Synthesis and bio-evaluation of indole-chalcone based benzopyrans as promising antiligase and antiproliferative agents
作者:Sampa Gupta、Pooja Maurya、Akanksha Upadhyay、Pragati Kushwaha、Shagun Krishna、Mohammad Imran Siddiqi、Koneni V. Sashidhara、Dibyendu Banerjee
DOI:10.1016/j.ejmech.2017.11.015
日期:2018.1
indole-chalcone based benzopyran compounds on cancer cells. One molecule called compound 27 showed a notable preference for inhibition of hLigI as compared to other ligases and showed enhanced cytotoxicity against colon cancer (DLD-1) cells as compared to normal cells. Mechanistic studies showed that compound 27 directly interacts with hLigI in a competitive manner and did not interact with the DNA substrate
DNA复制和修复是复杂的过程,通过酶和蛋白质网络的协同作用来完成。DNA连接酶通过催化DNA链之间的缺口连接,在这些过程中起着至关重要的作用。与正常细胞相比,据报道在某些癌症中人类DNA连接酶I(hLigI)的水平升高。我们研究了抑制hLigI介导的DNA切口封闭活性,然后研究了基于吲哚-查尔酮的新型苯并吡喃化合物对癌细胞的抗增殖活性。与其他连接酶相比,一种称为化合物27的分子表现出对hLigI抑制的显着偏好,与正常细胞相比,对结肠癌(DLD-1)细胞的细胞毒性增强。机理研究表明,化合物27在连接过程中直接与hLigI相互作用,而与DNA底物不相互作用。这种新型有效的hLigI抑制剂对模拟实体瘤的DLD-1细胞的单层培养和3D培养均显示出显着抑制作用。它还影响了DLD-1细胞的迁移,表明其潜在的抗转移活性。因此,这种新颖的hLigI抑制剂可以作为抗癌药物开发的有希望的先导。