A phenotypic approach to the discovery of compounds that promote non-amyloidogenic processing of the amyloid precursor protein: Toward a new profile of indirect β-secretase inhibitors
作者:Marion Gay、Caroline Evrard、Florian Descamps、Pascal Carato、Nicolas Renault、Mathilde Coevoet、Sabiha Eddarkaoui、Catherine Baud、Paul-Emmanuel Larchanché、Luc Buée、Jamal El Bakali、Valérie Vingtdeux、Nicolas Sergeant、Patricia Melnyk
DOI:10.1016/j.ejmech.2018.08.092
日期:2018.11
γ-secretase. Lysosomotropic agent, chloroquine (CQ), has been reported to inhibit Aβ peptide production. However, this effect is accompanied by an inhibition of lysosome-mediated degradation pathways. Following on from the promising activity of two series of APP metabolism modulators derived from CQ, we sought to develop new series of compounds that would retain the inhibitory effects on Aβ production without
淀粉样前体蛋白(APP)加工失调导致淀粉样β肽(Aβ)有毒,这是阿尔茨海默氏病(AD)病因的关键。Aβ肽是由β-分泌酶(BACE-1)和γ-分泌酶顺序切割APP产生的。据报道溶菌剂氯喹(CQ)可抑制Aβ肽的产生。但是,这种作用伴随着溶酶体介导的降解途径的抑制。继源自CQ的两个系列APP代谢调节剂的有希望的活性之后,我们寻求开发新系列的化合物,这些化合物将保留对Aβ产生的抑制作用而不会改变溶酶体功能。在本文中,我们应用了基于配体的药效团建模方法和从头设计,从而发现了一系列联芳基化合物。30通过环己基(化合物31)鉴定具有所需特征的化合物。进一步的研究表明,化合物30和31通过间接机制抑制β-分泌酶的活性。这项工作表明,有可能从溶酶体介导的降解作用中解离对CQ衍生化合物对Aβ肽分泌的抑制作用,从而提供了间接β-分泌酶抑制剂的新特性。