中国组织工程研究 ›› 2013, Vol. 17 ›› Issue (46): 8062-8068.doi: 10.3969/j.issn.2095-4344.2013.46.014

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

小干扰RNA对人类风湿关节炎患者滑膜细胞基因表达的影响

侯春凤1,孙  闵2,李树杰1,赵建宏1,王吉波3   

  1. 1济宁市第一人民医院风湿免疫科,山东省济宁市  272002;2济宁医学院临床学院,山东省济宁市  272013;3青岛大学附属医院风湿免疫科,山东省青岛市  266071
  • 出版日期:2013-11-12 发布日期:2013-11-30
  • 通讯作者: 王吉波,博士,主任医师,青岛大学附属医院风湿免疫科,山东省 青岛市 266071 Wangjibo2005@126.com
  • 作者简介:侯春凤★,女,1976年生,山东省济宁市人,汉族,2008年青岛大学医学院毕业,硕士,主治医师,主要从事类风湿关节炎发病机制的研究。 hfengle@126.com

Effect of small interfering RNA on gene expression of synovial cells in patients with rheumatoid arthritis

Hou Chun-feng1, Sun Min2, Li Shu-jie1, Zhao Jian-hong1, Wang Ji-bo3   

  1. 1 Department of Immunology and Rheumatology, Jining First People’s Hospital, Jining  272002, Shandong Province, China; 2 Clinical College, Jining Medical University, Jining  272013, Shandong Province, China; 3 Department of Immunology and Rheumatology, Affiliated Hospital, Qingdao University, Qingdao  266071, Shandong Province, China
  • Online:2013-11-12 Published:2013-11-30
  • Contact: Wang Ji-bo, M.D., Chief physician, Department of Immunology and Rheumatology, Affiliated Hospital, Qingdao University, Qingdao 266071, Shandong Province, China Wangjibo2005@126.com
  • About author:Hou Chun-feng★, Master, Attending physician, Department of Immunology and Rheumatology, Jining First People’s Hospital, Jining 272002, Shandong Province, China hfengle@126.com

摘要:

背景:类风湿关节炎的病因尚不十分明确,但核转录因子κB在类风湿性关节炎发病中的作用,己逐渐引起风湿病学者的关注。
目的:通过RNA干扰技术阻断人类风湿关节炎滑膜细胞核转录因子κB信号通路,探索其在类风湿关节炎治疗中的应用前景。
方法:分离、消化、培养滑膜细胞备用。根据小分子干扰RNA设计原则,确定核转录因子κB的小分子干扰RNA 四条目标基因序列,合成并构建核转录因子κB小分子干扰RNA表达载体。将构建好的4条pGenesil-1/核转录因子κB小分子干扰RNA表达载体转染入生长状态良好的一代滑膜细胞,并设立空白和阴性对照组。收集转染后12 h、24 h、48 h、72 h、5 d、7 d不同时间段的细胞,并提取RNA。测定细胞内核转录因子κB mRNA相对表达水平,筛选出有效抑制核转录因子κB mRNA表达的小分子干扰RNA质粒载体。
结果与结论:核转录因子κB在人类风湿关节炎滑膜细胞高表达,3#pGenesil-1/核转录因子κB能显著抑制人类风湿关节炎滑膜细胞核转录因子κB mRNA表达。RNA干扰技术可阻断核转录因子κB mRNA的表达,因此,可将阻断核转录因子κB信号通路作为基因治疗类风湿关节炎的靶点。

关键词: 组织构建, 组织构建细胞学实验, 关节炎, 类风湿, 核转录因子κB, pGenesil-1表达载体, RNA干扰, 实时荧光定量聚合酶链反应

Abstract:

BACKGROUND: The etiological factor for rheumatoid arthritis remains unclear, but the effects of nuclear factor-κB on the onset of rheumatoid arthritis have been gradually paid great attention by rheumatologists.
OBJECTIVE: By using the RNA interference (RNAi) technique to block the signal pathway of nuclear factor-κB mRNA of human rheumatoid arthritis synovial cells, this study explored its application prospect in the treatment of rheumatoid arthritis.
METHODS: The synovial cells were isolated, digested, and cultured for further use. In accordance with the design principle of small interfering RNA (siRNA), target sequences of siRNA of nuclear factor-κB were identified, and siRNA expression vector of nuclear factor-κB was synthesized and constructed. The four pGenesil-1/nuclear factor-κB siRNA expression vectors were transfected into the first passage of synovial cells that well grew. Blank and negative control groups were set. Cells at 12, 24, 48, 72 hours, 5 and 7 days after transfection were collected, and RNA was extracted. Intracellular nuclear factor-κB mRNA expression levels were measured, and siRNA  plasmid vector that could effectively inhibit nuclear factor-κB mRNA expression was screened out.
RESULTS AND CONCLUSION: Nuclear factor-κB highly expressed in synovial cells after human rheumatoid arthritis. 3#pGenesil-1/nuclear factor-κB apparently suppressed nuclear factor-κB mRNA expression in synovial cells with human rheumatoid arthritis. RNAi technique blocked nuclear factor-κB mRNA expression. Therefore, the block of nuclear factor-κB signal pathway might be a good target for rheumatoid arthritis gene therapy.

Key words: arthritis, osteoarthritis, arthritis, rheumatoid, rheumatoid factor, rheumatoid nodule, nuclear factor-kappa B, synovial membrane

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