Design, synthesis and P-gp induction activity of aryl phosphonate esters: identification of tetraethyl-2-phenylethene-1,1-diyldiphosphonate as an orally bioavailable P-gp inducer
作者:Sudhakar Manda、Abubakar Wani、Sonali S. Bharate、Ram A. Vishwakarma、Ajay Kumar、Sandip B. Bharate
DOI:10.1039/c6md00300a
日期:——
considered as a potential therapeutic strategy for the treatment of Alzheimer's disease. The expression of P-gp is regulated through a nuclear receptor, pregnane X receptor (PXR). Thus, herein we investigated the potential of a known PXR activator, diphosphonate ester SR12813 (6a), for P-gp induction activity and further studied its structure–activity relationship. The diphosphonate ester SR12813 along
淀粉样蛋白-β的清除是由位于血脑屏障的P-糖蛋白(P-gp)转运蛋白泵介导的。因此,P-gp的诱导被认为是治疗阿尔茨海默氏病的潜在治疗策略。P-gp的表达受核受体,孕烷X受体(PXR)调节。因此,本文中我们研究了已知的PXR活化剂二膦酸酯SR12813(6a)对P-gp诱导活性的潜力,并进一步研究了其结构与活性之间的关系。二膦酸酯SR12813以及三个类似物系列。合成了芳基亚烷基,芳基炔基和芳基α-氨基膦酸酯,并使用若丹明123外排试验筛选了过表达P-gp的腺癌LS180细胞中P-gp的诱导活性。母体化合物SR12813以及几种新的类似物在5μM下显示P-gp诱导活性。Western印迹分析表明,四乙基-2-苯基乙烯-1,1-二基二膦酸酯(6c)和四乙基-2-(蒽-10-基)乙烯-1,1-二基二膦酸酯(6s)显示P升高7-8倍-gp在LS180细胞中的表达。二膦酸酯6c显示出优异的水溶性,