• 1. Department of Rehabilitation Medicine, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P. R. China;
  • 2. Medical College of Zhengzhou University of Industrial Technology, Zhengzhou, Henan 451150, P. R. China;
  • 3. Department of Rehabilitation Medicine, the Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan 646000, P. R. China;
  • 4. Department of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China;
  • 5. Key Laboratory of Rehabilitation Medicine in Sichuan Province, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P. R. China;
HE Chengqi, Email: hxkfhcq@126.com
Export PDF Favorites Scan Get Citation

Objective To bioinformatically analyze the gene chip data of chondrocytes from osteoarthritis patients from the Gene Expression Omnibus (GEO) database, and explore the molecular mechanisms of osteoarthritis.Methods We searched the GEO database (up to April 23rd, 2021) for data of chondrocytes and gene expression profiling in human knee osteoarthritis via the key words of “osteoarthritis OR cartilage OR chondrocyte*”. Then, we selected the samples by our inclusion criteria. The data were normalized before analysis. After differentially expressed genes were identified, Gene Ontology, Kyoto Encyclopedia of Genes and Genomes, Search Tool for the Retrival of Interacting Genes/Proteinsm, R language, Perl language, Cytoscape software, and DAVID database were used to perform differentially expressed gene analysis, functional annotation, and enrichment analysis.Results The differentially expressed genes were mostly enriched in cell components and some extracellular regions, which participated in cell division, mitosis, cell proliferation and inflammatory response mainly via the regulation of protein kinase activity. The differentially expressed genes were mainly involved in the cell proliferation signaling pathway, mitogen-activated protein kinase signaling pathway, oocyte meiosis, cell cycle and so on.Conclusions Multiple signaling pathways are involved in the changes of chondrocytes in human knee osteoarthritis, mainly about cell cycle and protein metabolism genes/pathways. Inflammatory factors and cytokines may be the most important links in the pathogenesis of osteoarthritis.

Citation: WANG Haiming, ZHANG Chi, WEI Xiangyang, WEI Quan, HE Chengqi. Bioinformatics analysis of differential gene expression in chondrocytes of knee osteoarthritis. West China Medical Journal, 2021, 36(5): 623-631. doi: 10.7507/1002-0179.202103320 Copy

  • Previous Article

    Effect of ultrasound-guided intra-articular injection of platelet-rich plasma in the treatment of osteonecrosis of the femoral head: a retrospective study
  • Next Article

    Analysis of the effect of fascia manipulation on chronic ankle instability