Discovery of highly potent human glutaminyl cyclase (QC) inhibitors as anti-Alzheimer's agents by the combination of pharmacophore-based and structure-based design
作者:Nguyen Van Manh、Van-Hai Hoang、Van T.H. Ngo、Jihyae Ann、Tae-ho Jang、Jung-Hye Ha、Jae Young Song、Hee-Jin Ha、Hee Kim、Young-Ho Kim、Jiyoun Lee、Jeewoo Lee
DOI:10.1016/j.ejmech.2021.113819
日期:2021.12
tested compounds, the cyclopentylmethyl derivative (214) exhibited the most potent in vitro activity (IC50 = 0.1 nM), while benzimidazole (227) showed the most promising in vivo efficacy, selectivity and druggable profile. 227 significantly reduced the concentration of pyroform Aβ and total Aβ in the brain of an AD animal model and improved the alternation behavior of mice during Y-maze tests. The crystal
谷氨酰胺酰环化酶 (QC) 的抑制可能通过减少AD 患者大脑中有毒的 β-淀粉样蛋白 (Aβ N3pE )的量来为治疗早期阿尔茨海默病 (AD) 提供有希望的策略。在这项工作中,我们确定了有效的 QC 抑制剂,其 IC 50值比 PQ912 高出 290 倍,而 PQ912 目前正在 II 期临床试验中进行测试。 在测试的化合物中,环戊基甲基衍生物 ( 214 ) 表现出最有效的体外活性 (IC 50 = 0.1 nM),而苯并咪唑 ( 227 ) 表现出最有希望的体内功效、选择性和成药特性。227显着降低了AD动物模型大脑中pyroform Aβ和总Aβ的浓度,并改善了小鼠在Y迷宫测试中的交替行为。与214复合的人 QC ( h QC)的晶体结构表明在活性位点紧密结合,支持 QC 的特异性抑制导致有效的体外和体内活性。考虑到靶向 Aβ 的 donanemab 最近的临床成功N3pE,基于小分子的