Optimization of 4‐Substituted Benzenesulfonamide Scaffold To Reverse
<i>Acinetobacter baumannii</i>
Serum‐Adaptive Efflux Associated Antibiotic Tolerance
作者:Michaelle Chojnacki、Xufeng Cao、Mikaeel Young、Rebecca N. Fritz、Paul M. Dunman、Daniel P. Flaherty
DOI:10.1002/cmdc.202000328
日期:2020.9.16
susceptible to antibiotic therapy. Previously, we identified a sulfonamide‐containing scaffold molecule (ABEPI1) that reversed serum‐associated antibiotic tolerance in A. baumannii. Herein, we present structure‐activity relationship studies on 29 newly synthesized analogues. These molecules were characterized for their ability to potentiate multiple antibiotics in serum, reduce serum‐associated ethidium
由于多药和全药耐药率不断上升,鲍曼不动杆菌是一种急需公共卫生关注的院内病原体。在人血清中生长等环境因素的背景下,已知鲍曼不动杆菌显示适应性外排,其中大量外排相关基因被上调,导致外排介导的耐药菌株对抗生素敏感治疗。以前,我们发现了一种含有磺酰胺的支架分子(ABEPI1),可以逆转鲍曼不动杆菌血清相关的抗生素耐受性. 在此,我们对 29 种新合成的类似物进行构效关系研究。这些分子的特征在于它们能够增强血清中的多种抗生素,减少血清相关的溴化乙锭外流并使细菌细胞膜去极化。此外,还评估了它们对哺乳动物细胞的毒性。总的来说,这些分子可能代表了与新的和现有的抗生素联合使用来治疗鲍曼不动杆菌细菌感染的有前景的潜在佐剂。