在Galleria mellonella中,在Madurella mycetomatis的谷物发育过程中不同表达的铁调节通路
Imad Abugessaisa1,2,3, Mickey Konings4, Ri-Ichiroh Manabe5
1Laboratory for Large-Scale Biomedical Data Technology, RIKEN Center for Integrative Medical Sciences, Yokohama City, Kanagawa, Japan. imad.abugessaisa@a.riken.jp.
Nature communications
|June 25, 2025
概括
这项研究揭示了铁的获取对于在瘤感染中对Madurella mycetomatis的粒状形成至关重要. 了解这些途径可能会导致这种慢性真菌病的新诊断和治疗策略.
科学领域:
- 医学真菌学 医学真菌学
- 传染性疾病 传染性疾病
- 分子生物学分子生物学
背景情况:
- 瘤是一种由Madurella mycetomatis引起的慢性皮下感染.
- 粒状形成是菌瘤的标志,但其潜在机制尚不清楚.
研究的目的:
- 为了研究参与Madurella mycetomatis谷粒形成的分子过程.
- 识别与谷物发育相关的关键宿主和病原体基因.
主要方法:
- 使用了Galleria mellonella幼虫感染模型.
- 在感染后的多个时间点进行了转录基因分析 (RNA测序).
- 进行LC-MS/MS和RP-HPLC分析以确定蛋白质和代谢物.
主要成果:
- 确定了3498个G. mellonella和136个M. mycetomatis基因的差异表达.
- 在宿主和病原体中突出显著上调铁运输相关基因.
- 证实M. mycetomatis利用了来自Holoferritin的铁,并确定了一个假定的 siderophore.
结论:
- 铁的获取途径对于M. mycetomatis的谷粒形成至关重要.
- 这些发现表明瘤诊断和治疗的新目标.
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