Design, synthesis and biological evaluation of marine phidianidine-inspired derivatives against oxidized ldl-induced endothelial injury by activating Nrf2 anti-oxidation pathway
作者:Hong-Xu Xie、Yan-Hong Wang、Jin-He Zhang、Juan Zhang、Ying-Nan Zhong、Yong-Xi Ge、Zhi-Qiang Cheng、Cheng-Shi Jiang、Ning Meng
DOI:10.1016/j.bioorg.2022.105606
日期:2022.3
endothelial cell (VEC) injury is one of the effective strategies for treating atherosclerosis. In the present study, a series of novel marine phidianidine-inspired indole-1,2,4-oxadiazoles was designed, synthesized, and evaluated for their effects against oxLDL-induced injury in VECs. Among them, compound D-6, displaying the most effective protective activity, was found to inhibit oxLDL-induced apoptosis and
抑制氧化低密度脂蛋白(oxLDL)诱导的血管内皮细胞(VEC)损伤是治疗动脉粥样硬化的有效策略之一。在本研究中,设计、合成了一系列受海洋 phidianidine 启发的新型吲哚-1,2,4-恶二唑,并评估了它们对 oxLDL 诱导的 VEC 损伤的作用。其中,化合物D-6表现出最有效的保护活性,被发现可抑制oxLDL诱导的细胞凋亡以及VECs中ICAM-1和VCAM-1的表达。机制研究表明,D-6可以触发 Nrf2 核转位,随后导致 Nrf2 靶基因 HO-1 的表达增加。同时,D-6抑制由oxLDL诱导的ROS水平的增加和NF-κB的核转位。重要的是,Nrf2 敲低减弱了D-6对 oxLDL 诱导的细胞凋亡、ROS 产生和 NF-κB 核转位的抑制作用。总的来说,我们的研究表明,化合物D-6通过激活 Nrf2/HO-1 抗氧化途径来保护免受 oxLDL 诱导的内皮损伤。