Journal
INTERNATIONAL JOURNAL OF MEDICAL MICROBIOLOGY
Volume 304, Issue 2, Pages 170-176Publisher
ELSEVIER GMBH, URBAN & FISCHER VERLAG
DOI: 10.1016/j.ijmm.2013.11.011
Keywords
Chronic infections; S. aureus host cell invasion; Phagosomal escape; Intracellular bacterial persistence; Immune escape
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Funding
- [SFTR34/C12]
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S. aureus is a frequent cause of chronic and therapy-refractory infections. The ability of S. aureus to invade different types of non-professional phagocytes, to escape from the host lysosomal degradation machinery and to persist within the intracellular location for long time periods are most likely essential steps in pathogenesis. During the course from acute to chronic infection the bacteria need to dynamically react to the environmental changes and to adapt to the intracellular environment. In this context the bacteria change to SCV-like phenotypes that exhibit some characteristics of stable SCV-mutants, like upregulation of adhesins and downregulation of toxins. The exact formation mechanism and further typical features of these dynamically forming SCVs are largely unknown. In this review, recent data on the essential steps to establish chronic infections will be summarized and the clinical consequences of the dynamic bacterial adaptation mechanisms will be discussed. (C) 2013 Elsevier GmbH. All rights reserved.
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