell clones could rediferentiate upon antigen rechallenge into other Bₘ cell subsets, including CD21⁻CD27⁻Bₘ cells, demonstrating that single Bₘ cell clones can adopt functionally diferent trajectories.
Nature Immunology, 24 (6)
ISSN:1529-2908
ISSN:1529-2916
Databáze: OpenAIRE
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