Biological properties and structural study of new aminoalkyl derivatives of benzimidazole and benzotriazole, dual inhibitors of CK2 and PIM1 kinases
作者:K. Chojnacki、P. Wińska、M. Wielechowska、E. Łukowska-Chojnacka、C. Tölzer、K. Niefind、M. Bretner
DOI:10.1016/j.bioorg.2018.06.022
日期:2018.10
The new aminoalkyl-substituted derivatives of known CK2 inhibitors 4,5,6,7-tetrabromo-1H-benzimidazole (TBBi) and 4,5,6,7-tetrabromo-1H-benzotriazole (TBBt) were synthesized, and their influence on the activity of recombinant human CK2 α, CK2 holoenzyme and PIM1 kinases was evaluated. All derivatives inhibited the activity of studied kinases and the most efficient were aminopropyl-derivatives 8b and
合成了已知的CK2抑制剂4,5,6,7-四溴-1 H-苯并咪唑(TBBi)和4,5,6,7-四溴-1 H-苯并三唑(TBBt)的新的氨基烷基取代的衍生物,评估了对重组人CK2α,CK2全酶和PIM1激酶活性的影响。所有衍生物均抑制所研究激酶的活性,最有效的是氨丙基衍生物8b和14b。这些化合物还抑制癌细胞系CCRF-CEM(急性淋巴母细胞性白血病),MCF-7(人乳腺癌)和PC-3(前列腺癌)的增殖及其EC 50与临床研究的CK2抑制剂CX-4945的值相当。初步的结构活性关系分析表明,间隔区长度影响抗肿瘤能力,其中2〜3个亚甲基单元更为有利。CK2α1-335 / 8b的络合物在高盐条件下和低盐条件下均进行了结晶,得到的晶体将X射线衍射到约2.4Å的分辨率,从而确定了相应的3D结构。