On the vasoprotective mechanisms underlying novel β-phosphorylated nitrones: Focus on free radical characterization, scavenging and NO-donation in a biological model of oxidative stress
作者:Mathieu Cassien、Consuelo Petrocchi、Sophie Thétiot-Laurent、Maxime Robin、Emilie Ricquebourg、Chouaib Kandouli、Alice Asteian、Antal Rockenbauer、Anne Mercier、Marcel Culcasi、Sylvia Pietri
DOI:10.1016/j.ejmech.2016.04.067
日期:2016.8
featured an antioxidant moiety occurring in natural phenolic acids. From the experimental screening of these hydroxyphenyl- and methoxyphenyl-substituted PPNs, biocompatible nitrones 4d, and 4g−4i deriving from caffeic, gallic, ferulic and sinapic acids, which combined improved EPR probing of ROS formation, vasorelaxant action and antioxidant potency, might be potential drug candidate alternatives to PBN
合成了一系列具有不同芳族取代基(PPN)的新型杂化2-(二乙氧基磷酰基)-N-(亚苄基)丙烷-2-氧化胺衍生物。评估了这些分子在11种不同自由基上的EPR自旋捕获潜力以及体外NO给予特性,对预收缩大鼠主动脉环的细胞毒性和血管保护作用。新PPN的一个亚家族具有天然酚酸中存在的抗氧化剂部分。通过对这些被羟基苯基和甲氧基苯基取代的PPN的实验筛选,生物相容性硝酮4d和4g - 4i 源自咖啡酸,没食子酸,阿魏酸和芥子酸的酸,结合改进的EPR探测ROS形成,血管舒张作用和抗氧化剂效能,可能是PBN及其类似物的潜在候选药物。