期刊
FUTURE MEDICINAL CHEMISTRY
卷 8, 期 3, 页码 257-269出版社
FUTURE SCI LTD
DOI: 10.4155/fmc.15.189
关键词
antibiotics; giant unilamellar vesicle; MRSA; NH125; two-component system
资金
- NIH [P01 AI083214]
Background: NH125, a known WalK inhibitor kills MRSA persisters. However, its precise mode of action is still unknown. Methods & results: The mode of action of NH125 was investigated by comparing its spectrum of antimicrobial activity and its effects on membrane permeability and giant unilamellar vesicles (GUVs) with walrycin B, a WalR inhibitor and benzyldimethylhexadecylammonium chloride (16-BAC), a cationic surfactant. NH125 killed persister cells of a variety of Staphylococcus aureus strains. Similar to 16-BAC, NH125 killed MRSA persisters by inducing rapid membrane permeabilization and caused the rupture of GUVs, whereas walrycin B did not kill MRSA persisters or induce membrane permeabilization and did not affect GUVs. Conclusion: NH125 kills MRSA persisters by interacting with and disrupting membranes in a detergent-like manner.
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