Discovery of Selective Inhibitors Targeting Acetylcholinesterase 1 from Disease-Transmitting Mosquitoes
作者:Cecilia Engdahl、Sofie Knutsson、Fredrik Ekström、Anna Linusson
DOI:10.1021/acs.jmedchem.6b00967
日期:2016.10.27
diverse, potent, and selective noncovalent AChE1 inhibitors were discovered. For example, a phenoxyacetamide-based inhibitor was identified with a 100-fold selectivity for the mosquito over the human enzyme. The compound also inhibited a resistance conferring mutant of AChE1. Structure–selectivity relationships could be proposed based on the enzymes’ 3D structures; the hits’ selectivity profiles appear
由于诸如疟疾和登革热等感染的重新出现和传播,对传播疾病的蚊子进行病媒控制越来越重要。我们进行了17,500种化合物的高通量筛选(HTS),用于抑制冈比亚按蚊和埃及伊蚊的必需AChE1酶。。在包括人类AChE在内的HTS差异分析中,发现了几种结构多样,有效和选择性的非共价AChE1抑制剂。例如,鉴定出基于苯氧乙酰胺的抑制剂对蚊子的选择性是对人类酶的100倍。该化合物还抑制了赋予AChE1的抗性突变体。可以根据酶的3D结构提出结构-选择性关系。匹配的选择性概况似乎与影响整个活动位点结构的两个回路的差异有关。AChE1的非共价抑制剂(如此处介绍的抑制剂)为杀虫剂提供了有价值的起点,并且是对现有和新型共价抑制剂的补充。