Optimization of 4-arylthiophene-3-carboxylic acid derivatives as inhibitors of ANO1: Lead optimization studies toward their analgesic efficacy for inflammatory pain
作者:Yuxi Wang、Xiaoyue Hu、Han Huang、Zefang Jin、Jian Gao、Yi Guo、Yi Zhong、Zhongtang Li、Xiaolin Zong、Kewei Wang、Liangren Zhang、Zhenming Liu
DOI:10.1016/j.ejmech.2022.114413
日期:2022.7
further induced neural depolarization. Downregulation of ANO1 reduced hyperalgesia and allodynia caused by inflammation and nerve injury. Here we developed a series of 4-arylthiophene-3-carboxylic acid derivatives for proof-of-concept studies of ANO1-targeted analgesia. These efforts led to the identification of the compound DFBTA, 4-(4-chlorophenyl)-2-(2,5-difluorobenzamido)thiophene-3-carboxylic
目前的疼痛管理主要限于阿片类药物和非甾体抗炎药。开发新的镇痛药物对于解决慢性疼痛患者未满足的医疗需求仍然很重要。钙激活氯化物通道 anoctamin-1 (ANO1) 是一种潜在的镇痛靶点。ANO1 被周围感觉神经元中的有害刺激激活并进一步诱导神经去极化。ANO1 的下调减少了由炎症和神经损伤引起的痛觉过敏和异常性疼痛。在这里,我们开发了一系列 4-芳基噻吩-3-羧酸衍生物,用于 ANO1 靶向镇痛的概念验证研究。这些努力导致了化合物 DFBTA 的鉴定,即 4-(4-氯苯基)-2-(2,5-二氟苯甲酰氨基)噻吩-3-羧酸,它显示出显着的 ANO1 抑制作用,IC 5024纳米。DFBTA 表现出非常弱的细胞毒性、心脏毒性和急性毒性(HEK293 增殖 IC 50 > 30 μM,hERG IC 50 > 30 μM,小鼠最小致死剂量,MLD>1000 mg/kg),以及具有口服生物利用度的优异药代动力学特性