Lsd1通过抑制内源逆元和干扰素反应来保护T细胞的发育
Miaoran Xia1, Bingbing Wang1,2,3,4,5, Wujianan Sun6
1Department of Immunology, School of Basic Medical Sciences, Beijing Key Laboratory for Tumor Invasion and Metastasis, Capital Medical University, Beijing, China.
Life science alliance
|July 10, 2023
概括
组织素脱甲基酶Lsd1对于T细胞发育至关重要. 它的缺失导致胸膜缩,并通过抑制反元素来激活免疫路径,影响T细胞功能.
科学领域:
- 免疫学 免疫学 免疫学
- 分子生物学分子生物学
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
背景情况:
- 李素特异性脱甲酶1 (Lsd1) 已知在哺乳动物生物学中的作用.
- 它在胸腺细胞发育过程中的特定功能,即胸腺细胞中T细胞成熟的过程,以前尚不清楚.
研究的目的:
- 研究Lsd1在胸细胞发育中的生理作用.
- 阐明Lsd1在T细胞成熟中的功能背后的分子机制.
主要方法:
- 在胸细胞中特定删除Lsd1.
- 单细胞RNA测序 (scRNA-seq). 在一个单细胞RNA测序.
- 链特异性总RNA测序和染色体免疫沉测序 (ChIP-seq).
- 单细胞T细胞受体 (TCR) 的测序.
主要成果:
- 胸膜细胞中的Lsd1缺失导致胸膜缩,并减少了与增殖受损的外围T细胞群.
- 废除Lsd1导致了内源逆元的减压,触发了病毒模拟状态和干扰素通路激活.
- 删除Lsd1阻断了T细胞发育过程中的CD8下调,并诱导了先天性记忆表型.
- 单阳性 (SP) 细胞中的TCR重排时间和曲目并未因LSd1删除而显著改变.
结论:
- Lsd1对于维持胆小细胞发育和T细胞平衡至关重要.
- Lsd1调节内源逆元体表达,防止异常免疫激活.
- Lsd1影响T细胞分化,CD8表达和记忆表型的发展.
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