期刊
ANNUAL REVIEW OF MICROBIOLOGY, VOL 73
卷 73, 期 -, 页码 481-+出版社
ANNUAL REVIEWS
DOI: 10.1146/annurev-micro-020518-115714
关键词
Acinetobacter; cell envelope; lipooligosaccharide; capsule; drug efflux; antibiotic resistance
类别
Acinetobacter baumannii has emerged as an important nosocomial pathogen, particularly for patients in intensive care units and with invasive indwelling devices. The most recent clinical isolates are resistant to several classes of clinically important antibiotics, greatly restricting the ability to effectively treat critically ill patients. The bacterial envelope is an important driver of A. baumannii disease, both at the level of battling against antibiotic therapy and at the level of protecting from host innate immune function. This review provides a comprehensive overview of key features of the envelope that interface with both the host and antimicrobial therapies. Carbohydrate structures that contribute to protecting from the host are detailed, and mutations that alter these structures, resulting in increased antimicrobial resistance, are explored. In addition, protein complexes involved in both intermicrobial and host-microbe interactions are described. Finally we discuss regulatory mechanisms that control the nature of the cell envelope and its impact on host innate immune function.
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