Novel Electrophilic and Photoaffinity Covalent Probes for Mapping the Cannabinoid 1 Receptor Allosteric Site(s)
作者:Pushkar M. Kulkarni、Abhijit R. Kulkarni、Anisha Korde、Ritesh B. Tichkule、Robert B. Laprairie、Eileen M. Denovan-Wright、Han Zhou、David R. Janero、Nikolai Zvonok、Alexandros Makriyannis、Maria G. Cascio、Roger G. Pertwee、Ganesh A. Thakur
DOI:10.1021/acs.jmedchem.5b01303
日期:2016.1.14
Undesirable side effects associated with orthosteric agonists/antagonists of cannabinoid 1 receptor (CB1R), a tractable target for treating several pathologies affecting humans, have greatly limited their translational potential. Recent discovery of CB1R negative allosteric modulators (NAMs) has renewed interest in CB1R by offering a potentially safer therapeutic avenue. To elucidate the CB1R allosteric
与大麻素1受体(CB1R)的正构激动剂/拮抗剂相关的不良副作用(治疗多种影响人类的病理学易处理的靶标)极大地限制了其翻译潜力。CB1R负变构调节剂(NAMs)的最新发现通过提供一种可能更安全的治疗途径,重新引起了人们对CB1R的兴趣。为了阐明CB1R变构结合基序,从而促进合理的药物发现,我们报道了设计用于不可逆地结合CB1R变构位点的第一个共价配体的合成和生化特性。在两个经典CB1R NAM的关键位置引入一个亲电子基团或一个可光活化基团:Org27569(1)和PSNCBAM-1(2)。其中20(GAT100)成为功能测定中最有效的NAM,不表现出反向激动作用,并且表现为正构激动剂CP55,940结合的强健的正变构调节剂。这种新颖的共价探针可以用作表征CB1R变构配体结合基序的有用工具。