Systems vaccinology identifies immunological correlates of SARS-CoV-2 vaccine response in solid organ transplant recipients

Abstract Solid-organ transplant (SOT) recipients are at enhanced risk of infection and to poorly respond to vaccination due to comorbidities and immunosuppression. We performed a systems vaccinology study in 59 kidney and 31 lung transplant recipients who received 3 doses of COVID-19 mRNA BNT162b2 v...

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Main Authors: Nicolas Gemander, Julika Neumann, Rafael Veiga, Isabelle Etienne, Teresa Prezzemolo, Delphine Kemlin, Pieter Pannus, Stéphanie Depickère, Véronique Olislagers, Inès Vu Duc, Alexandra Waegemans, Margaux Gerbaux, Leoni Bücken, Hafid Dahma, Charlotte Martin, Nicolas Dauby, Maria E. Goossens, Isabelle Desombere, Carlos P. Roca, Mathijs Willemsen, Stanislas Goriely, Alain Le Moine, Arnaud Marchant, Adrian Liston, Stephanie Humblet-Baron
Format: Article
Language:English
Published: Nature Portfolio 2025-07-01
Series:npj Vaccines
Online Access:https://doi.org/10.1038/s41541-025-01182-1
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Summary:Abstract Solid-organ transplant (SOT) recipients are at enhanced risk of infection and to poorly respond to vaccination due to comorbidities and immunosuppression. We performed a systems vaccinology study in 59 kidney and 31 lung transplant recipients who received 3 doses of COVID-19 mRNA BNT162b2 vaccine. We were able to characterize a baseline configuration associated with an effective humoral response to 3 doses, characterized by an innate and activated B cell profile, whereas a T cell signature was associated with a poorer response. We observed a distinct configuration associated with a detectable humoral response to 2 doses, partly mediated by double negative B cell subsets. These results suggest that, despite their immunosuppression, some SOT recipients can induce an effective humoral response to 3 doses of vaccine supported by a baseline configuration close to the healthy phenotype. Baseline immune phenotyping may help identify SOT recipients at the greatest risk of a poor vaccine response.
ISSN:2059-0105