基于结构的型选择性抑制剂的发现
Isha Singh1, Anubha Seth2, Christian B Billesbølle1
1Department of Pharmaceutical Chemistry, University of California, San Francisco, 1700 4th St., Byers Hall Suite 508D, San Francisco, CA 94143, USA.
Cell
|May 3, 2023
概括
开发了针对内向开放状态的新型血清素转运体 (SERT) 抑制剂,在小鼠中表现出强烈的抗抑郁和抗焦虑作用. 这些新型化合物还可以逆转吗啡戒断症状,
科学领域:
- 神经科学
- 药理学
- 结构生物学
背景情况:
- 血清转运体 (SERT) 是抗抑郁药物的主要点,调节突触血清水平.
- SERT存在多种形态,包括向外开放,封闭和向内开放的状态.
- 现有的抑制剂主要针对向外开放的SERT状态,而伊波与向内开放的状态具有独特的相互作用,但具有局限性.
研究的目的:
- 发现新型的SERT抑制剂,
- 开发具有强效和选择性的SERT配体,具有改善的治疗特征.
- 在行为模型中研究新型SERT抑制剂的体内疗效.
主要方法:
- 对200多万个小分子进行了广泛的虚拟选.
- 合成和生物化学评估排名第一的接化合物.
- 基于结构的优化和冷电子显微镜 (cryo-EM) 用于结构验证.
- 在小鼠行为试验中评估抗焦虑,抗抑郁和抗戒断作用.
主要成果:
- 从虚拟查中识别和合成13种SERT抑制化合物.
- 优化产生了两种强大的 (低纳米) 抑制剂,稳定了向外封闭的SERT状态.
- 克里奥EM证实了一种新兴抑制剂的结合方式.
- 这些化合物在小鼠中表现出显著的抗焦虑和抗抑郁作用,其效果优于素.
- 一种化合物大大扭转了吗啡戒断症状.
结论:
- 新的强效和选择性的SERT抑制剂已经开发出来,针对以前未被充分研究的结构.
- 这些化合物在临床前模型中表现出有前途的抗抑郁,抗焦虑和抗戒断特性.
- 这些发现为开发改善抑郁症和物质使用障碍的治疗方法开辟了新的途径.
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