Discovery and anti-inflammatory evaluation of benzothiazepinones (BTZs) as novel non-ATP competitive inhibitors of glycogen synthase kinase-3β (GSK-3β)
作者:Yang Gao、Peng Zhang、Anfeng Cui、De-Yong Ye、Meng Xiang、Yong Chu
DOI:10.1016/j.bmc.2018.09.027
日期:2018.11
Glycogen synthase kinase-3β (GSK-3β) has been identified to promote inflammation and its inhibitors have also been proven to treat some inflammatory mediated diseases in animal models. Non-ATP competitive inhibitors inherently have better therapeutical value due to their higher specificity than ATP competitive ones. In this paper, we designed and synthesized a series of new BTZ derivatives as non-ATP
糖原合酶激酶3β(GSK-3β)已被证实可促进炎症,并且其抑制剂也已被证明可治疗动物模型中的某些炎症介导的疾病。非ATP竞争性抑制剂由于其特异性高于ATP竞争性抑制剂,因此固有地具有更好的治疗价值。在本文中,我们设计并合成了一系列新型BTZ衍生物作为非ATP竞争性GSK-3β抑制剂。动力学分析表明,两种典型化合物6j和3j分别显示了底物竞争或对GSK-3β的变构调节的不同非ATP竞争机制。不出所料,这两种化合物在16种蛋白激酶的面板测试中显示出良好的特异性,甚至对最接近的酶(如CDK-1 / cyclin B和CK-II)也是如此。这体内结果证明,这两种化合物均可通过抑制IL-1β和IL-6的mRNA表达而大大减轻LPS诱导的急性肺损伤(ALI),并减轻小鼠的炎症反应。蛋白质印迹分析表明,它们对GSK-3β负调控,并且所观察到的抑制剂有益作用的机制可能涉及到GSK-3β上Ser9残基的磷酸化增加以及Sirtuin