在纤维细胞样同胞细胞中,TNF诱导的神经平素-2会加剧类风湿性关节炎
Ke Jin1,2, Jingjing Ran1,2, Yuxin Deng1,2
1Department of Rheumatology and Immunology, and Laboratory of Human Diseases and Immunotherapies, Frontiers Science Center for Disease-related Molecular Network, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan Province, China.
Arthritis & rheumatology (Hoboken, N.J.)
|December 26, 2025
概括
瘤坏死因子 (TNF) 诱导的神经素-2 (NRP2) 驱动类风湿性关节炎 (RA) 炎症和疾病进展. 针对纤维细胞样同胞细胞 (FLS) 中的TNF-p65-NRP2通路,为RA提供了一种新的治疗策略.
科学领域:
- 免疫学 免疫学 免疫学
- 类风湿病学 类风湿病学
- 分子生物学分子生物学
背景情况:
- 类风湿性关节炎 (RA) 是一种慢性自身免疫性疾病,其特点是关节炎症和破坏.
- 纤维细胞样同胞细胞 (FLS) 在RA的发病过程中起着至关重要的作用.
- 神经皮林-2 (NRP2) 已涉及炎症过程,但其在RA中的具体作用尚未完全阐明.
研究的目的:
- 为了研究瘤缩因子 (TNF) 诱导的神经皮林-2 (NRP2) 在类风湿性关节炎 (RA) 中的作用.
- 探索NRP2作为RA纤维细胞样同胞细胞 (FLS) 中治疗点的潜力.
主要方法:
- 从健康的骨关节炎 (OA) 和RA患者的血清和突液中量化NRP2.
- 在突组织中分析NRP2表达的分析.
- 产生NRP2淘汰赛小鼠,并在血清转移诱发性关节炎 (STIA) 模型中进行评估.
- 对NRP2对FLS增殖,细胞亡和细胞因子分泌的影响的评估.
- 染色体免疫沉测序 (ChIP-seq) 用于在NRP2位点中识别p65结合位点.
主要成果:
- 在RA血清中NRP2水平升高与疾病活性相关.
- 在FLS中,TNF通过转录因子p65.5提高NRP2表达的调节.
- 通过增加FLS扩散和促炎性细胞因子/化学因子/MMP释放,NRP2扩大了炎症和组织损伤.
- 在STIA模型中,NRP2淘汰赛减轻了关节炎症和损伤.
- 通过NRP2介导的炎症主要由FAPα+THY1+细胞驱动.
结论:
- 由TNF诱导的NRP2是RA炎症持续性的关键驱动因素.
- NRP2作为RA的有前途的诊断生物标志物.
- 在FLS中准TNF-p65-NRP2轴为RA提供了一个新的治疗策略.
- 在RA中,FAPα+THY1+细胞子集对于NRP2介导的炎症至关重要.
相关概念视频
T Cell Types and Functions
2.1K
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...
2.1K
NF-κB-dependent Signaling Pathway
9.7K
The transcription factor NF-κB was discovered in 1986 in the lab of Nobel laureate Professor David Baltimore, for its interaction with the immunoglobulin light chain enhancer in B-cells. After more than three decades of study, it is now evident that NF-κB regulates the expression of over 100 genes. Most of these genes play an essential role in the innate and adaptive immune responses as well as the inflammatory responses of animals.
NF-κB-dependent Signaling Mechanism
The...
NF-κB-dependent Signaling Mechanism
The...
9.7K
The JAK-STAT Signaling Pathway
11.8K
Several cytokine receptors have tightly bound Janus kinase or JAK proteins attached at their cytosolic tail. Small signaling molecules such as cytokines, growth hormones, or prolactins bind to the cytokine receptors and initiate their dimerization. The dimerization brings the cytosolic JAKs together that trans-phosphorylate and activates each other. The activated JAKs now phosphorylate cytosolic tails of the cytokine receptors, which serve as binding sites for adaptor proteins such as SH2...
11.8K
TGF - β Signaling Pathway
10.4K
The TGF-β signaling pathway regulates cell growth, differentiation, adhesion, motility, and development. TGF-β ligands that induce TGF-β signaling are synthesized in their latent form. Several proteases or cell surface receptors such as integrins act upon the latent form, releasing the active ligand. There are three types of mammalian TGF-βs: (TGF-β1, TGF-β2, and TGF-β3) that bind as homodimers or heterodimers to TGF-β receptors. The TGF-β receptors...
10.4K


