在 Echinococcus multilocularis 感染中通过emu-let-7-5p调节宿主调节性T细胞分化,通过向NFκB2来调节
Liqun Wang1, Keke Wu1, Li Li1
1State Key Laboratory for Animal Disease Control and Prevention, National Para-Reference Laboratory for Animal Echinococcosis, Key Laboratory of Animal Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences (CAAS), Lanzhou, China.
概括
Echinococcus multilocularis使用emu-let-7-5p诱导调节性T细胞 (Treg),抑制免疫反应. 抑制这种寄生虫microRNA可以减少Treg分化和膜虫菌病中的虫负担.
科学领域:
- 寄生虫学的寄生虫学
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
背景情况:
- 膜性乙球菌 (AE) 涉及由调节性T细胞 (Treg) 创造的免疫抑制微环境.
- Echinococcus multilocularis诱导Treg分化的机制,特别是通过寄生虫微RNA (miRNA),尚不清楚.
研究的目的:
- 调查寄生虫衍生的miRNAs在E. multilocularis诱导的Treg分化中的作用.
- 阐明这种免疫逃避策略背后的分子机制.
主要方法:
- 在被E. multilocularis感染的小鼠中诱导Treg分化.
- 在淋巴细胞中量化emu-let-7-5p.
- 对Treg标记物的外体介导miRNA影响的分析.
- 通过RNA干扰来击emu-let-7-5p.
- 在emu-let-7-5p抑制后对负荷的评估.
主要成果:
- 在小鼠中,E. multilocularis感染显著诱导了Treg分化.
- 感染小鼠的淋巴细胞上调了Emu-let-7-5p的调节.
- 含有emu-let-7-5p的外基因组促进了Treg标记物表达,而敲击则逆转了这种效应.
- 埃穆-莱特-7-5p针对NFκB2进行调节Treg分化.
- 淘汰emu-let-7-5p减少了Treg分化,并显著降低了虫负载.
结论:
- 埃穆-莱特-7-5p是通过驱动Treg差异化来成为E. multilocularis免疫逃避的一个关键调解者.
- 这种寄生虫miRNA通过向NFκB2.2来抑制宿主免疫反应.
- 准emu-let-7-5p是一个潜在的治疗策略来控制AE.
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