Anticancer effects of some novel dichloroacetophenones through the inhibition of pyruvate dehydrogenase kinase 1
作者:Shao-Lin Zhang、Zheng Yang、Xiaohui Hu、Harapriya Chakravarty、Kin Yip Tam
DOI:10.1016/j.ejps.2018.07.026
日期:2018.10
Targeting pyruvate dehydrogenase kinase 1 (PDK1) has been suggested as a potential anticancer strategy. 2,2-dichloroacetophenone (DAP) is a PDK1 inhibitor exhibiting weak anticancer potency and poor selectivity. The current study describes the characterization of three potent compounds 54, 55 and 64, which tightly bound to PDK1 with Kd values of 1.29, 0.97, and 0.58 μM, respectively, and activated
靶向丙酮酸脱氢酶激酶1(PDK1)已被建议作为一种潜在的抗癌策略。2,2-二氯苯乙酮(DAP)是一种PDK1抑制剂,具有弱的抗癌能力和较差的选择性。目前的研究描述了三个有效化合物的表征54,55和64,其紧密结合的PDK1与ķ d的1.29,0.97的值,和0.58μM,分别与活化的丙酮酸脱氢酶复合物与EC 50值分别为0.68、0.49和0.33μM。与DAP相反,在NCI-H1975异种移植小鼠模型中,这些类似物对PDK1更有效和更具选择性,减少了NCI-H1975细胞的增殖和存活,并抑制了肿瘤的生长。此外,化合物54,55和64去极化线粒体膜电位,诱导细胞凋亡,降低细胞外乳酸形成,并且在NCI-H1975细胞中增加的活性氧的产生。它们可作为潜在的调节剂来调节癌细胞中的线粒体功能和重新编程新陈代谢,这可能代表了有力的化合物,可进一步开发有效的PDK1抑制剂。