Multifunctional novel Diallyl disulfide (DADS) derivatives with β-amyloid-reducing, cholinergic, antioxidant and metal chelating properties for the treatment of Alzheimer’s disease
作者:Apra Manral、Vikas Saini、Poonam Meena、Manisha Tiwari
DOI:10.1016/j.bmc.2015.08.024
日期:2015.10
butyrylcholinesterase (BuChE), potential antioxidant and metal chelating activities. Specifically, compounds 7k and 7l exhibited highest potency towards self-induced Aβ aggregation (74% and 71.4%, 25 μM) and metal chelating ability. Furthermore, compounds 7k and 7l disaggregated Aβ fibrils generated by Cu2+-induced Aβ aggregation by 80.9% and 78.5%, later confirmed by transmission electron microscope (TEM) analysis
设计,合成和评估了一系列新颖的二烯丙基二硫化物(DADS)衍生物,这些衍生物靶向和调节阿尔茨海默氏病(AD)的多个方面。结果表明,目标化合物5a - 1和7e - m表现出显着的抗Aβ聚集活性,相当大的乙酰胆碱酯酶(AChE)抑制作用,对AChE的选择性高于丁酰胆碱酯酶(BuChE),潜在的抗氧化剂和金属螯合活性。具体而言,化合物7k和7l对自我诱导的Aβ聚集表现出最高的效力(74%和71.4%,25μM)和金属螯合能力。此外,化合物7k和7lCu 2+诱导的Aβ聚集产生的Aβ原纤维分解率分别为80.9%和78.5%,后来通过透射电子显微镜(TEM)分析得到证实。此外,7k和7l具有最强的AChE抑制活性,IC 50值分别为0.056μM和0.121μM。此外,分子建模研究表明,这些化合物能够同时与AChE的催化活性位点(CAS)和外围阴离子位点(PAS)结合。所有目标化合物均显示出中度至优异的抗氧化活性,ORAC-FL值在0