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在侵袭性真菌病原体中,先天免疫调节作用因子的融合进化
Michael J Boucher1, Hiten D Madhani1
1Department of Biochemistry & Biophysics, University of California, San Francisco, San Francisco, CA 94158, USA.
Trends in microbiology
|November 20, 2023
概括
菌类分泌蛋白质效应物来感染人类,类似于细菌和寄生虫. 这些真菌效应剂向关键的免疫路径,揭示了病原体策略的融合进化.
科学领域:
- 菌类学 菌类学是指菌类学.
- 免疫学 免疫学 免疫学
- 病变的发生和发病.
背景情况:
- 侵袭性真菌感染是全球严重的健康问题.
- 虽然细菌和原生动物的病原体利用蛋白质效应器来破坏宿主防御,但真菌效应器仍然不太了解.
- 识别这些分子对于理解真菌病原体至关重要.
研究的目的:
- 为了识别和表征由人类真菌病原体分泌的蛋白质效应剂.
- 阐明真菌效应因子破坏宿主天生的免疫反应的机制.
- 探索真菌用来建立感染的进化策略.
主要方法:
- 比较基因组学以确定真菌病原体中的候选效应基因.
- 蛋白质组分析以检测分泌的真菌蛋白质.
- 在体外和体内测试以评估效应因子在调节宿主免疫路径 (例如,细胞亡,细胞亡,TLR信号传递) 的功能.
主要成果:
- 发现了具有保留功能的新型真菌蛋白效应剂.
- 证明真菌效应物向主要宿主免疫路径,包括细胞亡,髓状细胞偏振,Toll-like受体信号传递和胞体功能.
- 在真菌中,效应器策略的独立进化的证据反映了细菌和寄生虫中的效应器策略.
结论:
- 菌独立进化了复杂的蛋白质效应系统,以促进感染.
- 这些效应因子是操纵宿主免疫力的关键毒性因素.
- 了解真菌作用因子为融合进化提供了洞察力,并为对抗侵入性真菌感染的新型治疗策略开辟了道路.
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