期刊
INTERNATIONAL JOURNAL OF MEDICAL MICROBIOLOGY
卷 301, 期 5, 页码 408-416出版社
ELSEVIER GMBH
DOI: 10.1016/j.ijmm.2011.04.008
关键词
Aspergillosis; Mutant analyses; Profiling studies; Signal transduction; Stress adaptation
资金
- German Research Foundation [KR2294/1, GU769/1]
Aspergillus fumigatus as prime pathogen to cause aspergillosis has evolved as a saprophyte, but is also able to infect and colonise immunocompromised hosts. Based on the 'dual use hypothesis of fungal pathogenicity, general characteristics have to be considered as unspecific virulence determinants, among them stress adaptation capacities. The susceptible, warm-blooded mammalian host represents a specific ecological niche that poses several kinds of stress conditions to the fungus during the course of infection. Detailed knowledge about the cellular pathways and adaptive traits that have evolved in A. fumigants to counteract situations of stress and varying environmental conditions is crucial for the identification of novel and specific antifungal targets. Comprehensive profiling data accompanied by mutant analyses have shed light on such stressors, and nutritional deprivation. oxidative stress, hypoxia, elevated temperature, alkaline pH, extensive secretion, and, in particular during treatment with antifungals, cell membrane perturbations appear to represent the major hazards A. fumigants has to cope with during infection. Further efforts employing innovative approaches and advanced technologies will have to be made to expand our knowledge about the scope of the A. fumigants adaptome that is relevant for disease. (C) 2011 Elsevier GmbH. All rights reserved.
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