布林普-1和c-Maf调节免疫基因网络,以防止病原体诱导的大肠炎的不同途径
Marisol Alvarez-Martinez1, Luke S Cox1, Claire F Pearson2
1Immunoregulation and Infection Laboratory, The Francis Crick Institute, London, UK.
Nature immunology
|April 12, 2024
概括
转录因子Blimp-1和c-Maf控制细胞因子IL-10以防止肠道炎症. 它们的缺失导致严重的结肠炎,并揭示了人类炎症性肠病背后的机制.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 微生物学 微生物学
背景情况:
- 肠道免疫反应由细胞因子IL-10调节,以预防免疫病理.
- 了解控制IL-10产生的分子机制对于管理炎症状况至关重要.
研究的目的:
- 研究转录因子Blimp-1 (Prdm1) 和c-Maf在肠道T细胞中调节IL-10和其他细胞因子中的作用.
- 阐明Blimp-1和c-Maf缺乏对肠道炎症和免疫细胞反应的影响.
主要方法:
- 结肠膜自身白细胞 (LPLs) 的单细胞RNA测序.
- 纯化的CD4+T细胞的RNA测序和ATAC测序.
- 转基因小鼠的产生和感染 (缺乏Prdm1和c-Maf).
主要成果:
- Blimp-1和c-Maf共同主导调节IL-10并抑制T细胞效应体中的炎症性细胞因子.
- 这两种因素的缺失导致严重的结肠炎,TH1/NK/ILC1反应增加.
- 仅仅MAF缺乏症就会增加TH17反应和T细胞-髓状细胞-中性粒细胞相互作用.
- 缺少Prdm1或Maf的LPL中的差异基因表达反映了人类炎症性肠病中发现的基因.
结论:
- Blimp-1和c-Maf是通过控制IL-10和炎症性细胞因子产生来控制肠道免疫平衡的关键调节者.
- 这些转录因子的失调有助于严重的结肠炎,并可能是人类炎症性肠病的基础机制.
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