Design, synthesis and identification of N, N-dibenzylcinnamamide (DBC) derivatives as novel ligands for α-synuclein fibrils by SPR evaluation system
作者:Yan-Fei Chen、Jiang Bian、Peng Zhang、Lu-Lu Bu、Yan Shen、Wen-Bo Yu、Xiu-Hong Lu、Xin Lin、De-Yong Ye、Jian Wang、Yong Chu
DOI:10.1016/j.bmc.2020.115358
日期:2020.4
biologically evaluation system well in highthroughput based on SPR technology, and identified a novel class of N, N-dibenzylcinnamamide (DBC) compounds as α-syn ligands through the assay. These compounds were proved to have high affinities against α-syn aggregates (KD < 10 nM), which well met the requirement of binding activity for the PET probe. These DBC compounds were firstly reported as α-syn ligands herein
由于α-syn聚集是PD广泛接受的生物标志物,因此大脑中α-突触核蛋白(α-syn)沉积的PET成像将成为早期诊断帕金森氏病(PD)的有效工具。但是,到目前为止,临床上尚无用于成像的必要PET示踪剂。铅化合物的发现是研究的第一步。在本文中,我们最初基于SPR技术建立了一个高通量的高效生物学评估系统,并通过该分析鉴定了新型N,N-二苄基肉桂酰胺(DBC)类化合物作为α-syn配体。这些化合物被证明对α-syn聚集体具有高亲和力(KD <10 nM),完全满足了PET探针的结合活性要求。这些DBC化合物在本文中首先被报道为α-syn配体,并且初步获得的结构已经被进一步修饰为F-标记的。其中,已获得具有1.03 nM(KD)的高亲和力示踪剂(5-41),表明其作为开发PET放射性示踪剂的新型先导化合物的潜力。