Myeloperoxidase Inhibitory and Antioxidant Activities of (E)-2-Hydroxy-α-aminocinnamic Acids Obtained through Microwave-Assisted Synthesis
作者:Astrid Rivera-Antonio、Martha Cecilia Rosales-Hernández、Irving Balbuena-Rebolledo、José Martín Santiago-Quintana、Jessica Elena Mendieta-Wejebe、José Correa-Basurto、Juan Benjamín García-Vázquez、Efrén Venancio García-Báez、Itzia I. Padilla-Martínez
DOI:10.3390/ph14060513
日期:——
neutrophils, whose main role is to provide defenses against invading pathogens. However, highly reactive oxygen species (ROS), such as HOCl, are generated from MPO activity, leading to chronic diseases. Herein, we report the microwave-assisted synthesis of a new series of stable (E)-(2-hydroxy)-α-aminocinnamic acids, in good yields, which are structurally analogous to the natural products (Z)-2-hydroxycinnamic
髓过氧化物酶(MPO)是人类嗜中性粒细胞中存在的一种酶,其主要作用是提供防御入侵病原体的能力。但是,MPO活性会产生高活性氧(ROS),例如HOCl,从而导致慢性疾病。在此,我们报告了微波辅助合成的一系列稳定的新(E)-(2-羟基)-α-氨基肉桂酸,其产率与天然产物(Z)-2-羟基肉桂酸相似。评价了所报道化合物的自由基清除活性(RSA),MPO抑制活性和细胞毒性。羟基衍生物显示出最有效的RSA,在0.32 mM时将DPPH和ABTS自由基的存在分别降低了77%和在0.04 mM时降低了100%。他们的作用机制是用BDE建模的在B3LYP / 6 − 31 + G(d,p)水平上的OH,IP和ΔEH -L理论计算。化合物显示出MPO的体外抑制活性,其IC 50值可与消炎痛和5-ASA相比,但在100–200 µM时的细胞毒性低于15%。对接计算显示,它们到达了MPO活性位点远端腔中存在的氨基