在Th17细胞中,STAT3和SOX-5诱导BRG1介导的RORCE2的染色体重塑
Xian Wang1,2, Chao Han1, Di Yang1
1Institute of Immunology, Third Military Medical University (Army Medical University), 400038, Chongqing, People's Republic of China.
Communications biology
|January 3, 2024
概括
STAT3和SOX-5通过与RORCE2增强剂结合来激活RORγt基因表达. 这一过程对于T辅助17细胞的分化和实验性自身免疫脑膜炎的发展至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 遗传学 是一个遗传学.
背景情况:
- 与视网膜相关的孤儿受体马t (RORγt) 对于T辅助17 (Th17) 细胞的发展至关重要.
- 在 Th17 细胞中通过 RORCE2 增强剂激活 RORγt 基因中的 STAT3 的作用需要进一步阐明.
研究的目的:
- 调查STAT3和SOX-5调节RORCE2增强剂活性的精确机制.
- 确定STAT3,SOX-5和BRG1在Th17细胞分化和实验性自身免疫脑膜炎 (EAE) 中的作用.
主要方法:
- 在体外测试以评估由STAT3和SOX-5介导的RORCE2增强剂活性.
- 在RORCE2.2.中删除STAT3结合位点 (STAT3-BS) 的基因操纵.
- 在体内评估RORγt表达,Th17分化和EAE严重程度.
主要成果:
- 证实STAT3和SOX-5在体外中介于RORCE2增强剂活性.
- 在RORCE2中删除STAT3-BS显著降低了RORγt表达和Th17细胞分化.
- STAT3和SOX-5招募BRG1在RORCE2区域重塑核细胞,促进Th17细胞分化并降低EAE严重程度.
结论:
- STAT3和SOX-5是通过RORCE2增强剂对Th17细胞分化的关键调节者.
- 通过STAT3和SOX-5对RORCE2进行BRG1介导的染色质重塑是Th17细胞诱导中的关键步骤.
- 针对这种途径可能为EAE等自身免疫性疾病提供治疗策略.
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