Development of selective, fluorescent cannabinoid type 2 receptor ligands based on a 1,8-naphthyridin-2-(1<i>H</i>)-one-3-carboxamide scaffold
作者:Anna G. Cooper、Caitlin R. M. Oyagawa、Jamie J. Manning、Sameek Singh、Sarah Hook、Natasha L. Grimsey、Michelle Glass、Joel D. A. Tyndall、Andrea J. Vernall
DOI:10.1039/c8md00448j
日期:——
Cannabinoid type 2 (CB2) receptor has been implicated in several diseases and conditions, however no CB2 receptor selective drugs have made it to market. The aim of this study was to develop fluorescent ligands as CB2 receptor tools, to enable an increased understanding of CB2 receptor expression and signalling and thereby accelerate drug discovery. Fluorescent ligands have been successfully developed
2 型大麻素 (CB 2 ) 受体与多种疾病和病症有关,但尚未有 CB 2受体选择性药物上市。本研究的目的是开发荧光配体作为 CB 2受体工具,以加深对 CB 2受体表达和信号传导的了解,从而加速药物发现。已成功开发出针对其他受体的荧光配体,但尚未报道针对 CB 2受体具有足够的亚型选择性或成像特性的荧光配体。开发了一系列 1,8-萘啶-2-(1 H )-one-3-甲酰胺,其 N1 和 C3 位上附加有连接基和荧光团。分子模型表明,C3顺式环己醇连接的化合物将接头引出跨膜螺旋 1 和 7 之间的 CB 2受体。在此,我们报告荧光配体32 (hCB 2 p K = 6.33 ± 0.02) 是亲和力最高的配体之一,报道了选择性CB 2受体荧光配体。尽管32对 CB 2受体的特异性标记较差,但具有该接头的萘啶支架对于 CB 2受体工具的未来开发仍然非常有希望。