Design, synthesis and pharmacological characterization of coumarin-based fluorescent analogs of excitatory amino acid transporter subtype 1 selective inhibitors, UCPH-101 and UCPH-102
作者:Tri H.V. Huynh、Bjarke Abrahamsen、Karsten K. Madsen、Alba Gonzalez-Franquesa、Anders A. Jensen、Lennart Bunch
DOI:10.1016/j.bmc.2012.09.049
日期:2012.12
GLAST), with the analogs UCPH-101 (IC50 = 0.66 μM) and UCPH-102 (IC50 = 0.43 μM) being the most potent inhibitors in the series. In this paper, we present the design, synthesis and pharmacological evaluation of six coumarin-based fluorescent analogs of UCPH-101/102 as subtype-selective inhibitors at EAAT1. Analogs 1114 failed to inhibit EAAT1 function (IC50 values >300 μM), whereas analogs 15 and UCPH-102F
兴奋性氨基酸转运蛋白(EAAT)在调节哺乳动物中枢神经系统中谷氨酸的突触浓度中起关键作用。迄今为止,已鉴定出五种不同的亚型,在人类中名为EAAT15(在啮齿动物中分别为GLAST,GLT-1,EAAC1,EAAT4和EAAT5)。最近,我们发表并提出了一种新型的EAAT1(和GLAST)选择性抑制剂的结构-活性关系(SAR)研究,其类似物为UCPH-101(IC 50 = 0.66μM )和UCPH-102(IC 50 = 0.43μM)是该系列中最有效的抑制剂。在本文中,我们介绍了六种基于香豆素的UCPH-101 / 102荧光素类似物作为EAAT1亚型选择性抑制剂的设计,合成和药理学评估。类似物1114未能抑制EAAT1功能(IC 50值> 300μM),而类似物15和UCPH-102F抑制EAAT1,IC 50值处于中等微摩尔范围(分别为17μM和14μM )。在生理pH下,类似