Discovery of β-Carboline Derivatives as a Highly Potent Cardioprotectant against Myocardial Ischemia-Reperfusion Injury
作者:Hong Zhang、Rong-Hong Zhang、Xiang-Ming Liao、Dan Yang、Yu-Chan Wang、Yong-Long Zhao、Guo-Bo Xu、Chun-Hua Liu、Yong-Jun Li、Shang-Gao Liao、Meng Zhou
DOI:10.1021/acs.jmedchem.1c00384
日期:2021.7.8
reperfusion salvages ischemic myocardium from infarction, whereas reperfusion itself induces cardiomyocyte death, which is called myocardial ischemia/reperfusion (MI/R) injury. Herein, β-carboline derivative 17c was designed and synthesized with obvious myocardial protective activity for the first time. Pretreatment of 17c effectively protected the cardiomyocyte H9c2 cells from H2O2-induced lactate dehydrogenase
及时的心肌再灌注可以挽救梗死的缺血心肌,而再灌注本身会诱导心肌细胞死亡,这被称为心肌缺血/再灌注 (MI/R) 损伤。在此,首次设计合成了具有明显心肌保护活性的β-咔啉衍生物17c。17c 的预处理有效地保护了心肌细胞 H9c2 免受 H 2 O 2诱导的乳酸脱氢酶渗漏,并恢复了内源性抗氧化剂、超氧化物歧化酶 (SOD) 和谷胱甘肽过氧化物酶 (GSH-Px)。此外,17c通过减少活性氧的过量产生和提高线粒体膜电位,有效地保护了线粒体。结果,17c显着减少了 H 2 O 2诱导的氧化应激中心肌细胞的坏死,这比虎杖苷更有效。MI/R损伤大鼠,17c预处理明显升高SOD和GSH-Px水平,抑制心肌细胞凋亡。通过这种方式,在体内MI/R 损伤后心肌梗塞的大小显着减小,优于虎杖苷,表明17c是一种有前景的预防 MI/R 损伤的心脏保护剂。