强大且蛋白质分解稳定的双双乙烯结合的GLP-1R/GIPR双抗激素的设计
1Transira Therapeutics, Baird Research Park, Amherst, New York 14228, United States.
Bioorganic & medicinal chemistry
|May 1, 2025
概括
针对GLP-1R和GIPR的新型抗激素对口服糖尿病和肥胖症治疗的稳定性有所提高. 双双乙烯结合和α-甲基化产生了强大的双重激动剂,克服了当前疗法的局限性.
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.
- 内分泌学 在内分泌学.
背景情况:
- 蒂尔泽帕提德是一种双重葡萄糖类-1受体 (GLP-1R) 和依赖葡萄糖的胰岛素受体 (GIPR) 激动剂,在治疗2型糖尿病和肥胖症方面表现出成功.
- 目前GLP-1R/GIPR双激素是线性,容易降解,限制了它们的口服生物利用性.
- 之前使用侧链二甲基接的尝试提高了稳定性,但不足以进行口服.
研究的目的:
- 设计和合成新的,口服稳定的GLP-1R/GIPR双重激动剂.
- 通过组合双双二烯基接合和α-甲基化来增强蛋白质溶解稳定性,而不仅仅是单次接合.
主要方法:
- 合成包括双双二接合和α-甲基化.
- 在模拟的肠液中评估蛋白质溶解稳定性.
- 评估双重激动剂的强度和平衡.
- 在动物模型中体内测试降糖活性.
主要成果:
- 合成了一种新的双双二甲基和α-甲基化,DA23-Bpy10,17-Bpy21,28.
- 与蒂尔泽帕提德相比,这种呈现出增强的功效和平衡的双重激素活性.
- 在模拟的肠液中达到30分钟的半衰期.
- 在动物的口服葡萄糖耐受性测试中,证明了与塞马格卢提德相当的降糖效果.
结论:
- 结合的双双乙烯接合和α-甲基化显著提高GLP-1R/GIPR双重激动剂的稳定性.
- 这些发现为糖尿病和肥胖的口服疗法开发提供了有希望的化合物.
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