Discovery of 3-(1H-benzo[d]imidazole-2-yl)-1H-pyrazol-4 -amine derivatives as novel and potent syk inhibitors for the treatment of hematological malignancies
作者:Bingbing Cui、Yong Wang、Zhipeng Zhao、Lu Fan、Yu Jiao、Hongmei Li、Jie Feng、Weifang Tang、Tao Lu、Yadong Chen
DOI:10.1016/j.ejmech.2023.115597
日期:2023.10
cell receptor (BCR) signaling pathway. Abnormal activation of Syk is closely related to the occurrence and development of hematological malignancies. Therefore, Syk is a potential target for the treatment of various hematologic cancers. Starting from compound 6(Syk, IC50 = 15.8 μM), we performed fragment-based rational drug design for structural optimization based on the specific solvent-accessible region
脾酪氨酸激酶(Syk)是一种重要的癌基因和信号转导介质,主要在造血细胞中表达。Syk 在B 细胞受体(BCR) 信号通路中发挥关键作用。Syk的异常激活与血液系统恶性肿瘤的发生、发展密切相关。因此,Syk是治疗多种血液癌症的潜在靶点。从化合物6(Syk,IC 50 = 15.8 μM)开始,我们根据Syk特定的溶剂可及区域、疏水区域和核糖区域进行了基于片段的合理药物设计,以进行结构优化。由此发现了一系列新型 3-(1H-苯并[ d ]咪唑-2-基)-1H-吡唑-4-胺 Syk 抑制剂,从而鉴定了19q ,这是一种高效 Syk 抑制剂,对 Syk 酶表现出优异的抑制活性 (IC 50 = 0.52 nM),并对其他几种激酶表现出效力。此外,化合物19q可有效降低Romos细胞中下游PLCγ2水平的磷酸化。它还对多种血液肿瘤细胞表现出抗增殖活性。更令人高兴的是, 19q在 MV4-11 小鼠异种移植模型中以低剂量(1