Journal
EUROPEAN JOURNAL OF CELL BIOLOGY
Volume 89, Issue 1, Pages 103-111Publisher
ELSEVIER GMBH
DOI: 10.1016/j.ejcb.2009.10.005
Keywords
Staphylococcus epidermidis; Biofilm; Polysaccharides; Polysaccharide intercellular adhesin; Structure; icaADBC; Foreign material-associated infections; Virulence
Categories
Funding
- Deutsche Forschungsgemeinschaft [SFB 470, Ro2413/3-1]
- Forschungsforderungsfonds of the Universitatsklinikum Hamburg-Eppendorf [F-152]
- Medical Research Council [G0801929] Funding Source: researchfish
- MRC [G0801929] Funding Source: UKRI
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Staphylococcus epidermidis is of major importance in infections associated with indwelling medical devices. The tight pathogenic association is essentially linked to the species ability to form adherent biofilms on artificial surfaces. Aiming at identifying novel targets for vaccination or therapy much effort has been made to unravel the molecular mechanisms leading to S. epidermidis biofilm formation. At present, polysaccharide intercellular adhesin (PIA) is the best studied factor involved in S. epidermidis biofilm accumulation. PIA is a glycan of beta-1,6-linked 2-acetamido-2-deoxy-D-glucopyranosyl residues of which 15 % are non-N-acetylated. PIA-producing S. epidermidis are widespread in clinical strain collections and PIA synthesis has been shown to be essential for S. epidermidis virulence. Moreover, PIA homologues have been identified in many other staphylococcal species, including the major human pathogen Staphylococcus aureus, and also Gram-negative human pathogens, suggesting that it might represent a more general pathogenicity principle in biofilm-related infections. In this review the current knowledge about the structure and biosynthesis of PIA is summarized. Additionally, information on its role in pathogenesis of biomaterial-related and other type of infections and the potential use of PIA and related compounds for prevention of infection is discussed. (C) 2009 Elsevier GmbH. All rights reserved.
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