Progress towards the development of Klebsiella vaccines

Introduction: Klebsiella pneumoniae (KP) are a leading cause of healthcare-associated infections. The dramatic increase in microbial resistance to third-generation cephalosporin and carbapenem ‘front line’ antimicrobial agents and the paucity of new antimicrobials have left clinicians with few thera...

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Main Authors: Myeongjin Choi, Sharon M Tennant, Raphael Simon, Alan S Cross
Format: Article
Language:English
Published: Taylor & Francis Group 2019-07-01
Series:Expert Review of Vaccines
Subjects:
Online Access:http://dx.doi.org/10.1080/14760584.2019.1635460
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author Myeongjin Choi
Sharon M Tennant
Raphael Simon
Alan S Cross
author_facet Myeongjin Choi
Sharon M Tennant
Raphael Simon
Alan S Cross
author_sort Myeongjin Choi
collection DOAJ
description Introduction: Klebsiella pneumoniae (KP) are a leading cause of healthcare-associated infections. The dramatic increase in microbial resistance to third-generation cephalosporin and carbapenem ‘front line’ antimicrobial agents and the paucity of new antimicrobials have left clinicians with few therapeutic options and resulted in increased morbidity and mortality. Vaccines may reduce the incidence of infections thereby reducing the necessity for antimicrobials and are not subject to antimicrobial resistance mechanisms. Areas covered: We review whole cell, subunit, capsular polysaccharide (CPS), O polysaccharide (OPS) and conjugate vaccines against KP infection, as well as alternative KP vaccine platforms. Expert opinion: Vaccine-induced antibodies to KP CPS have been protective in preclinical studies, but the number of CPS types (>77) makes vaccines against this virulence factor less feasible. Since four OPS serotypes account of ~80% of invasive KP infections and anti-OPS antibodies are also protective in preclinical studies, both OPS-based conjugate and multiple antigen presenting system (MAPS) vaccines are in active development. Vaccines based on other KP virulence factors, such as outer membrane proteins, type 3 fimbriae (MrkA) and siderophores are at earlier stages of development. Novel strategies for the clinical testing of KP vaccines need to be developed.
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spelling doaj.art-77c00aa0a9cf45e3a3c6c9c62fec279b2023-09-20T10:18:04ZengTaylor & Francis GroupExpert Review of Vaccines1476-05841744-83952019-07-0118768169110.1080/14760584.2019.16354601635460Progress towards the development of Klebsiella vaccinesMyeongjin Choi0Sharon M Tennant1Raphael Simon2Alan S Cross3University of Maryland School of MedicineUniversity of Maryland School of MedicineUniversity of Maryland School of MedicineUniversity of Maryland School of MedicineIntroduction: Klebsiella pneumoniae (KP) are a leading cause of healthcare-associated infections. The dramatic increase in microbial resistance to third-generation cephalosporin and carbapenem ‘front line’ antimicrobial agents and the paucity of new antimicrobials have left clinicians with few therapeutic options and resulted in increased morbidity and mortality. Vaccines may reduce the incidence of infections thereby reducing the necessity for antimicrobials and are not subject to antimicrobial resistance mechanisms. Areas covered: We review whole cell, subunit, capsular polysaccharide (CPS), O polysaccharide (OPS) and conjugate vaccines against KP infection, as well as alternative KP vaccine platforms. Expert opinion: Vaccine-induced antibodies to KP CPS have been protective in preclinical studies, but the number of CPS types (>77) makes vaccines against this virulence factor less feasible. Since four OPS serotypes account of ~80% of invasive KP infections and anti-OPS antibodies are also protective in preclinical studies, both OPS-based conjugate and multiple antigen presenting system (MAPS) vaccines are in active development. Vaccines based on other KP virulence factors, such as outer membrane proteins, type 3 fimbriae (MrkA) and siderophores are at earlier stages of development. Novel strategies for the clinical testing of KP vaccines need to be developed.http://dx.doi.org/10.1080/14760584.2019.1635460klebsiella pneumoniaeantimicrobial resistancevaccineconjugate vaccineo polysaccharidecapsular polysaccharidemaps vaccine
spellingShingle Myeongjin Choi
Sharon M Tennant
Raphael Simon
Alan S Cross
Progress towards the development of Klebsiella vaccines
Expert Review of Vaccines
klebsiella pneumoniae
antimicrobial resistance
vaccine
conjugate vaccine
o polysaccharide
capsular polysaccharide
maps vaccine
title Progress towards the development of Klebsiella vaccines
title_full Progress towards the development of Klebsiella vaccines
title_fullStr Progress towards the development of Klebsiella vaccines
title_full_unstemmed Progress towards the development of Klebsiella vaccines
title_short Progress towards the development of Klebsiella vaccines
title_sort progress towards the development of klebsiella vaccines
topic klebsiella pneumoniae
antimicrobial resistance
vaccine
conjugate vaccine
o polysaccharide
capsular polysaccharide
maps vaccine
url http://dx.doi.org/10.1080/14760584.2019.1635460
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