乔尔基诺利德B通过降低核糖体蛋白质的调节和干扰蛋白质合成来抑制菌根细菌的生长
Renxiang Zhao1, Xiuyan Han2, Changming Chen3
1College of Pharmacy, Hangzhou Normal University, Hangzhou 311121, People's Republic of China; The Second Affiliated Hospital of Dalian Medical University, Dalian 116044, People's Republic of China.
Bioorganic & medicinal chemistry
|July 5, 2025
概括
来自Euphorbia fischeriana的Jolkinolide B显示出对结核病 (TB) 的抗菌活性. 这种天然化合物抑制细菌蛋白质合成,并为结核病提供了潜在的新治疗策略.
科学领域:
- 药理学和传统医学的医学.
- 微生物学与传染病的研究
背景情况:
- 传统中国医学 (TCM) 使用Euphorbia fischeriana Steud (E. fischeriana) 治疗淋巴结结核病 (TB).
- 由于抗生素耐药性日益增加,探索新型抗结核治疗药物的天然化合物至关重要.
研究的目的:
- 调查E. fischeriana的一个组成部分Jolkinolide B对Mycobacterium tuberculosis的抗菌活性.
- 阐明Jolkinolide B在抑制M.结核病生长中的作用机制.
主要方法:
- 对抗M.结核病H37Ra.的最小抑制度 (MIC) 的确定.
- 在受感染的RAW264.7巨细胞中进行杀菌试验.
- 转录组分析以确定分子标.
- 用RT-qPCR验证基因表达变化.
- 对治疗的M.结核病的形态研究.
主要成果:
- 乔尔基诺利德B证明了抗菌细菌活性,MIC为3μg/mL,对抗M.结核病H37Ra.
- 它在2 × MIC时对感染M.结核的巨细胞表现出杀菌作用.
- 转录组分析显示,抑制核糖体蛋白质合成是关键机制.
- 通过RT-qPCR证实了微细菌核糖体蛋白表达的剂量依赖下调.
- 形态分析显示,Jolkinolide B诱导结核菌根的缩短和变形.
结论:
- 乔尔基诺利德B具有显著的抗菌素和杀菌性质.
- 它的机制涉及通过降低核糖体蛋白质表达的抑制蛋白质合成.
- 这项研究支持在结核病治疗策略中合理应用E. fischeriana衍生化合物.
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