In the present work we report the synthesis of four new ER ligands which can be used as scaffolds for the introduction of the basic side chains necessary for antiestrogenic activity. Affinities and agonist/antagonist characterization of the ligands for both ERα and ERβ have been determined in a competitive radioligand assay, and in an in vitro coactivator recruitment functional assay, respectively. Molecular modelling techniques have been used in order to rationalize the experimental results. Compound 2 is reported as a novel ERβ-agonist/ERα-antagonist. Two compounds show an interesting antitumour profile towards two pancreatic cancer cell lines and have been selected for in vivo assays.
在本研究中,我们报告了四种新型
雌激素受体(ER)
配体的合成,这些
配体可作为引入抗
雌激素活性所需的基本侧链的支架。通过竞争性放射性
配体结合试验和体外共激活剂招募功能试验,分别确定了这些
配体对 ERα 和 ERβ 的亲和力及激动剂/
拮抗剂特性。使用分子建模技术来合理化实验结果。化合物 2 被报道为一种新型 ERβ 激动剂/ERα
拮抗剂。两种化合物对两种胰腺癌
细胞系显示出有趣的抗肿瘤特性,并被选定进行体内试验。