在类风湿性关节炎中,GM-CSF强化了巨细胞,使其从它们循环中的单细胞前体中保留炎症特征
Jianing Chen1, Minghua Zhan2,3, Yanling Zhao1
1Department of Rheumatology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Clinical Immunology Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100730, China.
Journal of translational medicine
|August 8, 2025
概括
颗粒细胞-巨细胞殖民地刺激因子 (GM-CSF) 维持类风湿性关节炎 (RA) 单细胞衍生的巨细胞的亲炎状态,通过CCL22驱动T细胞反应. 这突出了关键的RA途径和潜在的治疗点.
科学领域:
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
- 细胞生物学 细胞生物学
背景情况:
- 外围单细胞是类风湿性关节炎 (RA) 中巨细胞的关键来源.
- 在没有外部刺激的情况下,RA单细胞在分化为巨细胞期间保持促炎特征的能力尚不清楚.
研究的目的:
- 为了调查类风湿性关节炎 (RA) 单细胞是否在分化为巨细胞时保持其亲炎性表型.
- 探索粒细胞-巨细胞殖民地刺激因子 (GM-CSF) 和巨细胞殖民地刺激因子 (M-CSF) 在这个过程中的作用.
- 在RA中识别潜在的致病机制和治疗点.
主要方法:
- 从RA患者和健康对照组 (HCs) 的外周血液CD14+单细胞使用GM-CSF或M-CSF进行了差异化.
- 采用了转录组分析,代谢分析,流细胞计和功能测试.
- 对GM-CSF和M-CSF和CCL22的同位体表达水平与疾病活性相关 (DAS28-CRP).
主要成果:
- 来自RA单细胞的GM-CSF分化的巨细胞 (GM-DMs) 保留了类似M1的亲炎性表型,与M-CSF分化的巨细胞 (M-DMs) 不一样.
- 在RA的GM-DM中,STAT5过度活化,氧化酸化增强 (OXPHOS),糖分解受损,CCL22.22显著上调.
- 突CCL22升高与M1巨细胞透和疾病活性相关,促进Th1/Th17细胞反应.
结论:
- 转基因-CSF维持了RA单细胞衍生的巨的亲炎性质,由CCL22驱动的T细胞反应介导.
- 转基因-CSF/CCL22轴代表了RA中的一种致病机制.
- CCL22被确定为类风湿性关节炎的潜在新疗法标.
更多相关视频
相关概念视频
Differentiation of Common Myeloid Progenitor Cells
3.3K
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
3.3K
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
Regulation of Hematopoietic Stem Cells
3.3K
All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
3.3K


