Exploring Structure–Activity Relationships of Niclosamide-Based Colistin Potentiators in Colistin-Resistant Gram-Negative Bacteria
作者:Liam Berry、Quinn Neale、Rajat Arora、Danyel Ramirez、Marc Brizuela、Ronald Domalaon、Gilbert Arthur、Frank Schweizer
DOI:10.3390/antibiotics13010043
日期:——
Colistin is primarily used as a last resort antibiotic against highly resistant Gram-negative bacteria (GNB). Rising rates of colistin resistance, however, may limit future use of this agent. The anthelmintic drug niclosamide has been shown to enhance colistin activity in combination therapy, but a detailed structure–activity relationship (SAR) for niclosamide against GNB has yet to be studied. A series
粘菌素主要用作针对高度耐药革兰氏阴性菌 (GNB) 的最后抗生素。然而,粘菌素耐药率的上升可能会限制该药物的未来使用。驱虫药氯硝柳胺已被证明在联合治疗中可增强粘菌素活性,但氯硝柳胺对 GNB 的详细构效关系 (SAR) 尚未研究。合成了一系列氯硝柳胺类似物进行 SAR,从而发现了一种先导化合物,该化合物显示出与氯硝柳胺相当的粘菌素增强活性,但细胞毒性降低。总体而言,这项工作为未来开发新型氯硝柳胺衍生物的合成策略提供了重要见解,并表明在维持粘菌素增强的同时可以降低对哺乳动物细胞的毒性。