Asymmetric 4-Aryl-1,4-dihydropyridines Potentiate Mutant Cystic Fibrosis Transmembrane Conductance Regulator (CFTR)
作者:Michele Giampieri、Nicolas Vanthuyne、Erika Nieddu、Marco T. Mazzei、Maria Anzaldi、Nicoletta Pedemonte、Luis J. V. Galietta、Christian Roussel、Mauro Mazzei
DOI:10.1002/cmdc.201200311
日期:2012.10
Some of the genetic mutations that cause cystic fibrosis (CF) impair the gating of the cystic fibrosis transmembrane conductance regulator (CFTR) Cl− ion channel. This defect can be corrected with pharmacological tools (potentiators) that belong to various chemical families, including the 1,4‐dihydropyridines (DHPs). A small set of asymmetric 4‐aryl‐DHPs was synthesized, and each racemic couple was
一些引起囊性纤维化(CF)损害囊性纤维化跨膜传导调节蛋白(CFTR)Cl组成的选通的遗传突变的-离子通道。可以使用属于各种化学家族,包括1,4-二氢吡啶(DHP)的药理学工具(增效剂)来纠正此缺陷。合成了一小组不对称的4-芳基-DHP,并在表达G1349D,ΔF508和G551D突变体的细胞上进行了功能测定,测试了每个外消旋对。通过HPLC对活性最高的外消旋物进行手性分离,并测试纯对映异构体以评估活性的任何提高。尽管对映异构体3表现出高的效力(ķ d值小于0.09,0.1和0.5μ中号通常,分别在G1349D,ΔF508和G551D中)对纯对映体的筛选在效力值上不会产生很大的差异。相对于CFTR中假定的DHP结合位点所允许的DHP不对称度,我们的分析中考虑的DHP不对称度可能仍然不足,因此该位点可以平等地容纳两种对映体。