Estrogenic Triarylethylene Acetic Acids: Effect of Structural Variation on Estrogen Receptor Affinity and Estrogenic Potency and Efficacy in MCF-7 Cells
作者:Peter C. Ruenitz、Caryl S. Bourne、Kelly J. Sullivan、Susan A. Moore
DOI:10.1021/jm960517e
日期:1996.1.1
Although a 1,1-bisphenolic analogue bearing the p-(oxyacetic acid) moiety on its 2-phenyl ring, 12, had low ER affinity, it exhibited estrogenic potency approaching that of 8 in MCF-7 cells. Unlike 8 which was a partial agonist with weak antagonist potency, 12 was a full agonist. A similar profile of potency/efficacy in MCF-7 cells was seen in 9, an ethylenic bond saturated analogue of 8. Growth-promoting
以(E,Z)-2- 4- [1- [对羟基苯基)-2-苯基] -1-丁烯基}苯氧基乙酸(8)为例的三芳基乙烯羧酸是一类新型的雌激素受体(ER)配体组织选择性雌激素激动剂和拮抗剂的作用。我们报告8和类似物的合成,结合已知或预期可促进三芳基乙烯中的ER亲和力的结构特征。这些研究表明,对羟基苯基部分,烯键和8的醚氧对于高ER亲和力都是至关重要的。尽管在其2-苯基环12上带有对-(氧乙酸)部分的1,1-双酚类似物具有较低的ER亲和力,但在MCF-7细胞中其雌激素效价接近8。与8是拮抗作用力弱的部分激动剂不同,12是完全激动剂。在9中看到了MCF-7细胞的效价/功效的相似图谱,其是8的烯键饱和类似物。他莫昔芬抗雌激素完全拮抗了8、9和12的生长促进作用,表明这种作用是介导的。仅通过ER。因此,我们在MCF-7细胞中的研究证实了8的雌激素性,并能够鉴定出具有良好雌激素效力和完全雌激素功效的两种类似物