Highly Active Modulators of Indole Signaling Alter Pathogenic Behaviors in Gram‐Negative and Gram‐Positive Bacteria
作者:Marine J. Minvielle、Kristen Eguren、Christian Melander
DOI:10.1002/chem.201303510
日期:2013.12.16
Indole is a universal signal that regulates various bacterial behaviors, such as biofilm formation and antibiotic resistance. To generate mechanistic probes of indole signaling and control indole‐mediated pathogenic phenotypes in both Gram‐positive and Gram‐negative bacteria, we have investigated the use of desformylflustrabromine (dFBr) derivatives to generate highly active indole mimetics. We have
吲哚是一种通用信号,可调节各种细菌行为,例如生物膜形成和抗生素耐药性。为了在革兰氏阳性菌和革兰氏阴性菌中产生吲哚信号传导的机制探针并控制吲哚介导的致病表型,我们研究了使用去甲酰氟溴铵 (dFBr) 衍生物来产生高活性吲哚模拟物。我们开发了非杀微生物的 dFBr 衍生物,在调节生物膜形成、运动性、耐酸性和抗生素耐药性方面,其活性是吲哚的 27-2000 倍。这些类似物的活性与吲哚相似,因为它们依赖于温度、色氨酸酶 TnaA 和转录调节因子 SdiA。