Foxp3调节染色体结构的重组,以建立调节性T细胞身份
Zhi Liu1,2, Dong-Sung Lee3,4, Yuqiong Liang2
1Shanghai Immune Therapy Institute, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Nature communications
|November 6, 2023
概括
转录因子Foxp3对于建立调节性T细胞 (Treg) 特定的3D染色体结构至关重要. 这种组织对于Treg谱系的规范和免疫反应中的功能至关重要.
科学领域:
- 免疫学 免疫学 免疫学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 分子生物学分子生物学
背景情况:
- 染色体构造在调节基因表达和细胞谱系规范方面发挥着关键作用.
- 细胞特异性转录因子在免疫细胞中建立细胞类型特异性的3D染色体结构的精确机制,特别是在T细胞分化过程中,尚未完全理解.
研究的目的:
- 研究转录因子如何在调控性T细胞 (Treg) 分化过程中对3D染色质结构作出贡献.
- 阐明Foxp3在建立Treg特异性染色体结构中的作用及其与基因表达的关联.
主要方法:
- 在Treg细胞分化过程中对3D染色质组织的全面映射.
- 分析Foxp3结合点与染色质环的关系.
- 野生类型Tregs与Foxp3突变Tregs (敲进/敲退和域互换突变) 中的染色质相互作用的比较.
主要成果:
- 特定于Treg的3D染色体结构在Treg谱系规范过程中逐渐建立,并与Treg特征基因表达相关联.
- 在Treg特异性染色体循环的点上,Foxp3的结合部位显著丰富.
- Foxp3对于建立Treg特定的3D染色体架构至关重要,独立于Foxp3二元形成.
结论:
- 福克斯p3在调节性T细胞的3D染色质景观的塑造中起着关键的,被低估的作用.
- 通过Foxp3调解的Treg特异性染色体组织的建立对Treg谱系的身份和功能至关重要.
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