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Gene Expression Profile of the Synovium and Cartilage in a Chronic Arthritis Rat Model

机译:慢性关节炎大鼠模型中滑膜和软骨的基因表达谱

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Background: Primary osteoarthritis (OA) is a polygenic disease. To investigate the gene expression profile of cartilage and synovium from osteoarthritis and healthy rats using cDNA microarray is beneficial to recognize the pathogenesis of osteoarthritis and provide evidence for gene therapy of osteoarthritis. Objective: The present study aimed to investigate the gene expression profile of the cartilage and synovium of chronic arthritis and healthy rats through cDNA microarray assay, and identify the differentially expressed genes. This study may be helpful for understanding the role of differentially expressed genes in osteoarthritis and the gene polymorphism of osteoarthritis. Methods: A total of 24 male Wistar rats were randomly divided into control group and osteoarthritis group (n = 12 per group). The synovial and cartilage were obtained and total RNA was extracted. cDNA microarray assay was performed to identify the differentially expressed genes, and cluster analysis was conducted. Results and Conclusion: A total of 82 differentially expressed genes were identified, among which 27 were up-regulated and 55 down-regulated. Gene microarray assay is effective to identify differentially expressed genes and may find out novel osteoarthritis associated genes. Multiple genes are involved in the pathogenesis of osteoarthritis. The differentially expressed genes provide important information for further studies on the pathogenesis of osteoarthritis and gene therapy of osteoarthritis.
机译:背景:原发性骨关节炎(OA)是一种多基因疾病。利用cDNA微阵列技术研究骨关节炎和健康大鼠软骨和滑膜的基因表达谱,有利于认识骨关节炎的发病机理,为骨关节炎的基因治疗提供依据。目的:本研究旨在通过cDNA微阵列技术研究慢性关节炎和健康大鼠软骨和滑膜的基因表达谱,并鉴定差异表达的基因。这项研究可能有助于理解差异表达基因在骨关节炎中的作用以及骨关节炎的基因多态性。方法:将24只雄性Wistar大鼠随机分为对照组和骨关节炎组(每组12只)。获得滑膜和软骨,并提取总RNA。进行cDNA微阵列分析以鉴定差异表达的基因,并进行聚类分析。结果与结论:共鉴定出82个差异表达基因,其中上调27个,下调55个。基因芯片检测法可有效鉴定差异表达的基因,并可能发现新的骨关节炎相关基因。多个基因参与骨关节炎的发病机制。差异表达的基因为进一步研究骨关节炎的发病机制和骨关节炎的基因治疗提供重要信息。

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