相关实验视频
Updated: Jun 7, 2025

06:56
Isolation of Double Negative αβ T Cells from the Kidney
Published on: May 16, 2014
12.3K
双阴性自身反应细胞 (CD4-CD8-) 在酸胆介导的类风湿性关节炎中的作用:孟德尔的随机化研究
1Department of Orthopedics, Ningbo NO.6 Hospital, 1059 Zhongshan East Road, Ningbo, Zhejiang, 315040, People's Republic of China.
Heliyon
|November 19, 2024
概括
门德尔的随机化揭示了酸丁胆,一种脂质体,增加了类风湿性关节炎的风险. 双阴性自身反应细胞调解这种联系,这表明免疫细胞在脂质体诱导的RA中发挥作用.
科学领域:
- 免疫学和遗传学
- 脂质代谢 脂质代谢是什么
- 类风湿病学 类风湿病学
背景情况:
- 类风湿性关节炎 (RA) 是一种具有复杂病因的慢性自身免疫性疾病.
- 脂质体 (LP) 是基于脂质的纳米粒子,具有不同的生物作用.
- 脂质体和RA之间的潜在因果关系,以及免疫细胞 (IC) 作为调解者的作用,仍然不完全理解.
研究的目的:
- 使用孟德尔随机化 (MR) 调查脂质体 (LP) 和类风湿性关节炎 (RA) 之间的潜在因果关系.
- 探索免疫细胞 (IC) 在LP和RA之间的潜在因果途径中的调解作用.
主要方法:
- 利用了公开可用的全基因组协会研究 (GWAS) 数据.
- 采用孟德尔随机化 (MR) 和反变量加权 (IVW) 作为主要方法.
- 应用MR-Egger,加权中位数,加权模式和简单模式方法进行灵敏度分析.
- 通过使用科克兰的Q和MR-Egger评估异质性和性.
主要成果:
- 发现酸丁胆 (一种脂质体成分) 增加了RA的风险 (P=0.013,OR=1.073).
- 酸丁胆水平的增加与较高的双阴性自身反应细胞 (DNAC) 水平有关 (P=0.006,OR=1.152).
- 较高的DNAC水平与较高的RA风险密切相关 (P=0.001,OR=1.105),介导了对RA的脂质体效应的19.2%.
结论:
- 确定了脂质体 (特别是酸丁胆) 与类风湿性关节炎之间的潜在因果关系.
- 确定了免疫细胞,特别是DNAC,作为脂质体-RA途径的潜在媒介.
- 需要进一步的研究来阐明精确的机制,涉及RA发病的脂质体组件和免疫细胞.
相关概念视频
T Cell Types and Functions
954
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...
954
The JAK-STAT Signaling Pathway
8.7K
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...
8.7K
Genome-wide Association Studies-GWAS
12.5K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
12.5K

