药物重定位:将局限性HIV蛋白酶抑制剂安普雷纳维尔转化为强效,选择性和中枢神经系统透性对大麻素受体2的激动剂
Daniel H Haymer1,2, Renn A Duncan1,2, Alice L Rodriguez1,2
1Warren Center for Neuroscience Drug Discovery, Vanderbilt University, Nashville, Tennessee 37232, United States.
Journal of medicinal chemistry
|February 5, 2026
概括
艾滋病毒药物安普雷纳维尔重新作为选择性大麻素受体2 (CB2) 激动剂. 结构-活性关系研究表明,在中枢神经系统暴露时产生强大的CB2激动剂,显示出治疗应用的前景.
科学领域:
- 药用化学 医学化学
- 神经药理学神经药理学
- 药物发现 药物发现 药物发现
背景情况:
- 大麻素受体2 (CB2) 激动剂正在研究其治疗潜力.
- 现有的CB2激动剂往往缺乏足够的中枢神经系统 (CNS) 暴露或选择性.
- 重新利用已知的药物为新疗法提供了更快的途径.
研究的目的:
- 为了确定新的大麻素受体2 (CB2) 激动剂.
- 为了重新利用艾滋病毒蛋白酶抑制剂安普雷纳维尔支架,用于高CB2强度和中枢神经系统暴露.
- 探索选择性CB2激动因子的结构-活性关系 (SAR).
主要方法:
- 确定安普雷纳维尔作为CB2激动剂.
- 结构-活性关系 (SAR) 研究以优化功效和选择性.
- 在实验室测试CB2/CB1受体活性和P-糖蛋白 (P-gp) 流动.
- 在老鼠体内药理动力学概况.
- 分子对接和分子动力学 (MD) 模拟.
主要成果:
- 阿姆普雷纳维尔被确定为一种选择性的CB2激动剂.
- 优化的类似物实现了高CB2强度 (EC50<10nM),没有显著的CB1活性.
- 选择的化合物表现出有利的药理动力学特性,包括良好的半衰期 (>2小时) 和大脑暴露.
- 分子建模为VU6077967.7的结合模式和选择性提供了洞察力.
结论:
- 重用安普雷纳维尔产生了强效和选择性的CB2激动剂,具有有前途的中枢神经系统透.
- 这些新型类似物代表了开发向CB2受体的治疗方法的宝贵支架.
- 计算建模有助于理解和设计选择性CB2连接体.
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