vitro inhibitory activities against MAO-B. Within this series, derivative 3h emerged as the most interesting hit compound, being a moderate AChE inhibitor (IC50 = 8.99 µM) and a potent and selective MAO-B inhibitor (IC50 = 2.8 nM). Preliminary studies in human neuroblastoma SH-SY5Y cell lines demonstrated its low cytotoxicity and disclosed a promising neuroprotective effect at low doses (0.1 µM) under oxidative
对开发针对神经退行性综合症,尤其是阿尔茨海默氏病(AD)的真正的疾病缓解药物的需求,使研究转向可靠的药物发现策略,以揭示具有比单靶标药物更高的治疗功效的临床候选药物。通过遵循多目标方法,我们设计和合成了新型的双
乙酰胆碱酯酶(AChE)-单胺氧化酶B(MAO-B)
抑制剂,通过装饰2H-chromen-2-one骨架。在位置3带有
炔丙基胺部分的化合物在体外对MAO-B表现出最高的抑制活性。在该系列中,衍
生物3h成为最有趣的命中化合物,是中度AChE
抑制剂(IC50 = 8.99 µM)和有效且选择性的MAO-B
抑制剂(IC50 = 2.8 nM)。对人类神经母细胞瘤SH-SY5Y
细胞系的初步研究表明,它具有较低的细胞毒性,并揭示了在两种线粒体毒素(寡霉素-A和
鱼藤酮)促进的氧化应激条件下,低剂量(0.1 µM)下有希望的神经保护作用。在基于MAdin-Darby犬肾(MDCK)II-MDR1细