德克丁-1连接体通过信号网络的差异激活在人类单细胞中产生独特的培训表型
Quen J Cheng1,2, Kylie Farrell3,4, Jeffrey Fenn4
1Department of Medicine, Division of Infectious Diseases, David Geffen School of Medicine, University of California, Los Angeles, CA, USA. quencheng@ucla.edu.
Scientific reports
|January 16, 2024
概括
天生的免疫训练根据所使用的Dectin-1连接体不同. 与β-glucans不同,zymosan训练减少了细胞因子诱导,突出了类似收费的受体信号传递的作用.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞生物学 细胞生物学
背景情况:
- 天生的免疫细胞可以被训练来记住以前的暴露.
- 一个Dectin-1连接体β-葡萄糖,通常用于诱导先天免疫训练.
- 不同的Dectin-1配体对先天性免疫训练的影响尚未完全理解.
研究的目的:
- 为了比较不同Dectin-1配体的先天免疫训练效果.
- 调查不同先天免疫训练表型背后的机制.
主要方法:
- 使用了先天免疫训练的体外模型.
- 比较β-葡萄糖,齐莫桑和耗尽的齐莫桑作为Dectin-1的激动剂.
- 分析了转录和细胞因子的概况.
- 研究了收费类受体 (TLR) 信号传递的作用.
主要成果:
- 枯竭的齐莫桑模仿了来自Candida albicans的β-葡萄糖的训练效应.
- 未经治疗的齐莫桑诱导了一种独特的训练表型,抑制TNF和IL-6.
- 与β-葡萄糖相比,齐莫桑强烈激活了NFκB和AP-1转录因子.
- 与TLR配体同时治疗将β-葡萄糖培养转化为类似于zymosan的表型.
结论:
- 对TLR信号通路的差异激活决定了Dectin-1连接体诱导的先天免疫训练的结果.
- 德克-1配体的来源和制备显著影响免疫细胞训练结果.
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