风湿性关节炎的个性化诊断:基于等级的定性T细胞相关的签名
Hang Su1, Xingyi Li1, Yawei Li2
1School of clinical medicine, Guizhou Medical University, Guiyang, Guizhou, China.
PloS one
|June 26, 2025
概括
一个新的ICAM2-OSTF1签名 (IOS) 在检测类风湿性关节炎 (RA) 中显示出高精度. 这种诊断工具有助于区分RA和健康个体,为临床使用提供了有价值的辅助测试.
科学领域:
- 免疫学 免疫学 免疫学
- 遗传学 遗传学是一种遗传学.
- 类风湿病学 类风湿病学
背景情况:
- 类风湿性关节炎 (RA) 是一种全身性自身免疫性疾病,导致关节的破坏和患者的重大负担.
- 目前的RA诊断方法缺乏足够的有效性.
- 精确检测RA对于指导治疗策略至关重要.
研究的目的:
- 开发和验证一种用于类风湿性关节炎的新型诊断特征.
- 评估ICAM2-OSTF1签名 (IOS) 在区分RA患者与健康对照患者的诊断性能.
- 研究RA患者的免疫透和转录差异.
主要方法:
- 一个双向签名,ICAM2-OSTF1签名 (IOS),是使用基于等级的方法来得出的.
- IOS的诊断准确性是通过包括280个样本的培训和验证数据集来评估的.
- 使用ssGSEA,xCell和TIMER量化免疫透;还进行了转录组分析和网络分析.
主要成果:
- 在培训数据集中,IOS表现出高灵敏度 (87.39%) 和特异性 (86.79%).
- 在两个独立的队列中,IOS在验证数据集中实现了91.07%的准确性.
- RA 患者表现出高的亲炎性免疫透和免疫评分,免疫相关途径 (如T 细胞激活) 显著丰富.
结论:
- ICAM2-OSTF1签名 (IOS) 是一个可靠和准确的生物标志物,用于区分类风湿性关节炎与健康对照.
- IOS在不同实验室中表现一致,支持其作为RA辅助诊断测试的实用性.
- 该研究强调了免疫微环境改变在RA病变发生中的作用,并确定了可能参与该疾病的关键基因.
相关概念视频
01:20The JAK-STAT Signaling Pathway
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...
01:24T Cell Types and Functions
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...
01:22Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
The key clinical manifestations of Rheumatic heart disease (RHD) include several distinct cardiac symptoms.Carditis, a hallmark of acute rheumatic fever, involves inflammation of the heart's endocardium, myocardium, and pericardium. Chronic RHD often results from recurrent episodes of carditis. Its symptoms include the following:Murmurs are caused by valvular damage, especially to the mitral and aortic valves. Mitral stenosis or regurgitation is common, with characteristic heart murmurs...