中国组织工程研究 ›› 2025, Vol. 29 ›› Issue (2): 302-311.doi: 10.12307/2025.245

• 组织工程相关大数据分析 Big data analysis in tissue engineering • 上一篇    下一篇

骨关节炎的氧化应激相关基因和免疫浸润分析

吴  傲1,于  鹏1,滕加文2,孔  鹏2,卞泗善2   

  1. 1山东中医药大学第一临床医学院,山东省济南市  250000;2山东中医药大学附属医院,山东省济南市  250000
  • 收稿日期:2024-01-17 接受日期:2024-02-22 出版日期:2025-01-18 发布日期:2024-05-24
  • 通讯作者: 卞泗善,博士,主任医师,山东中医药大学附属医院,山东省济南市 250000
  • 作者简介:吴傲,男,1999年生,安徽省宿州市人,汉族,山东中医药大学在读硕士,主要从事骨与关节疾病机制的研究。

Analysis of oxidative stress-related genes and immune infiltration in osteoarthritis

Wu Ao1, Yu Peng1, Teng Jiawen2, Kong Peng2, Bian Sishan2     

  1. 1The First Clinical Medical College of Shandong University of Traditional Chinese Medicine, Jinan 250000, Shandong Province, China; 2Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250000, Shandong Province, China
  • Received:2024-01-17 Accepted:2024-02-22 Online:2025-01-18 Published:2024-05-24
  • Contact: Bian Sishan, MD, Chief physician, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250000, Shandong Province, China
  • About author:Wu Ao, Master candidate, The First Clinical Medical College of Shandong University of Traditional Chinese Medicine, Jinan 250000, Shandong Province, China

摘要:

文题释义:
氧化应激:是指氧化和抗氧化系统失衡,生物分子如脂质和蛋白质等受到过量的活性氧和活性氮的氧化作用,造成机体过度氧化,引起细胞功能混乱和组织受损。
骨关节炎:是一种慢性疾病,会导致软骨和周围组织受损,以疼痛、僵硬和关节功能丧失为特点。

背景:目前对于骨关节炎的发病机制尚不清楚,缺乏有效控制疾病的手段,且研究多集中在免疫领域,对氧化应激领域研究较少。
目的:探索氧化应激与免疫浸润在骨关节炎中的作用,并预测相关miRNA和治疗药物。
方法:从GEO数据库中获取GSE55235数据集(10例骨关节炎样本和10例健康对照样本)和GSE55457数据集(10例骨关节炎样本和10例健康对照样本)进行合并,获取差异表达基因,并结合氧化应激基因得到差异表达氧化应激基因。对差异表达氧化应激基因进行KEGG、GO富集分析,并使用GSEA富集分析评价骨关节炎通路和生物过程。使用STRING在线平台和Cytoscape软件建立了蛋白质相互作用网络,运行Degree算法得到关键基因,从GEO数据库中获取GSE1919作为验证数据集,对关键基因进行差异分析及受试者工作特征曲线分析,得到核心基因。此外,用CIBERSORT对免疫浸润进行评估,并探索核心基因与免疫细胞的相关性,使用TargetScan对核心基因进行miRNA预测及使用DSigDB数据库对靶点药物进行预测。
结果与结论:①确定了65个差异表达氧化应激基因和5个核心基因(IL1B、CXCL8、MYC、NFKBIA、JUN);②富集分析结果显示,差异表达氧化应激基因的主要聚焦点包括氧化应激、白细胞介素17、破骨细胞分化、流体剪切应力以及动脉粥样硬化等通路;③5个核心基因的受试者工作特征曲线下面积均> 0.85,说明对诊断骨关节具有良好的特异性和敏感性,且与免疫细胞密切关联;④miRNA的预测结果是
hsa-miR-3937,治疗小分子药物包括二甲双胍、离子霉素和塞来昔布等。结果表明:骨关节炎中存在氧化应激与免疫浸润,且免疫浸润参与激活氧化应激。核心基因及预测的miRNA可作为诊断骨关节炎的新型标志物,预测的小分子药物可治疗骨关节炎。
https://orcid.org/0009-0004-2571-8454(吴傲)
中国组织工程研究杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松;组织工程

关键词: 骨关节炎, 氧化应激, 免疫浸润, 差异基因, 生物标志物, miRNA, 药物预测

Abstract: BACKGROUND: At present, the pathogenesis of osteoarthritis is still unclear, and there is a lack of effective means to control the disease. Research on osteoarthritis is mostly concentrated in the field of immunity, and there are few studies in the field of oxidative stress. 
OBJECTIVE: To explore the roles of oxidative stress and immune infiltration in osteoarthritis and to predict related miRNAs and therapeutic agents. 
METHODS: The GSE55235 dataset (10 samples of osteoarthritis and 10 healthy control samples) and the GSE55457 dataset (10 samples of osteoarthritis and 10 healthy control samples) were obtained from the GEO database for merging to obtain their differentially expressed genes that were combined with oxidative stress genes to get the differentially expressed genes of oxidative stress. The differentially expressed genes of oxidative stress were analyzed for KEGG and GO enrichment, and the osteoarthritis pathways and biological processes were evaluated using GSEA enrichment analysis. The protein-protein interaction network was constructed using the STRING online website and Cytoscape software, and the Degree algorithm was run to get the key genes. The GSE1919 dataset was obtained from the GEO database as a validation dataset, and the key genes were analyzed by variance analysis and receiver operating characteristic curve analysis to get the core genes. In addition, immune infiltration was evaluated by CIBERSORT and the correlation between core genes and immune cells was explored. miRNA prediction of core genes was performed using TargetScan and target drugs were predicted using the DSigDB database. 
RESULTS AND CONCLUSION: Sixty-five differentially expressed genes and five core genes (IL1B, CXCL8, MYC, NFKBIA, JUN) associated with oxidative stress were identified. Enrichment analysis showed that differentially expressed genes associated with oxidative stress were concentrated in the pathways of oxidative stress, interleukin-17, osteoclast differentiation, fluid shear stress and atherosclerosis. The area under the receiver operating characteristic curve for the five core genes exceeded 0.85, indicating their excellent specificity and sensitivity in diagnosing bone and joint conditions, as well as their close association with immune cells. The predicted miRNA was has-miR-3937, and the therapeutic small-molecule drugs were metformin, ionomycin and celecoxib. To conclude, oxidative stress and immune infiltration exist in osteoarthritis, and immune infiltration is involved in activating oxidative stress. The core genes and predicted miRNAs can be used as novel markers for the diagnosis of osteoarthritis, and small molecule drugs are predicted to treat osteoarthritis.

Key words: osteoarthritis, oxidative stress, immune infiltration, differentially expressed gene, biomarker, miRNA, drug prediction

中图分类号: