Novel synthesised flavone derivatives provide significant insight into the structural features required for enhanced anti-proliferative activity
作者:Divyashree Ravishankar、Kimberly A. Watson、Francesca Greco、Helen M. I. Osborn
DOI:10.1039/c6ra11041j
日期:——
= 1.81 μM)). Overall, 15f and 16f exhibited 7–46 fold greater anti-proliferative potency than the natural flavone chrysin (2d). A systematic structure–activity relationship study against the breast cancer cell lines highlighted that free hydroxyl groups and the B-ring phenyl groups were essential for enhanced anti-proliferative activities. Substitution of the 4-CO functionality with a 4-CS functionality
随着许多癌症显示出对当前化学疗法的抗性,寻找新型抗癌药引起了极大的关注。天然类黄酮已被确认为此类计划的有用线索。然而,由于通常缺乏对最佳活性的结构要求的深入了解,因此在实现类黄酮作为抗增殖剂的全部潜力之前,需要进行进一步的研究。本文构建了一个包含76个甲氧基和羟基黄酮及其4-硫代类似物的宽泛文库,并建立了它们与乳腺癌细胞系MCF-7(ER + ve),MCF-7 /的抗增殖活性的结构-活性关系。探测了DX(ER + ve,抗蒽环类)和MDA-MB-231(ER -ve)。在该库中,有42种化合物是新颖的,所有化合物的收率都很高,纯度95%。最有前途的先导化合物,特别是新型羟基4-硫代黄酮美国国家癌症研究所(NCI)进一步评估了15f和16f对多种癌细胞系的抗增殖活性,并显示出显着的生长抑制特征(例如化合物15f:MCF-7(GI 50 = 0.18μM),T-47D(GI 50 = 0.03μM)和MDA-MB-468(GI