Synthetic polymers active against Clostridium difficile vegetative cell growth and spore outgrowth.
Synthetic polymers active against Clostridium difficile vegetative cell growth and spore outgrowth.
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DOI：
10.1021/ja506798e
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发表时间：
2014-10-15
影响因子：
15
通讯作者：
McBride, Shonna M.
中科院分区：
文献类型：
--
作者：
Liu, Runhui;Suarez, Jose M.;Weisblum, Bernard;Gellman, Samuel H.;McBride, Shonna M.
Nylon-3 polymers (poly-β-peptides) have been investigated as synthetic mimics of host-defense peptides in recent years. These polymers are attractive because they are much easier to synthesize than are the peptides themselves, and the polymers resist proteolysis. Here we describe in vitro analysis of selected nylon-3 copolymers against Clostridium difficile, an important nosocomial pathogen that causes highly infectious diarrheal disease. The best polymers match the human host-defense peptide LL-37 in blocking vegetative cell growth and inhibiting spore outgrowth. The polymers and LL-37 were effective against both the epidemic 027 ribotype and the 012 ribotype. In contrast, neither vancomycin nor nisin inhibited outgrowth for the 012 ribotype. The best polymer was less hemolytic than LL-37. Overall, these findings suggest that nylon-3 copolymers may be useful for combatting C. difficle.
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