Evaluating the effects of fluorine on biological properties and metabolic stability of some antitubulin 3-substituted 7-phenyl-pyrroloquinolinones
作者:Roberta Bortolozzi、Davide Carta、Matteo Dal Prà、Giuseppe Antoniazzi、Elena Mattiuzzo、Mattia Sturlese、Veronica Di Paolo、Laura Calderan、Stefano Moro、Ernest Hamel、Luigi Quintieri、Roberto Ronca、Giampietro Viola、Maria Grazia Ferlin
DOI:10.1016/j.ejmech.2019.05.092
日期:2019.9
remarkable cytotoxic activity in the multidrug-resistant cell line CEMVbl100, suggesting that they are not substrates for P-glycoprotein. All compounds inhibited tubulin assembly and the binding of [3H]colchicine to tubulin, with the best activity occurring with compound 15. Mechanistic studies carried out on compound 12 indicated that it caused (a) a strong G2/M arrest; (b) apoptosis in a time- and
为了提高3 N-乙基-7-PPyQ和3 N-苯甲酰基-7-PPyQ的代谢稳定性,合成了少量的氟化7-苯基-吡咯并喹啉酮(7-PPyQ)衍生物。评估了氟氢等构异构对生物活性和代谢稳定性的可能影响。在-7-苯基环的2或3位上的氟原子的引入,得到7- PPyQ衍生物12,13和15,这表明有效的细胞毒性(低微摩尔和亚纳摩尔GI 50个S)无论是在人白血病和固体肿瘤细胞系。它们均未在静止和增殖的人类淋巴细胞中诱导明显的细胞死亡。而且12,13和15在多药耐药细胞系CEM Vbl100中表现出显着的细胞毒性活性,表明它们不是P-糖蛋白的底物。所有化合物均抑制微管蛋白的组装和[ 3 H]秋水仙碱与微管蛋白的结合,化合物15具有最佳活性。对化合物12进行的机理研究表明,它导致(a)强烈的G2 / M阻滞;(b)以时间和浓度依赖性的方式发生细胞凋亡;(c)大量产生ROS(与观察到的线粒体去极化高度吻合);