首页> 外文期刊>European Journal of Medicinal Chemistry: Chimie Therapeutique >Discovery of novel TNNI3K inhibitor suppresses pyroptosis and apoptosis in murine myocardial infarction injury
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Discovery of novel TNNI3K inhibitor suppresses pyroptosis and apoptosis in murine myocardial infarction injury

机译:新型TNNI3K抑制剂的发现抑制了小鼠心肌梗死损伤中的γ凋亡和凋亡

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摘要

Myocardial infarction (MI) injury is a highly lethal syndrome that has, until recently, suffered from a lack of clinically efficient targeted therapeutics. The cardiac troponin I interacting kinase (TNNI3K) exacerbates ischemia-reperfusion (IR) injury via oxidative stress, thereby promoting cardiomyocyte death. In this current study, we designed and synthesized 35 novel TNNI3K inhibitors with a pyrido[4,5]thieno [2,3-d] pyrimidine scaffold. In vitro results indicated that some of the inhibitors exhibited sub-micromolar TNNI3K inhibitory capacity and good kinase selectivity, as well as cytoprotective activity, in an oxygen-glucose deprivation (OGD) injury cardiomyocyte model. Furthermore, investigation of the mechanism of the representative derivative compound 6o suggested it suppresses pyroptosis and apoptosis in cardiomyocytes by interfering with p38MAPK activation, which was further confirmed in a murine myocardial infarction injury model. In vivo results indicate that compound 6o can markedly reduce myocardial infarction size and alleviate cardiac tissue damage in rats. In brief, our results provide the basis for further development of novel TNNI3K inhibitors for targeted MI therapy. (C) 2020 Elsevier Masson SAS. All rights reserved.
机译:心肌梗死(MI)损伤是一种高度致命的综合征,直到最近,缺乏临床有效的靶向治疗。心肌肌钙蛋白I相互作用激酶(TNNI3K)通过氧化应激加剧缺血再灌注(IR)损伤,从而促进心肌细胞死亡。在本前研究中,我们设计和合成了35个新型TNNI3K抑制剂,用吡啶[4,5]噻吩[2,3-D]嘧啶支架。体外结果表明,一些抑制剂在氧葡萄糖剥夺(OGD)损伤心肌细胞模型中表现出亚微摩尔TNNI3K抑制能力和良好的激酶选择性,以及细胞保护活性。此外,通过干扰P38MAPK激活,对代表性衍生化合物6o的机制的研究表明它抑制了心肌细胞中的糊酶和凋亡,这在小鼠心肌梗死损伤模型中进一步证实。在体内结果表明,化合物6o可以显着降低心肌梗死大小并减轻大鼠的心脏组织损伤。简而言之,我们的结果为进一步发展的新型TNNI3K抑制剂提供了靶向MI疗法的基础。 (c)2020 Elsevier Masson SAS。版权所有。

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