Structure–Activity Relationships for Vitamin D3-Based Aromatic A-Ring Analogues as Hedgehog Pathway Inhibitors
作者:Albert M. DeBerardinis、Daniel J. Madden、Upasana Banerjee、Vibhavari Sail、Daniel S. Raccuia、Daniel De Carlo、Steven M. Lemieux、Adam Meares、M. Kyle Hadden
DOI:10.1021/jm401812d
日期:2014.5.8
A structure–activity relationship study for a series of vitamin D3-based (VD3) analogues that incorporate aromatic A-ring mimics with varying functionality has provided key insight into scaffold features that result in potent, selective Hedgehog (Hh) pathway inhibition. Three analogue subclasses containing (1) a single substitution at the ortho or para position of the aromatic A-ring, (2) a heteroaryl
对一系列基于维生素D3(VD3)类似物的结构-活性关系的研究结合了功能不同的芳香族A环模拟物,提供了对脚手架特征的关键见解,这些特征可导致有效的,选择性的刺猬(Hh)途径抑制。制备并评估了三个类似的亚类,这些亚类包含(1)在芳族A-环的邻位或对位单取代,(2)杂芳基或联芳基部分或(3)在芳族A-环上的多个取代基。在六元环上掺入单个或多个亲水部分的芳香族A环模拟物在依赖Hh的小鼠胚胎成纤维细胞和培养的癌细胞中均抑制Hh途径(IC 50值0.74–10μM)。进行了初步研究以探究最活跃的类似物VD3和5抑制Hh信号传导的细胞机制。这些研究表明,VD3的抗Hh活性主要归因于维生素D受体,而5则通过单独的机制影响Hh抑制作用。