Design, synthesis, and biological activity of novel semicarbazones as potent Ryanodine receptor1 inhibitors of Alzheimer’s disease
作者:Baozhu Dai、Xingxing Ma、Yadong Tang、Le Xu、Su Guo、Xinyan Chen、Shitong Lu、Guangjie Wang、Yajing Liu
DOI:10.1016/j.bmc.2020.115891
日期:2021.1
single-cell calcium imaging method, the calcium overload inhibitory activities of 26 target compounds were tested in the R614C cell line, using dantrolene as a positive control. The preliminary investigation showed that compound 12a suppressed Ca2+ release as evidenced by store overload-induced Ca2+release (SOICR) (31.5 ± 0.1%, 77.2 ± 0.1%, 93.7 ± 0.2%) at 0.1 μM, 3 μM and 10 μM, respectively. Docking
Ryanodine受体(RyRs)是重要的配体门控Ca 2+通道。它们的过度活化导致肌浆网中Ca 2+泄漏,可能引起神经系统疾病。在这项研究中,设计并合成了三类基于丹特罗并带有半卡巴zone和咪唑基部分的新型有效RyR1抑制剂,并评估了它们的生物学活性。使用单细胞钙成像方法,使用丹特灵作为阳性对照,在R614C细胞系中测试了26种目标化合物的钙超载抑制活性。初步研究表明,化合物12a抑制了Ca 2+的释放,这是由存储超负荷诱导的Ca 2+所证明的。在0.1μM,3μM和10μM时释放(SOICR)(31.5±0.1%,77.2±0.1%,93.7±0.2%)。对接模拟结果表明,化合物12a可以结合RyR1蛋白的活性位点。莫里斯水迷宫测试表明,化合物12a显着改善了AD模型小鼠的认知行为。目前我们实验室正在对该系列衍生物的结构优化进行进一步研究。