New hydroxystilbenoid derivatives endowed with neuroprotective activity and devoid of interference with estrogen and aryl hydrocarbon receptor-mediated transcription
作者:Carolina Villalonga-Barber、Aggeliki K. Meligova、Xanthippi Alexi、Barry R. Steele、Constantinos E. Kouzinos、Constantinos G. Screttas、Efrosini S. Katsanou、Maria Micha-Screttas、Michael N. Alexis
DOI:10.1016/j.bmc.2010.11.018
日期:2011.1
100 to 400-fold more potent than resveratrol. Derivatives 2, 4 and 6 lacked cytotoxic activity against HT22 cells and estrogen receptor agonist or antagonist activity in estrogen response element-dependent gene expression and in estrogen-dependent proliferation of MCF-7 human breast cancer cells. In addition, they were incapable of interfering with aryl hydrocarbon receptor-mediated xenobiotic response
我们合成了一系列新的(E)二苯乙烯类衍生物,其在与反式-白藜芦醇的环位置相同或相似的环位置上含有羟基,并带有一个或两个与4'-OH邻位的给电子基团,我们已经使用它们评估了它们的神经保护活性。谷氨酸攻击的HT22海马神经元可模拟氧化应激诱导的神经元细胞死亡。活性最高的衍生物5-(E)-2- [3,5-双(1-乙基丙基)-4-羟苯基]乙烯基} -1,3-苯二醇(2),5-[(E)-2 -((3,5-二叔丁基-4-羟基苯基乙烯基)]-1,3-苯二醇(4)和5-(1 E,3 E)-4- [3,5-双(1-乙基丙基)-4-羟基苯基] -1,3-丁二烯基} -1,3-苯二醇(6)的EC 50值分别为30、45和12 nM。 ,并且是。效力比白藜芦醇高100到400倍。衍生物2,4和6缺乏细胞毒性活性对HT22细胞和雌激素反应元件依赖性基因表达雌激素受体激动剂或拮抗剂活性,并在MCF-7人乳腺癌细胞