Oral inactivated whole cell vaccine for mucosal immunization: ETVAX case study

Oral immunization is an effective strategy for inducing protective immunity against mucosal enteric pathogens. Although live-attenuated as well as subunit approaches have been explored for vaccination against enteric pathogens, inactivated whole bacterial cells may also be effective in introducing p...

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Main Authors: Richard I. Walker, A. Louis Bourgeois
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-03-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2023.1125102/full
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author Richard I. Walker
A. Louis Bourgeois
author_facet Richard I. Walker
A. Louis Bourgeois
author_sort Richard I. Walker
collection DOAJ
description Oral immunization is an effective strategy for inducing protective immunity against mucosal enteric pathogens. Although live-attenuated as well as subunit approaches have been explored for vaccination against enteric pathogens, inactivated whole bacterial cells may also be effective in introducing protective immunity. Successfully accomplishing this goal with inactivated whole bacterial cells will require that a complex antigenic repertoire be presented in controlled immunogenic amounts, in a safe and relatively simple and self-contained delivery format. The benefit from immunization with whole cell vaccines can be further enhanced through genetic engineering to over-express selected antigens and also by the use of mucosal adjuvants to direct a more robust immunologic response. These steps are being taken for the development of ETVAX, the most clinically advanced vaccine candidate against the major enteric pathogen, enterotoxigenic Escherichia coli (ETEC) with significant positive impact.
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spelling doaj.art-32f042d853254b87965c8029738a5c7b2023-03-02T06:25:46ZengFrontiers Media S.A.Frontiers in Immunology1664-32242023-03-011410.3389/fimmu.2023.11251021125102Oral inactivated whole cell vaccine for mucosal immunization: ETVAX case studyRichard I. WalkerA. Louis BourgeoisOral immunization is an effective strategy for inducing protective immunity against mucosal enteric pathogens. Although live-attenuated as well as subunit approaches have been explored for vaccination against enteric pathogens, inactivated whole bacterial cells may also be effective in introducing protective immunity. Successfully accomplishing this goal with inactivated whole bacterial cells will require that a complex antigenic repertoire be presented in controlled immunogenic amounts, in a safe and relatively simple and self-contained delivery format. The benefit from immunization with whole cell vaccines can be further enhanced through genetic engineering to over-express selected antigens and also by the use of mucosal adjuvants to direct a more robust immunologic response. These steps are being taken for the development of ETVAX, the most clinically advanced vaccine candidate against the major enteric pathogen, enterotoxigenic Escherichia coli (ETEC) with significant positive impact.https://www.frontiersin.org/articles/10.3389/fimmu.2023.1125102/fullimmunityoral immunizationadjuvantvaccineETEC vaccine
spellingShingle Richard I. Walker
A. Louis Bourgeois
Oral inactivated whole cell vaccine for mucosal immunization: ETVAX case study
Frontiers in Immunology
immunity
oral immunization
adjuvant
vaccine
ETEC vaccine
title Oral inactivated whole cell vaccine for mucosal immunization: ETVAX case study
title_full Oral inactivated whole cell vaccine for mucosal immunization: ETVAX case study
title_fullStr Oral inactivated whole cell vaccine for mucosal immunization: ETVAX case study
title_full_unstemmed Oral inactivated whole cell vaccine for mucosal immunization: ETVAX case study
title_short Oral inactivated whole cell vaccine for mucosal immunization: ETVAX case study
title_sort oral inactivated whole cell vaccine for mucosal immunization etvax case study
topic immunity
oral immunization
adjuvant
vaccine
ETEC vaccine
url https://www.frontiersin.org/articles/10.3389/fimmu.2023.1125102/full
work_keys_str_mv AT richardiwalker oralinactivatedwholecellvaccineformucosalimmunizationetvaxcasestudy
AT alouisbourgeois oralinactivatedwholecellvaccineformucosalimmunizationetvaxcasestudy