Rational design of mitochondria-targeted pyruvate dehydrogenase kinase 1 inhibitors with improved selectivity and antiproliferative activity
作者:Biao Xu、Zhimei Yu、Sichuan Xiang、Yunshan Li、Shao-Lin Zhang、Yun He
DOI:10.1016/j.ejmech.2018.06.012
日期:2018.7
Herein, triphenylphosphonium cation moieties were incorporated into a dichloroacetophenone derivative, leading to the discovery of novel mitochondria-targeted and tumor-specific pyruvate dehydrogenase kinase 1 (PDK1) inhibitors. Biological studies suggested that all these synthesized compounds had significant in vitro activities, in particular compound 1f, which inhibited PDK1 with an EC50 value of
在这里,三苯基phosph阳离子部分被纳入到二氯苯乙酮衍生物,导致发现新型的线粒体靶向和肿瘤特异性丙酮酸脱氢酶激酶1(PDK1)抑制剂。生物学研究表明,所有这些合成的化合物均具有显着的体外活性,特别是化合物1f,其抑制PDK1的EC 50值为0.12μM,并降低了NCI-H1650细胞的增殖,其IC 50值为0.21μM ,但是对非癌性BEAS-2B细胞显示边缘效应(IC 50 = 3.28μM)。另外1f降低NCI-H1650细胞的细胞外酸化速率和乳酸形成,增加活性氧的产生并使线粒体膜电位去极化,这可以作为潜在的调节剂来激活线粒体氧化磷酸化并重新编程癌细胞中的葡萄糖代谢途径。总体而言,这些数据表明1f可能是开发用于癌症治疗的PDK1抑制剂的有希望的先导。