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J Infect Dis. 2003 Feb 15;187(4):625-30. Epub 2003 Feb 7.

Use of the quorum-sensing inhibitor RNAIII-inhibiting peptide to prevent biofilm formation in vivo by drug-resistant Staphylococcus epidermidis.

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  • 1Department of Human Microbiology, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel. nbalaban@ucdavis.edu

Abstract

Staphylococcus epidermidis is a frequent cause of infections associated with foreign bodies and indwelling medical devices. The bacteria are capable of surviving antibiotic treatment through encapsulation into biofilms. RNAIII-inhibiting peptide (RIP) is a heptapeptide that inhibits S. aureus pathogenesis by disrupting quorum-sensing mechanisms. In this study, RIP inhibited drug-resistant S. epidermidis biofilm formation through a mechanism similar to that evidenced for S. aureus. RIP is synergistic with antibiotics in eliminating 100% of graft-associated in vivo S. epidermidis infections, which suggests that RIP may be used to coat medical devices to prevent staphylococcal infections. Disruption of cell-cell communication can prevent infections associated with antibiotic-resistant strains.

PMID:
12599079
DOI:
10.1086/345879
[PubMed - indexed for MEDLINE]
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