基于结构的发现Obeticol酸衍生物作为新型Farnesoid X受体部分激动剂,具有改善的选择性和减少的非目标效应
Daniela Passeri1, Bruno Cerra2, Andrea Carotti2
1Tes Pharma, S.r.l., Via Giovine Italia 1, 06073, Solomeo (PG), Italy.
ChemMedChem
|February 4, 2026
概括
新的obeticholic酸衍生物被开发为更安全的Farnesoid X受体 (FXR) 调节器. 这些化合物表现出效率降低,并避免激活MRGPRX4受体,从而有可能在代谢和肝脏疾病治疗中最大限度地减少等副作用.
科学领域:
- 药用化学 医学化学
- 药理学 药理学是指药理学的学科.
- 分子生物学分子生物学
背景情况:
- 法内索伊德X受体 (FXR) 是肠肝和代谢疾病的关键治疗点.
- 寻求FXR部分激动剂来减轻过度激活的副作用.
- 肥酸 (OCA) 是一种FXR激活剂,具有潜在的副作用,包括.
研究的目的:
- 设计,合成和评估新型肥酸 (OCA) 衍生物作为选择性FXR调节剂.
- 确定具有降低激动剂疗效和改进安全配置文件的FXR调节器.
- 为了研究管理FXR部分激励和非目标效应的结构-活动关系.
主要方法:
- 合成具有C3α位置和侧链结构修饰的新型OCA衍生物.
- 对FXR调制的生物评估,包括激动剂疗效和受体激活试验.
- 分子动力学模拟用于分析FXR联体结合域中联体诱导的构造变化.
- 评估非目标活性,特别是MRGPRX4 (hX4) 受体上的活动.
主要成果:
- 瓦林衍生物2和16被确定为代谢稳定和安全的FXR调节剂,具有降低的激素效率.
- 分子动力学模拟显示了FXR中明显的形状变化,与部分激进相一致.
- 化合物2和16没有激活MRGPRX4 (hX4) 受体,与OCA.不同.
- 在新型衍生品中观察到FXR目标基因的适度调节.
结论:
- 新型OCA衍生品显示出作为更安全的FXR调节器的潜力,降低了风险.
- 了解结构-活性关系对于开发具有更高安全性的FXR疗法至关重要.
- 这些化合物作为有价值的化学工具,用于推进针对肝脏和代谢障碍的FXR向疗法.
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