Article ; Online: Ipsilateral immunization after a prior SARS-CoV-2 mRNA vaccination elicits superior B cell responses compared to contralateral immunization.
2024 Volume 43, Issue 1, Page(s) 113665
Abstract: mRNA vaccines have proven to be pivotal in the fight against COVID-19. A recommended booster, given 3 to 4 weeks post the initial vaccination, can substantially amplify protective antibody levels. Here, we show that, compared to contralateral boost, ... ...
Abstract | mRNA vaccines have proven to be pivotal in the fight against COVID-19. A recommended booster, given 3 to 4 weeks post the initial vaccination, can substantially amplify protective antibody levels. Here, we show that, compared to contralateral boost, ipsilateral boost of the SARS-CoV-2 mRNA vaccine induces more germinal center B cells (GCBCs) specific to the receptor binding domain (RBD) and generates more bone marrow plasma cells. Ipsilateral boost can more rapidly generate high-affinity RBD-specific antibodies with improved cross-reactivity to the Omicron variant. Mechanistically, the ipsilateral boost promotes the positive selection and plasma cell differentiation of pre-existing GCBCs from the prior vaccination, associated with the expansion of T follicular helper cells. Furthermore, we show that ipsilateral immunization with an unrelated antigen after a prior mRNA vaccination enhances the germinal center and antibody responses to the new antigen compared to contralateral immunization. These findings propose feasible approaches to optimize vaccine effectiveness. |
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MeSH term(s) | Humans ; COVID-19 Vaccines ; SARS-CoV-2 ; COVID-19/prevention & control ; Immunization ; Vaccination ; RNA, Messenger/genetics ; Antibodies, Viral ; Antibodies, Neutralizing |
Chemical Substances | COVID-19 Vaccines ; RNA, Messenger ; Antibodies, Viral ; Antibodies, Neutralizing |
Language | English |
Publishing date | 2024-01-08 |
Publishing country | United States |
Document type | Journal Article ; Research Support, N.I.H., Extramural |
ZDB-ID | 2649101-1 |
ISSN | 2211-1247 ; 2211-1247 |
ISSN (online) | 2211-1247 |
ISSN | 2211-1247 |
DOI | 10.1016/j.celrep.2023.113665 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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