调节性T细胞从自身反应性T细胞进行表观遗传重编程,缓解已建立的自身免疫力.
Tyler R Colson1, James J Cameron1, Hayley I Muendlein2
1Graduate Program in Immunology, Tufts Graduate School of Biomedical Sciences, Boston, United States of America.
JCI insight
|August 5, 2025
概括
将效应性T细胞重新编程成调控性T细胞 (Tregs) 会产生稳定的ER-Tregs. 这些ER-Tregs通过利用它们保存的效应器功能和特异性,有效地治疗小鼠的自身免疫神经炎症.
科学领域:
- 免疫学 免疫学 免疫学
- 细胞和分子免疫学 细胞和分子免疫学
- 这是一种自身免疫力.
背景情况:
- 将自身反应的CD4+效应T (Teff) 细胞重新编程为调节性T (Treg) 细胞是对自身免疫性疾病的一种潜在疗法.
- 这些重编程的Tregs在炎症环境中的稳定性和功能尚不清楚.
研究的目的:
- 研究表观遗传重新编程的Teff细胞变成Tregs (ER-Tregs) 的稳定性和治疗潜力.
- 为了比较ER-Tregs与其他Treg群体在治疗自身免疫神经炎症方面的疗效.
主要方法:
- 对Teff细胞进行表观遗传重编程,以激活核心Treg身份基因,生成ER-Tregs.
- 通过将ER-Tregs转移到自免疫神经炎症在疾病发作之前和之后的小鼠模型中.
- 对ER-Treg对Foxp3-过度表达的Teff细胞,诱导Tregs和内源Tregs的疗效进行比较分析.
主要成果:
- 表观遗传重编程产生了血统稳定的ER-Tregs.
- 一次ER-Treg转移可以预防和阻止小鼠自身免疫神经炎症.
- 与其他Treg类型相比,ER-Tregs显示出更高的保护性.
- 增强的疗效归因于遗传的自身抗原特异性和保存的效应器转录程序,改善了炎症环境中的健身和抑制能力.
结论:
- 自主反应的Teff细胞的表观遗传重编程产生强大而稳定的Tregs.
- ER-Tregs代表了治疗耐药自身免疫性疾病的有前途的治疗策略.
相关概念视频
T Cell Types and Functions
1.4K
When T cells with CD4 markers are activated, they give rise to two types of effector cells: helper T cells and regulatory T cells. Meanwhile, T cells with CD8 markers differentiate into effector cytotoxic T cells. The differentiation of CD4 T cells into helper T cell subsets, such as Th1, Th2, and Th17 cells, is dependent on the antigen type, antigen-presenting cell, and regulatory cytokines.
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
Th1 cells stimulate dendritic cells to express necessary co-stimulatory molecules on their surfaces for...
1.4K
Inflammatory Response
6.9K
An inflammatory response is a localized, nonspecific immune reaction that occurs when a tissue is injured. It is characterized by redness, swelling, heat, and pain, which are commonly called the cardinal signs and symptoms of inflammation. Inflammation can sometimes result in a loss of function.
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
Inflammation can be triggered by various stimuli, such as impact, abrasion, chemical irritation, infections, and extreme hot or cold temperatures. These can damage cells and connective tissue fibers,...
6.9K
Cell-mediated Immune Responses
72.0K
Overview
72.0K
T Cell Activation and Clonal Selection
4.4K
T cells are integral to our adaptive immune system, recognizing and effectively responding to foreign antigens. T cell activation and clonal selection are pivotal in orchestrating this immune response. This article elucidates these mechanisms, detailing the roles of cluster of differentiation (CD) markers, major histocompatibility complex (MHC) molecules, costimulatory signals, and the process of clonal selection.
Naive T cells that have not yet encountered an antigen express two primary CD...
Naive T cells that have not yet encountered an antigen express two primary CD...
4.4K


