期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 22, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/ijms22084042
关键词
Klebsiella pneumoniae; anti-microbial resistance; vaccines; monoclonal antibodies
资金
- GlaxoSmithKline Biologicals SA
Klebsiella pneumoniae is an opportunistic pathogen that has recently seen an increase in hypervirulent strains and multi-drug resistant clones. It has been prioritized as a critical antimicrobial resistance threat by the World Health Organization, leading to renewed interest in vaccine development and alternative treatments.
Klebsiella pneumoniae (Kp) is an opportunistic pathogen and the leading cause of healthcare-associated infections, mostly affecting subjects with compromised immune systems or suffering from concurrent bacterial infections. However, the dramatic increase in hypervirulent strains and the emergence of new multidrug-resistant clones resulted in Kp occurrence among previously healthy people and in increased morbidity and mortality, including neonatal sepsis and death across low- and middle-income countries. As a consequence, carbapenem-resistant and extended spectrum beta-lactamase-producing Kp have been prioritized as a critical anti-microbial resistance threat by the World Health Organization and this has renewed the interest of the scientific community in developing a vaccine as well as treatments alternative to the now ineffective antibiotics. Capsule polysaccharide is the most important virulence factor of Kp and plays major roles in the pathogenesis but its high variability (more than 100 different types have been reported) makes the identification of a universal treatment or prevention strategy very challenging. However, less variable virulence factors such as the O-Antigen, outer membrane proteins as fimbriae and siderophores might also be key players in the fight against Kp infections. Here, we review elements of the current status of the epidemiology and the molecular pathogenesis of Kp and explore specific bacterial antigens as potential targets for both prophylactic and therapeutic solutions.
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