Imidazole-derived 2-[N-carbamoylmethyl-alkylamino]acetic acids, substrate-dependent modulators of insulin-degrading enzyme in amyloid-β hydrolysis
作者:Julie Charton、Marion Gauriot、Qing Guo、Nathalie Hennuyer、Xavier Marechal、Julie Dumont、Malika Hamdane、Virginie Pottiez、Valerie Landry、Olivier Sperandio、Marion Flipo、Luc Buee、Bart Staels、Florence Leroux、Wei-Jen Tang、Benoit Deprez、Rebecca Deprez-Poulain
DOI:10.1016/j.ejmech.2014.04.009
日期:2014.5
Insulin degrading enzyme (IDE) is a highly conserved zinc metalloprotease that is involved in the clearance of various physiologically peptides like amyloid-beta and insulin. This enzyme has been involved in the physiopathology of diabetes and Alzheimer's disease. We describe here a series of small molecules discovered by screening. Co-crystallization of the compounds with IDE revealed a binding both at the permanent exosite and at the discontinuous, conformational catalytic site. Preliminary structure activity relationships are described. Selective inhibition of amyloid-beta degradation over insulin hydrolysis was possible. Neuroblastoma cells treated with the optimized compound display a dose-dependent increase in amyloid-beta levels. (c) 2014 Elsevier Masson SAS. All rights reserved.