An SAR study of hydroxy-trifluoromethylpyrazolines as inhibitors of Orai1-mediated store operated Ca2+ entry in MDA-MB-231 breast cancer cells using a convenient Fluorescence Imaging Plate Reader assay
作者:Ralph J. Stevenson、Iman Azimi、Jack U. Flanagan、Marco Inserra、Irina Vetter、Gregory R. Monteith、William A. Denny
DOI:10.1016/j.bmc.2018.05.012
日期:2018.7
structures as 5-hydroxy-5-trifluoromethylpyrazolines, a series of analogues was prepared via thermal condensation reactions between substituted acylhydrazones and trifluoromethyl 1,3-dicarbonyl arenes. Structure-activity relationship (SAR) studies showed that small lipophilic substituents at the 2- and 3-positions of the RHS and 2-, 3- and 4-postions of the LHS terminal benzene rings improved activity
蛋白质Orai1和STIM1控制存储操作的Ca 2+进入(SOCE)进入细胞。SOCE对于MDA-MB-231人三阴性乳腺癌(TNBC)细胞的迁移,侵袭和转移很重要,并且已被提议作为癌症药物发现的靶标。通过荧光成像板读数器(FLIPR)Ca 2+测量,中等通量筛选中的两种命中化合物显示出令人鼓舞的MDA-MB-231细胞中SOCE抑制作用分析。在对这些命中进行NMR光谱分析并将其结构重新分配为5-羟基-5-三氟甲基吡唑啉之后,通过取代的酰基hydr与三氟甲基1,3-二羰基芳烃之间的热缩合反应,制备了一系列类似物。结构-活性关系(SAR)研究表明,RHS的2和3位以及LHS末端苯环的2、3和4位上的小亲脂性取代基提高了活性,从而产生了一类新的强效和选择性的SOCE抑制剂。