Multifunctional tacrine–flavonoid hybrids with cholinergic, β-amyloid-reducing, and metal chelating properties for the treatment of Alzheimer's disease
作者:Su-Yi Li、Xiao-Bing Wang、Sai-Sai Xie、Neng Jiang、Kelvin D.G. Wang、He-Quan Yao、Hong-Bin Sun、Ling-Yi Kong
DOI:10.1016/j.ejmech.2013.09.024
日期:2013.11
A new series of tacrine flavonoid hybrids (13a u) had been designed, synthesized, and evaluated as multifunctional cholinesterase (ChE) inhibitors against Alzheimer's disease (AD). In vitro studies showed that most of the molecules exhibited a significant ability to inhibit ChE and self-induced amyloid-beta (A beta(1-42)) aggregation. Kinetic and molecular modeling studies also indicated compounds were mixed-type inhibitors, binding simultaneously to active, peripheral and mid-gorge sites of AChE. Particularly, compound 13k was found to be highly potent and showed a balanced inhibitory profile against ChE and self-induced A beta(1-42) aggregation. Moreover, it also showed excellent metal chelating property and low cell toxicity. These results suggested that 13k might be an excellent multifunctional agent for AD treatment. (C) 2013 Elsevier Masson SAS. All rights reserved.