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Prior exposure to B. pertussis shapes the mucosal antibody response to acellular pertussis booster vaccination.

ABSTRACT: Bordetella pertussis (Bp), the causative agent of pertussis, continues to circulate despite widespread vaccination programs. An important question is whether and how (sub)clinical infections shape immune memory to Bp, particularly in populations primed with acellular pertussis vaccines (aP). Here, we examine the prevalence of mucosal antibodies against non-vaccine antigens in aP-primed children and adolescents of the BERT study (NCT03697798), using antibody binding to a Bp mutant strain lacking aP antigens (Bp_mut). Our study identifies increased levels of mucosal IgG and IgA binding to Bp_mut in older aP-primed individuals, suggesting different Bp exposure between aP-primed birth cohorts, in line with pertussis disease incidence data. To examine whether Bp exposure influences vaccination responses, we measured mucosal antibody responses to aP booster vaccination as a secondary study outcome. Although booster vaccination induces significant increases in mucosal antibodies to Bp in both cohorts, the older age group that had higher baseline antibodies to Bp_ mut shows increased persistence of antibodies after vaccination.

SUBMITTER: van Schuppen E

PROVIDER: S-EPMC9716536 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature

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Prior exposure to B. pertussis shapes the mucosal antibody response to acellular pertussis booster vaccination.

van Schuppen Evi E Fröberg Janeri J Venkatasubramanian Prashanna Balaji PB Versteegen Pauline P de Graaf Hans H Holubová Jana J Gillard Joshua J van Gageldonk Pieter G M PGM Joosten Irma I de Groot Ronald R Šebo Peter P Berbers Guy A M GAM Read Robert C RC Huynen Martijn A MA de Jonge Marien I MI Diavatopoulos Dimitri A DA

Nature communications 20221202 1

Bordetella pertussis (Bp), the causative agent of pertussis, continues to circulate despite widespread vaccination programs. An important question is whether and how (sub)clinical infections shape immune memory to Bp, particularly in populations primed with acellular pertussis vaccines (aP). Here, we examine the prevalence of mucosal antibodies against non-vaccine antigens in aP-primed children and adolescents of the BERT study (NCT03697798), using antibody binding to a Bp mutant strain lacking ...[more]

PMID: 36460655

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Project description:BackgroundRecombinant pertussis vaccines inducing long-lasting immune responses could help to control the rise in pertussis. We here report on persisting antibody responses 2 and 3 years after booster vaccination with a new generation recombinant acellular pertussis vaccine.MethodsParticipants of a phase 2/3 randomised-controlled clinical trial with a monovalent pertussis vaccine containing genetically inactivated pertussis toxin (aPgen) or its tetanus and diphtheria toxoids combination (TdaPgen), or a chemically detoxified comparator vaccine (Tdapchem), (originally conducted between July and August 2015) were invited to participate in observational studies of persisting antibody responses 2 and 3 years after vaccination. Serum IgG against pertussis toxin (PT-IgG) and filamentous hemagglutinin (FHA-IgG) were assessed by ELISA, and PT-neutralising antibodies (PT-Nab) by Chinese Hamster Ovary cell assay.FindingsWaning of antibodies stabilised in aPgen and TdaPgen vaccinees 2 and 3 years after vaccination. Three years post-vaccination PT-neutralising antibodies remained 4·6-fold (95% Confidence Interval (CI) 2·6-8·1) and 3·7-fold (95% CI 2·2-6·1) higher, PT-IgG antibodies 3·0-fold (95% CI 2·2-4·1) and 2·5-fold (95% CI 1·9-3·3) higher, and FHA-IgG antibodies 1·8-fold (95% CI 1·3-2·5) and 1·6-fold (95% CI 1·2-2·1) higher than baseline in aPgen and TdaPgen recipients, respectively. In the Tdapchem group, PT-neutralising and PT-IgG and FHA-IgG antibodies were back at baseline levels 2 years post-vaccination. Three years post-vaccination seroconversion rates for PT-neutralising antibodies were 65·0% (95% CI 44·1-85·9) and 55·0% (95% CI 33·2-76·8) in aPgen and TdaPgen recipients, respectively.InterpretationConsidering the persistence of elevated antibody responses 3 years post-booster vaccination, genetically detoxified monovalent aPgen and TdaPgen vaccines can be expected to induce longer-lasting protection than chemically inactivated Tdap vaccines.FundingBioNet-Asia.

Dataset Information

Prior exposure to B. pertussis shapes the mucosal antibody response to acellular pertussis booster vaccination.

Publications

Prior exposure to B. pertussis shapes the mucosal antibody response to acellular pertussis booster vaccination.

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