作　者：薛挺，赵丽萍，孙宝林

DOI: 10.1016/j.ijantimicag.2012.08.016

Abstract：

  Current treatment for Staphylococcus aureus infections relies heavily upon the cell wall synthesis inhibitor antibiotics such as penicillin, oxacillin, vancomycin and teicoplanin. Increasing antibiotic resistance requires the development of new approaches to combating infection. Autoinducer-2 (AI-2) exists widely both in Gram-negative and Gram-positive pathogens and is suggested as a universal language for intraspecies and interspecies communication. This study demonstrates the association between AI-2 signalling and cell wall synthesis inhibitor antibiotic susceptibility in S. aureus. In addition, a luxS mutant exhibited decreased autolysis and upregulated vancomycin resistance-associated VraRS two-component regulatory system. This finding may provide novel clues for antimicrobial therapy in S. aureus infection.

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