探索 (+) - 纳尔特雷克森前体的功能:它们作为TLR4对手的活性和治疗吗啡成的潜力
Jingwei Gao1,2, Cong Lin1, Cong Zhang1,2
1Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China.
Journal of medicinal chemistry
|February 2, 2024
概括
研究人员优化了 (+) - 纳尔特雷的合成,并发现其前体是强大的收费类受体4 (TLR4) 抗剂. 这些化合物有望通过减少炎症和疼痛通路来治疗吗啡成.
科学领域:
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
- 免疫学 免疫学 免疫学
背景情况:
- 收费类受体4 (TLR4) 路径中断与慢性炎症,神经病痛和成有关.
- (+) - 纳尔特雷是一种阿片类药物衍生的TLR4抗剂,具有中度的血脑屏障透.
- 经典的阿片类受体不是 (+) - 纳尔特雷的目标.
研究的目的:
- 开发一个优化合成 (+) - 纳尔特雷.
- 为了研究 (+) - 纳尔特雷前体的TLR4抗潜力: (+) - 14 - 基代因 (1) 和 (+) - 14 - 基摩尔芬 (3).
- 评估这些前体在减少吗啡诱导的行为影响方面的活体有效性.
主要方法:
- 建立了一个10步合成 (+) - 纳尔特雷.
- 前体 (1和3) 的TLR4抗活性与 (+) - 纳尔特雷进行了比较.
- 活体研究评估了前体对吗啡敏感性和条件化的位置偏好的影响.
- 微质激活和TNF-α表达被测量在中间前额叶皮质和腹膜区域.
主要成果:
- 前体 (1和3) 显示TLR4对抗活性比 (+) - 纳尔特雷大100倍,特别是抑制TLR4-TRIF通路.
- 在体内,前体通过抑制微质激活和TNF-α表达,显著降低了吗啡的行为效应.
- 与 (+) -14-基代因 (1) 相比, (+) -14-基代因 (3) 的半衰期更长,口服生物利用性更好.
结论:
- 实现了 (+) - 纳尔特雷的优化合成.
- 前体 (+) -14-基代丁和 (+) -14-基摩尔芬是强大的TLR4抗剂.
- 这些前体代表了对吗啡成的潜在治疗剂,向关键的炎症途径.
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