Synthesis, Binding, and Modeling Studies of New Cytisine Derivatives, as Ligands for Neuronal Nicotinic Acetylcholine Receptor Subtypes
作者:Bruno Tasso、Caterina Canu Boido、Emanuela Terranova、Cecilia Gotti、Loredana Riganti、Francesco Clementi、Roberto Artali、Gabriella Bombieri、Fiorella Meneghetti、Fabio Sparatore
DOI:10.1021/jm900225j
日期:2009.7.23
respectively. While the affinity for α7 subtype was rather poor (Ki from 0.4 to >50 μM), the affinity for α4β2 subtype was very interesting, with nanomolar Ki values for the best compounds. The N-substituted cytisines were docked into the rat and human α4β2 nAChR models based on the extracellular domain of a molluscan acetylcholine binding protein. The docking results agreed with the binding data, allowing
影响神经元烟碱型乙酰胆碱受体(nAChRs)的药物的可用性对于治疗多种中枢神经系统病理可能具有重要的治疗潜力。尽我们所能对胞嘧啶进行系统结构修饰,合成了N-芳基烷基和N-芳酰基烷基胞嘧啶,并测试了它们从最广泛的脑nAChRs亚型α中取代[ 3 H]-表哌丁啶和[ 125 I]-α-邦加罗毒素的能力。4 β 2和α 7分别。而对于α的亲和力7亚型是相当差的(ķ我0.4至> 50μM),为α的亲和力4 β 2亚型非常有趣,具有最佳化合物的纳摩尔K i值。该N-取代cytisines对接到的大鼠和人的α 4个β 2基于一种软体动物乙酰胆碱结合蛋白的胞外域的nAChR的模型。对接结果同意的结合数据,从而允许所述配体对大鼠和人的nAChRs的结合所必需的α的离散的氨基酸残基和β亚基的检测,提供了新的α的发展一种新颖的结构框架4个β 2选择性配体。