Profiling of the chemical space on the phenyl group of substituted benzothiazole RIPK3 inhibitors
作者:Yue Xu、Caiquan Liang、Wannian Zhang、Jianqiang Yu、Chengguo Xing、Huanhai Liu、Chunlin Zhuang
DOI:10.1016/j.bioorg.2022.106339
日期:2023.2
Necroptosis is confirmed as a precisely programmed cell death that is activated in caspase-deficient conditions. Receptor-interacting protein kinase 1 (RIPK1), RIPK3 and mixed-lineage kinase domain-like pseudokinase (MLKL) are the key regulators involved in the signaling pathway. However, accumulating evidence suggests that RIPK1 also works in apoptosis and inflammation pathways independent of necroptosis
坏死性凋亡被确认为一种精确程序化的细胞死亡,在半胱天冬酶缺乏的情况下被激活。受体相互作用蛋白激酶 1 (RIPK1)、RIPK3 和混合谱系激酶结构域样假激酶 (MLKL) 是参与信号通路的关键调节因子。然而,越来越多的证据表明,RIPK1 还在独立于坏死性凋亡的细胞凋亡和炎症通路中发挥作用。不同的是,RIPK3 信号坏死性凋亡独立于 RIPK1。因此,鉴定特定的 RIPK3 抑制剂对于与坏死性凋亡相关的药物开发非常重要。苯并噻唑甲酰胺是我们小组最近开发的一种特殊支架作为 RIPK3 抑制剂。在这项研究中,我们研究了苯并噻唑和羧酰胺之间的苯基,以描绘化学空间。最后,氯化衍生物发现XY-1-127特异性抑制坏死性凋亡而非细胞凋亡,EC 50值为 676.8 nM,靶向 RIPK3 的 K d为 420 nM 而不是 RIPK1 (K d = 4300 nM)。还证实在坏死性凋亡细胞中通过抑制