Exploring Basic Tail Modifications of Coumarin-Based Dual Acetylcholinesterase-Monoamine Oxidase B Inhibitors: Identification of Water-Soluble, Brain-Permeant Neuroprotective Multitarget Agents
作者:Leonardo Pisani、Roberta Farina、Marco Catto、Rosa Maria Iacobazzi、Orazio Nicolotti、Saverio Cellamare、Giuseppe Felice Mangiatordi、Nunzio Denora、Ramon Soto-Otero、Lydia Siragusa、Cosimo Damiano Altomare、Angelo Carotti
DOI:10.1021/acs.jmedchem.6b00562
日期:2016.7.28
targets for Alzheimer’s disease (AD), i.e., acetylcholinesterase (AChE) and monoamine oxidase B (MAO B), a series of multitarget ligands was properly designed by linking the 3,4-dimethylcoumarin scaffold to 1,3- and 1,4-substituted piperidine moieties, thus modulating the basicity to improve the hydrophilic/lipophilic balance. After in vitro enzymatic inhibition assays, multipotent inhibitors showing potencies
为了调节阿尔茨海默氏病(AD)的两个关键酶标,即乙酰胆碱酯酶(AChE)和单胺氧化酶B(MAO B),通过将3,4-二甲基香豆素骨架与1,3连接起来,适当设计了一系列多目标配体-和1,4-取代的哌啶部分,从而调节碱性以改善亲水/亲脂平衡。经过体外酶抑制试验后,在基于人SH-SY5Y细胞的模型中确定并评估了分别对hMAO B和eeAChE表现出纳摩尔浓度和低微摩尔浓度效价的多能抑制剂,以其对氧化毒素的细胞毒性和神经保护作用(H 2 O 2,鱼藤酮和oligomycin-A)。本研究导致鉴定出具有高hMAO B抑制活性(IC 50 = 30 nM)和良好的MAO B / A选择性(选择性指数,SI = 94)以及微摩尔eeAChE抑制作用的有前途的多目标命中化合物(5b)(IC 50 = 1.03μM)。此外,5b表现为一种水溶性的,可透脑的神经保护剂,可抵抗氧化损伤,而不会与P-gp外排系统相互作用。