Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (7): 1003-1008.doi: 10.3969/j.issn.2095-4344.2014.07.004

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COX-2 mRNA expression at different stages of osteoarthritis synoviocytes

Zeng Ming-zhu1, Duan Kan2, Yuan Chang-shen2, Mei Qi-jie2, Qin Kai3   

  1. 1Orthopedics Hospital of Guangxi Autonomous Region, Nanning 530012, Guangxi Zhuang Autonomous Region, China
    2The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, Guangxi Zhuang Autonomous Region, China
    3Graduate School, Guangxi University of Chinese Medicine, Nanning 530001, Guangxi Zhuang Autonomous Region, China
  • Revised:2013-12-03 Online:2014-02-12 Published:2014-02-12
  • Contact: Duan Kan, M.D., Chief physician, the First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning 530023, Guangxi Zhuang Autonomous Region, China
  • About author:Zeng Ming-zhu, Master, Orthopedics Hospital of Guangxi Autonomous Region, Nanning 530012, Guangxi Zhuang Autonomous Region, China

Abstract:

BACKGROUND: COX-2 gene actually exists in the joint fibroblast-like synoviocytes, it affects osteoarthritis occurrence and development. Understanding the differences of COX-2 gene expression levels at different stages of osteoarthritis synoviocytes has important theoretical significance for the occurrence and development of osteoarthritis, as well as the role of synoviocytes in this process.
OBJECTIVE: To analyze the difference of COX-2 mRNA at different stages of osteoarthritis fibroblast-like synoviocytes.
METHODS: Synovial membrane from 44 osteoarthritis patients and 12 normal cases were selected. Primary cells were cultured to passage 4 fibroblast-like synoviocytes for the use in the experiment. COX-2 mRNA expression in osteoarthritis fibroblast-like synoviocytes and normal fibroblast-like synoviocytes was detected using real-time fluorescence quantitative RT-PCR. The relative quantitative analysis was performed using 2-ΔΔCt method.
RESULTS AND CONCLUSION: Expression of COX-2 mRNA in osteoarthritis fibroblast-like synoviocytes was significantly higher than that in normal fibroblast-like synoviocytes (P < 0.05). The expression levels reached a peak at early osteoarthritis group, with significant differences compared with middle and late osteoarthritis groups (P < 0.05). There was no significant difference between middle and later osteoarthritis groups (P > 0.05). COX-2 mRNA might be important biological marker for the inflammation in osteoarthritis, and mainly plays a role in early osteoarthritis stage.



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


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Key words: osteoarthritis, knee, synovial membrane, fibroblasts, reverse transcriptase polymerase chain reaction, COX-2

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