来自Talaromyces marneffei的细胞外囊泡含有免疫原化合物,并调节THP-1巨细胞的反应
Kritsada Pruksaphon1, Artid Amsri1, Patcharin Thammasit1
1Department of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
Frontiers in immunology
|July 17, 2023
概括
来自Talaromyces marneffei真菌的细胞外囊泡 (EVs) 激活了人类的巨细胞. 这些真菌EV增强了巨细胞的抗菌活性,这表明它们在宿主防御真菌感染中的作用.
科学领域:
- 菌类学 菌类学是指菌类学.
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 病原性真菌释放含有毒性因子的细胞外囊泡 (EV).
- 塔拉罗米切斯马尔内菲 (Talaromyces marneffei) 是导致全身机会性菌根 (塔拉罗米切斯) 的原因.
- 在宿主-病原体相互作用中T. marneffei EVs的作用在很大程度上是未知的.
研究的目的:
- 研究T. marneffei EVs.的免疫原成分和免疫调节性质.
- 为了确定T. marneffei EVs对人类巨细胞功能的影响.
主要方法:
- 在T. marneffei EVs.中检测毒性因子 (黑色素,曼诺蛋白) 的免疫洗.
- 光显微镜观察THP-1巨细胞的EV吸收.
- 同化试验测量细胞因子 (IL-1β,IL-6,IL-10) 和巨细胞中CD86的表达.
- 评估评估巨细胞化和杀菌活性对T. marneffei conidia. 的测试.
主要成果:
- T. marneffei EVs含有真菌黑色素和酵母阶段特定的人蛋白.
- THP-1巨细胞内化了T. marneffei的EVs.
- EV暴露增加了巨细胞上IL-1β,IL-6,IL-10和CD86的表达,促进了M1极化.
- T. marneffei EVs增强了巨细胞化和杀死T. marneffei conidia的作用.
结论:
- 塔拉罗米切斯马尔内菲 (Talaromyces marneffei) EVs具有免疫原成分,并调节巨细胞的功能.
- 菌类EVs激活巨细胞,增强它们的抗微生物和杀菌活性.
- T. marneffei EVs在宿主对真菌感染的天生的免疫反应中发挥着重要作用.
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