Systematic diversification of benzylidene heterocycles yields novel inhibitor scaffolds selective for Dyrk1A, Clk1 and CK2
作者:Marica Mariano、Rolf W. Hartmann、Matthias Engel
DOI:10.1016/j.ejmech.2016.02.017
日期:2016.4
The dual-specificity tyrosine-regulated kinase 1A (Dyrk1A) has gathered much interest as a pharmacological target in Alzheimer's disease (AD), but it plays a role in malignant brain tumors as well. As both diseases are multi-factorial, further protein kinases, such as Clk1 and CK2, were proposed to contribute to the pathogenesis. We designed a new class of α-benzylidene–γ-butyrolactone inhibitors that
双特异性酪氨酸调节激酶1A(Dyrk1A)作为阿尔茨海默氏病(AD)的药理靶标引起了广泛兴趣,但它在恶性脑肿瘤中也起着重要作用。由于两种疾病都是多因素的,因此提出了进一步的蛋白激酶,例如Clk1和CK2,来促进发病机理。我们设计了一类新型的α-亚苄基-γ-丁内酯抑制剂,该抑制剂对Dyrk1A和/或Clk1的微摩尔浓度低,并且在最常报道的脱靶激酶中具有良好的选择性。杂环部分的系统取代使人们能够以有趣的选择性分布获得更多抑制剂类别,这表明亚苄基杂环为开发CMGC激酶家族成员Dyr1A / 1B,Clk1 / 4和CK2的抑制剂提供了多功能的工具箱。在基于细胞的测定中证明了抑制Dyrk1A介导的tau磷酸化的功效。还获得了多靶点但非非特异性激酶抑制剂,其共抑制了脂质激酶PI3Kα/γ。这些化合物显示出在低微摩尔范围内抑制U87MG细胞的增殖。基于分子特性,此处描述的抑制剂有望实现CNS活性。