史无前例的美罗特类药物通过准NF-κB和PI3K信号通路来发挥抗炎作用
Yuqian Tang1, Die Yan1, Chuxing Liang1
1Key Laboratory of Chinese Medicinal Resource from Lingnan, Ministry of Education, Key Laboratory of Chronic Disease Prevention and Control of Traditional Chinese Medicine of Guangdong Higher Education Institutes, School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou 510006, P. R. China.
Organic letters
|January 27, 2026
概括
这项研究从真菌中分离出了新型的美罗特类物质,揭示了独特的碳骨架. 化合物1和6通过抑制氧化的产生和关键的炎症信号通路,表现出强大的抗炎作用.
科学领域:
- 自然产品化学 自然产品化学
- 药用化学 医学化学
- 菌生物技术是一种真菌生物技术.
背景情况:
- 梅罗特类是复杂的天然产品,来自于美酸盐和石基酸盐路径.
- 菌生物转化是产生结构多样化的二次代谢产物的强大工具.
- 了解新型天然产品的抗炎潜力对于药物发现至关重要.
研究的目的:
- 从共生真菌中分离和描述前所未有的美罗特类.
- 调查这些新型化合物的抗炎活性.
- 阐明其抗炎作用背后的分子机制.
主要方法:
- 使用色谱和光谱技术对美罗特类的隔离和结构阐明.
- 在使用RAW 264.7巨细胞系的体外抗炎试验中.
- 西方斑分析用于评估炎症标记物和信号蛋白的表达.
主要成果:
- 确定了四种新型的美罗特类 (1-10) 具有独特的化碳环系统.
- 化合物1-3采用5/3/6/6/6系统,4-5采用6/6/6四环架构,6采用5/3/6/6/5五环架构,7-10采用6/6/6/5架构.
- 化合物1和6显著抑制了氧化 (NO) 生产,超过了阳性对照印米他.
- 化合物1和6降低了可诱导的氧化合成酶 (iNOS) 的调节,并抑制了NF-κB,PI3K和IκB-α酸化.
结论:
- 这种共生真菌产生了结构多样化和前所未有的美罗特类.
- 化合物1和6具有强大的抗炎性质.
- 抗炎作用通过抑制iNOS表达和调节NF-κB和PI3K/Akt.等关键炎症信号通路来调节.
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