期刊
ACS INFECTIOUS DISEASES
卷 2, 期 2, 页码 111-122出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsinfecdis.5b00092
关键词
antimicrobial peptides; antibiotics; antimicrobial resistance; Gram-negative; persisters; biofilm; burn infection
资金
- Department of Science and Technology (DST), Government of India [SR/S2/RJN-43/2009]
Infections caused by drug-resistant Gramnegative pathogens continue to be significant contributors to human morbidity. The recent advent of New Delhi metallo-beta-lactamase-1 (blaNDM-1) producing pathogens, against which few drugs remain active, has aggravated the problem even further. This paper shows that aryl-alkyl-lysines, membrane active small molecules, are effective in treating infections caused by Gram-negative pathogens. One of the compounds of the study was effective in killing planktonic cells as well as dispersing biofilms of Gram-negative pathogens. The compound was extremely effective in disrupting preformed biofilms and did not select resistant bacteria in multiple passages. The compound retained activity in different physiological conditions and did not induce any toxic effect in female Balb/c mice until concentrations of 17.5 mg/kg. In a murine model of Acinetobacter baumannii burn infection, the compound was able to bring the bacterial burden down significantly upon topical application for 7 days.
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