期刊
MICROORGANISMS
卷 11, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/microorganisms11030664
关键词
complement system; Pseudomonas aeruginosa; immune evasion; bloodstream infection
类别
The increasing emergence of multidrug resistant isolates of P. aeruginosa causes major problems in hospitals worldwide. However, the complement system in blood plays a significant role in defense against this pathogen. P. aeruginosa has various strategies to resist complement attack, and understanding these interactions is crucial for the development of drugs to counteract bacterial evasion mechanisms.
The increasing emergence of multidrug resistant isolates of P. aeruginosa causes major problems in hospitals worldwide. This concern is particularly significant in bloodstream infections that progress rapidly, with a high number of deaths within the first hours and without time to select the most appropriate treatment. In fact, despite improvements in antimicrobial therapy and hospital care, P. aeruginosa bacteremia remains fatal in about 30% of cases. The complement system is a main defensive mechanism in blood against this pathogen. This system can mark bacteria for phagocytosis or directly lyse it via the insertion of a membrane attack complex in the bacterial membrane. P. aeruginosa exploits different strategies to resist complement attack. In this review for the special issue on bacterial pathogens associated with bacteriemia, we present an overview of the interactions between P. aeruginosa and the complement components and strategies used by this pathogen to prevent recognition and killing by the complement system. A thorough understanding of these interactions will be critical in order to develop drugs to counteract bacterial evasion mechanisms.
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