研究特里斯-胺胺作为雌激素受体调节器,结合调节器的结构-活性关系
Tae-Kyung Lee1, Kara Kassees1, Chia-Yuan Chen1
1Department of Chemistry and Biochemistry, University of Texas at Dallas, Richardson, Texas 75080, United States.
雌激素受体调节器结合调节器 (ERXs) 为克服乳腺癌内分泌抵抗提供了一种新方法. 优化ERX化合物18h显示显著增强的结合亲和力和强大的抗瘤活性对ERα阳性乳腺癌.
科学领域:
- 药用化学 医学化学
- 在瘤学瘤学.
- 分子药理学分子药理学
背景情况:
- 雌激素受体核心调节器结合调节器 (ERXs) 针对ERα-核心调节器相互作用,这是克服乳腺癌内分泌抵抗的关键策略.
- 之前的研究发现了ERX-11,一种口服生物可用的tris-benzamide,具有针对ERα阳性乳腺癌细胞的抗瘤活性.
研究的目的:
- 通过结构-活性关系 (SAR) 研究,了解ERX-11中的替代剂的作用.
- 优化ERX化合物以提高结合亲和力和对抗ERα阳性乳腺癌的生物活性.
主要方法:
- 在ERX-11上进行了SAR研究,在N和C末端引入基替代剂.
- 利用形状限制来指导优化,导致化合物18h与一个trans-4-phenylcyclohexyl组.
- 评估了结合亲和力,细胞生长抑制,ERα-coregulator相互作用中断和ERα介导的转录活性.
主要成果:
- 化合物18h与ERX-11相比,结合亲和力和细胞生长抑制功效增加了10倍以上.
- 18h有效地破坏了ERα-coregulator相互作用,并抑制了ERα介导的转录活性.
- 在体外和体外,在ERα阳性乳腺癌细胞中观察到18h的显著抗增殖活性.
结论:
- 三胺18h是一种高度优化的ERX,具有强大的抗癌作用.
- 化合物18h作为治疗ERα阳性乳腺癌的候选药物具有显著的治疗潜力,特别是在内分泌系统耐药的病例中.
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