Blimp-1和c-Maf调节IL10和负调节IL-12以及IL-27驱动的T辅助-1细胞中的常见和独特的促炎基因网络
Luke S Cox1, Marisol Alvarez-Martinez1, Xuemei Wu1
1Immunoregulation and Infection Laboratory, The Francis Crick Institute, London, England, NW1 1AT, UK.
Wellcome open research
|December 11, 2023
概括
转录因子Blimp-1和c-Maf调节T辅助1 (Th1) 细胞的反应. 它们诱导介质素-10 (IL-10) 并抑制干扰素- (IFN-γ),在病原体根除过程中最大限度地减少免疫病理.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 转录条例 转录条例 转录条例
背景情况:
- 产生干扰素- (IFN-γ) 的CD4+ T辅助1 (Th1) 细胞对于根除细胞内病原体至关重要,但如果不受控制,可能导致免疫病理.
- 介素-10 (IL-10) 是一种由包括Th1细胞在内的各种免疫细胞产生的细胞因子,它调节免疫反应,以最大限度地减少宿主损伤.
- 了解控制IL-10和Th1细胞中促炎细胞因子表达的转录网络对于管理免疫反应至关重要.
研究的目的:
- 阐明在分化小鼠Th1细胞中控制Il10和促炎细胞因子,特别是Ifng的表达的转录网络.
- 研究转录因子Blimp-1和c-Maf在Th1细胞内调节细胞因子基因表达中的作用.
主要方法:
- 在各种细胞因子条件下 (IL-12,IL-27,或两者) 在体外分化原始CD4+T细胞的大量RNA测序 (RNA-seq) 使用基因调节的计算分析.
- 整合RNA-seq数据与对转移酶可访问的染色质测定与测序 (ATAC-seq) 和文学衍生染色质免疫沉 (ChIP) -seq数据的测定.
- 使用来自小鼠的T细胞与特异性删除Prdm1 (Blimp-1) 和Maf (c-Maf) 转录因子的T细胞的验证.
主要成果:
- 转录因子Blimp-1和c-Maf对Th1细胞中细胞因子表达具有独特和共同的调节作用.
- 布林普-1和c-Maf合作诱导Il10基因表达,并直接抑制由IL-12和IL-27刺激的Th1细胞中的促炎细胞因子,包括Ifng.
- 这些因素提供了加强受调节的Th1细胞反应的机制.
结论:
- Blimp-1和c-Maf编排一个转录网络,包括独特和常见的抗炎和促炎基因.
- 这种调节网络增强了Th1细胞的反应,使得有效的病原体根除,同时最大限度地减少免疫病理.
- 这些发现强调了Blimp-1和c-Maf在平衡免疫效应器功能和宿主保护方面的关键作用.
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