Designing anticancer copper(II) complexes by optimizing 2-pyridine-thiosemicarbazone ligands
作者:Jungang Deng、Ping Yu、Zhenlei Zhang、Jun Wang、Jinhua Cai、Na Wu、Hongbin Sun、Hong Liang、Feng Yang
DOI:10.1016/j.ejmech.2018.09.020
日期:2018.10
and synthesised five Cu(II) 2-pyridine-thiosemicarbazone complexes by modifying the hydrogen atom at the N-4 position of ligands, and then investigated their structure-activity relationships and anticancer mechanisms. Modification of the N-4 position with different groups caused significant differences in cellular uptake and produced superior antitumor activity. Cu complexes arrested the cell cycle
为了开发潜在的下一代金属抗癌剂,我们通过修饰配体N-4处的氢原子,设计并合成了5种Cu(II)2-吡啶-硫代半碳杂zone配合物,然后研究了它们的结构活性关系和抗癌机理。用不同基团修饰N-4位置会引起细胞摄取的显着差异,并产生优异的抗肿瘤活性。铜配合物使细胞周期停滞在S期,导致细胞周期蛋白和细胞周期蛋白依赖性激酶水平的下调以及细胞周期蛋白依赖性激酶抑制剂的表达上调。铜配合物通过激活p53并诱导活性氧的产生来调节B细胞淋巴瘤2家族蛋白的表达,从而发挥化学治疗作用,导致线粒体膜电位发生变化,并释放细胞色素c,与凋亡蛋白酶激活因子-1形成二聚体,导致caspase-9 / 3激活,从而诱导凋亡。此外,铜配合物通过下调铜蛋白酶抑制端粒酶。c-myc调节基因和人类端粒酶逆转录酶的表达。