2,5-二氧化乙通过影响NFATc1信号通路在体外减弱RANKL介导的骨质结晶发生
Hai-Wei Chen1, Chi-Fen Chen2, Pei-Rong Lee3
1Department of Orthopedic Surgery, Fooyin University Hospital, Pingtung 92849, Taiwan; Department of Medical Laboratory Sciences and Biotechnology, Fooyin University, Kaohsiung 83102, Taiwan.
Bioorganic & medicinal chemistry letters
|November 4, 2024
概括
来自Ganoderma bambusicola的2,5-dihydroxyacetophenone (DHAP) 抑制了骨质细胞的分化和骨的再吸收. DHAP特别针对激活的T细胞细胞质1 (NFATc1) 途径的核因子,为治疗骨质损失疾病提供了潜力.
科学领域:
- 生物化学 生物化学
- 细胞生物学 细胞生物学
- 药理学 药理学是指药理学的学科.
背景情况:
- 骨质细胞过度活跃会导致骨质疏松症等疾病的骨质损失.
- 自然化合物为骨解病提供了潜在的治疗策略.
- 甘竹 (Ganoderma bambusicola) 含有具有潜在生物活性的化合物.
研究的目的:
- 为了研究2,5-二二氧化乙 (DHAP) 的抗骨质结晶效应.
- 阐明DHAP影响骨质细胞分化和功能的分子机制.
- 在体外评估DHAP对RANKL诱导的骨质结晶生成的影响.
主要方法:
- 使用RANKL刺激的体外骨质细胞分化模型.
- 评估骨质细胞分化标志物 (动氨酸环形成,TRAP活性).
- 对基因和蛋白质表达的分析 (NFATc1,Cathepsin K,TRAP).
- 评估骨再吸收活动.
- 对信号通路 (NFATc1,AP-1,NF-κB,ROS) 的研究.
主要成果:
- DHAP显著抑制了骨质细胞的分化,活性环的形成和骨的再吸收.
- 在骨质细胞生成过程中,DHAP抑制了NFATc1的转录活性.
- 观察到NFATc1,cathepsin K (Ctsk) 和TRAP的表达减少.
- DHAP没有影响活性氧物种 (ROS) 生产或AP-1和NF-κB信号传递.
结论:
- 通过抑制RANKL诱导的骨质细胞分化和功能,DHAP表现出强烈的抗骨质细胞生成活性.
- 主要机制涉及抑制NFATc1信号通路.
- DHAP代表了一种潜在的治疗候选物,用于治疗骨解性骨疾病.
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