On the role of synthesized hydroxylated chalcones as dual functional amyloid-β aggregation and ferroptosis inhibitors for potential treatment of Alzheimer's disease
作者:Lin Cong、Xiyu Dong、Yan Wang、Yulin Deng、Bo Li、Rongji Dai
DOI:10.1016/j.ejmech.2019.01.039
日期:2019.3
In addition to amyloid cascade hypothesis, ferroptosis – a recently identified cell death pathway associated with the accumulation of lipid hydroperoxides – was hypothesized as one of the main forms of cell death in Alzheimer's disease. Herein, a series of hydroxylated chalcones were designed and synthesized as dual-functional inhibitors to inhibit amyloid-β peptide (Aβ) aggregation as well as ferroptosis
除淀粉样蛋白级联假说外,铁蛋白增生症(一种最近发现的与脂质过氧化氢的积累有关的细胞死亡途径)被认为是阿尔茨海默氏病的主要细胞死亡形式之一。本文中,设计并合成了一系列羟基化的查耳酮作为双功能抑制剂,以同时抑制淀粉样β肽(Aβ)的聚集以及肥大症。硫黄素-T测定表明三羟基查耳酮更好地抑制了Aβ聚集。在人神经母细胞瘤SH-SY5Y细胞中,具有三个羟基取代基的细胞保护查耳酮14a-c对Aβ1-42聚集诱导的毒性表现出显着的神经保护作用。此外,查尔孔涅斯14a-c被发现是通过使用过氧化氢-酶解毒的Gpx4任一药理学抑制(感应ferroptosis的良好抑制剂1S,3R)或-RSL4胱氨酸/谷氨酸反向转运蛋白系统X Ç -抑制erastin通过脂质过氧化抑制机制。三羟基查尔酮14a还能够完全破坏SH-SY5Y细胞中Aβ1-42聚集诱导的脂质过氧化反应,表明它们可以减少与氧化应激有关的神经毒性。化合物14