Development of a next generation pertussis vaccine: An unbiased biochemical approach to identify novel CD4+ T cell recognized antigens from <i>Bordetella pertussis</i>

نویسندگان

چکیده

Abstract Waning acellular pertussis vaccine (aPV) efficacy has brought about the reemergence of despite global coverage. Decreasing is correlated with emergence escape mutants lacking bacterial antigens expressed in current laboratory strains. Recent work shows that systemic and mucosal CD4+ T cells are necessary for improved increased duration immunity. However, recognized by these undefined. We hypothesize aPV-induced immunity will be addition new induce a strong cell response. Here we used natural antigen processing machinery mouse bone marrow derived dendritic to identify peptides from Bp strain Bp536 clinical isolate, H762, presented on MHC Class II. Bioinformatics analysis selected highest affinity both mice human The immunogenicity each peptide was tested ex vivo using ELISA an Activation Induced Marker (AIM) assay. stimulated splenic convalescent or whole (wPV) immunized PBMCs. This unbiased biochemical approach generated list Bp-specific II epitopes cells. These data suggest expresses multiple novel may improve protection when incorporated next generation aPV.

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ژورنال

عنوان ژورنال: Journal of Immunology

سال: 2023

ISSN: ['1550-6606', '0022-1767']

DOI: https://doi.org/10.4049/jimmunol.210.supp.223.15