In vitro activity and potency of an intravenously injected antimicrobial peptide and its DL amino acid analog in mice infected with bacteria

被引:87
作者
Braunstein, A [1 ]
Papo, N [1 ]
Shai, Y [1 ]
机构
[1] Weizmann Inst Sci, Dept Biol Chem, IL-76100 Rehovot, Israel
关键词
D O I
10.1128/AAC.48.8.3127-3129.2004
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
We report that intravenous injection (3 mg/kg of body weight twice daily) of a diastereomer (containing 33% D amino acids) of an antimicrobial peptide, K6L9 (LKLLKKLLKKLLKLL-NH2), but not the all-L-amino-acid parental peptide, cures neutropenic mice infected with gentamicin-sensitive Pseudomonas aeruginosa and gentamicin-resistant Acinetobacter baumannii bacteria. Various biophysical experiments suggest a membranolytic-like effect.
引用
收藏
页码:3127 / 3129
页数:3
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