Part III: Novel checkpoint kinase 2 (Chk2) inhibitors; design, synthesis and biological evaluation of pyrimidine-benzimidazole conjugates
作者:Shadia A. Galal、Muhammad Khattab、Samia A. Shouman、Raghda Ramadan、Omaima M. Kandil、Omnia M. Kandil、Ashraf Tabll、Yasmine S. El Abd、Reem El-Shenawy、Yasmin M. Attia、Ahmed A. El-Rashedy、Hoda I. El Diwani
DOI:10.1016/j.ejmech.2018.01.072
日期:2018.2
cancer therapy. Checkpoint kinase 2 (Chk2) inhibitors offer a promising approach to enhance the effectiveness of cancer chemotherapy. Accordingly, in this study many pyrimidine-benzimidazole conjugates were designed and twelve feasible derivatives were selected to be synthesized to investigate their activity against Chk2 and subjected to study their antitumor activity alone and in combination with the
最近,在靶向癌症治疗领域已显示出癌症药物发现的显着发展。Checkpoint激酶2(Chk2)抑制剂为增强癌症化学疗法的有效性提供了一种有前途的方法。因此,在这项研究中,设计了许多嘧啶-苯并咪唑共轭物,并选择了十二种可行的衍生物进行合成,以研究其对Chk2的活性,并单独研究其抗癌活性,并与遗传毒性抗癌药顺铂和阿霉素联用,对乳腺癌进行研究, (ER +)细胞系(MCF-7)。结果表明,所研究的化合物以高效力抑制了Chk2活性(IC 50 = 5.56 nM-46.20 nM)。被研究的候选人对MCF-7(IG 50)表现出显着的抗肿瘤活性 = 6.6μM-24.9μM)。化合物10a-c,14和15显着增强了所研究的遗传毒性药物的活性,而化合物9b和20-23则拮抗了它们的活性。此外,化合物10b与顺铂的组合显示出最佳的凋亡作用,以及化合物10b与阿霉素的组合导致S期的细胞周期完全停滞,其中超过40%的细胞处于S期,而在G2