跨平台的转录基因数据集成在人类骨关节炎中发现过度活跃的神经免疫特征
Michael D Newton1, Hannah Swahn2, Dana E Orange3
1Department of Orthopaedic Surgery, University of Michigan, Ann Arbor, MI, USA.
Osteoarthritis and cartilage
|September 1, 2025
概括
骨关节炎 (OA) 关节膜显示增加的神经炎症和神经免疫信号,由STAT1,FLI1和VDR驱动,导致OA疼痛.
科学领域:
- 分子生物学
- 免疫学
- 神经科学
背景情况:
- 慢性关节炎与骨关节炎 (OA) 疼痛有关.
- 这种关联背后的分子机制尚未完全理解.
研究的目的:
- 描述OA synovium的转录特征
- 确定与OA疼痛相关的信号通路.
主要方法:
- 对8个人类微阵列和RNA测序数据集的重新分析 (N=153个受试者).
- 使用差异表达基因 (DEGs) 的加权Z测试进行综合分析.
- 进行基因组丰富,细胞类型丰富和调节分析;使用单细胞RNA测序对基因表达进行映射;预测与背部根 (DRG) 数据的配体受体相互作用.
主要成果:
- 鉴定了276个在骨髓炎中差异激活的通路,包括免疫通路 (MHC II类) 和细胞外矩阵组织.
- 降低VEGF信号和血管生成的调节.
- 与巨细胞,B/ T淋巴细胞和突纤维细胞相关的疼痛和神经免疫相互作用 (神经炎症) 的增强.
- 发现了控制27个神经免疫基因的基因调节网络 (STAT1,FLI1,VDR).
- 在突细胞和DRG受体之间预测了76个突-DRG相互作用.
结论:
- 最终阶段的骨关节炎表现出神经炎症和神经免疫信号通路的显著丰富.
- 这些途径可能由STAT1,FLI1和VDR调节.
- 研究结果表明OA疼痛有神经免疫基础.
相关概念视频
Genome-wide Association Studies-GWAS
14.1K
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...
14.1K
The JAK-STAT Signaling Pathway
9.2K
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...
9.2K
Psychoneuroimmunology: Cardiovascular Disease
77
Psychoneuroimmunology (PNI) is a multidisciplinary field that examines how psychological factors, particularly stress, interact with the immune system and impact physical health. Research in PNI has shown that chronic or traumatic stress can disrupt both the hypothalamic-pituitary-adrenal axis and the sympathetic nervous system. These disruptions contribute to serious health conditions, including cardiovascular diseases.
A key area of focus in PNI is the relationship between stress and coronary...
A key area of focus in PNI is the relationship between stress and coronary...
77
Autoimmune Disorders
667
Autoimmune diseases are a group of disorders in which the body's immune system mistakenly attacks its own cells, tissues, and organs. This results from an overactive immune response against substances and tissues normally present in the body. Let's delve into the concept and mechanism of autoimmune diseases from an immune system point of view, explore different causes and examples of such diseases, and discuss potential solutions.
Concept and Mechanism of Autoimmune Diseases
The immune...
Concept and Mechanism of Autoimmune Diseases
The immune...
667
Inflammatory Response
7.0K
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,...
7.0K
EPS and iPS Cells in Disease Research
2.9K
Embryonic and induced pluripotent stem cells are excellent models for disease research because of their ability to self-renew and differentiate into most cell types. Somatic cells from a patient are isolated and reprogrammed into induced pluripotent stem cells or iPSCs. These iPSCs are later differentiated into the desired cell type, which mirrors the diseased cell of the patient. In this way, disease models have been created for investigating diseases such as Down syndrome, type I diabetes,...
2.9K


