基于elacestrant的脚手架优化,发现了非抗增殖的选择性雌激素受体降解剂 (SERD)
Yunlong Lu1, Zhihao Zhao1, Shanglong Wang1
1Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, School of Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
European journal of medicinal chemistry
|October 1, 2024
概括
研究人员修改了elacestrant,一个口服选择性雌激素受体降解剂 (SERD),以减少新陈代谢. 新的B16化合物有效降解ERα,并可作为ER阳性乳腺癌研究的探针.
科学领域:
- 药用化学 医学化学
- 药理学 药理学 是一个学科.
- 在瘤学瘤学.
背景情况:
- 伊拉克斯特兰是第一种口服选择性雌激素受体降解剂 (SERD),已获批准用于ER阳性乳腺癌.
- 伊拉克斯特兰特具有中度的药理动力学,口服生物利用率为11%,这表明潜在的代谢负担.
研究的目的:
- 通过对细胞染色体P450异型进行对接分析,研究elacestrant的代谢途径.
- 设计和合成具有潜在改善代谢稳定性的新型SERD类似物.
- 评估一种新型化合物B16的生物活性,作为潜在的ER探针.
主要方法:
- 对elacestrant与各种细胞染色体P450异型的对接分析.
- 化学修改elacestrant支架,以减轻代谢影响.
- 在ER阳性乳腺癌细胞系 (MCF-7和T47D) 中B16化合物的体外评估.
主要成果:
- 接研究表明,elacestrant的四氨酸甲烯支架位于P450s的海姆铁中心附近,这表明由CYP3A4.4快速代谢.
- 一个修改后的化合物,B16,是通过在支架上用原子取代三级碳来合成的.
- 化合物B16在5μM时显著降解ERα,但在MCF-7和T47D细胞中更高度时缺乏抗增殖活性.
结论:
- 四氨甲烯支架通过CYP3A4.4促进elacestrant的代谢.
- 化合物B16是一种新型SERD模拟物,有效降解ERα.
- 化合物B16显示出作为ER阳性乳腺癌中ER状况调查的ER探针的潜力.
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