来自Pleione bulbocodioides的天然存在的南通过直接准Src 激酶来抑制骨质细胞的形成
Ying Yang1, Lin Li2, Dehong Yu3
1State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Taipa, Macao SAR, 999078, China; State Key Laboratory of Chemical Biology and Drug Discovery, Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hong Kong Special Administrative Region of China.
European journal of pharmacology
|June 18, 2025
概括
一种天然化合物PPb通过向Src. kinase来抑制骨质细胞的形成和活动. 这一发现提供了一种潜在的新策略,通过减少骨再吸收来管理骨质疏松症.
科学领域:
- 生物化学 生化学
- 药理学 药理学是指药理学的学科.
- 骨质疏松症研究 骨质疏松症研究
背景情况:
- 骨质细胞 (OC) 过度活化驱动骨质再吸收,这是骨质疏松症的关键因素.
- 来自植物的抗吸收剂对骨质疏松症的治疗有前途.
- 此前还没有发现具有抗骨质细胞活性的天然.
研究的目的:
- 为了识别具有抗骨质细胞活性的天然.
- 研究一种新型化合物PPb作为Src激酶抑制剂的作用机制.
- 在骨质疏松症的临床前模型中评估PPb的疗效.
主要方法:
- 基于结构的虚拟选,用于识别Src酶结合剂的天然南库.
- 实验室试验评估PPb对骨质细胞形成,基因表达和骨再吸收的影响.
- 使用斑马鱼模型进行体内研究,以评估PPb在减弱骨质损失方面的有效性.
- 机制研究以阐明PPb对Src酶和下游信号通路 (MAPK,PI3K/AKT) 的影响.
主要成果:
- 来自Pleione bulbocodioides的二二烯PPb被确定为一种强大的Src激酶抑制剂.
- PPb显著抑制了RANKL诱导的骨质细胞形成,F-actin环形成和骨质再吸收.
- 在骨质疏松斑马鱼中,PPb的使用减弱了葡萄糖皮质激素诱导的骨损失.
- PPb抑制了Src激活和下游信号通路,导致骨质细胞分化和功能降低.
结论:
- 通过准Src酶,PPb有效抑制骨质细胞分化和功能.
- PPb通过减少骨再吸收来证明治疗骨质疏松症的治疗潜力.
- 这项研究突出了天然素作为新型骨质疏松症治疗药物的来源的潜力.
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