Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (33): 5295-5300.doi: 10.3969/j.issn.2095-4344.2015.33.010

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Local intra-articular injection of sodium hyaluronate delays articular cartilage degeneration after traumatic osteoarthritis 

Zhou Jian-lin, Deng Shuang, Fang Hong-song, Peng Hao, Qiu Bo   

  1. Department of Bone and Joint Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hebei Province, China
  • Online:2015-08-13 Published:2015-08-13
  • Contact: Zhou Jian-Lin, Department of Bone and Joint Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hebei Province, China
  • About author:Zhou Jian-lin, M.D., Attending physician, Department of Bone and Joint Surgery, Renmin Hospital of Wuhan University, Wuhan 430060, Hebei Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81301592

Abstract:

BACKGROUND: Sodium hyaluronate is an effective treatment for osteoarthritis, but the underlying mechanism remains unclear. There is evidence that abnormal expressions of matrix metalloproteinase (MMP)-1, -3 and -9 and tissue inhibitor of metalloproteinase (TIMP)-1 and -2 show great effects on osteoarthritis.

OBJECTIVE: To assess the influence of intra-articular injection of sodium hyaluronate on expressions of MMPs-1, 3, 9 and tissue inhibitor of TIMPs-1, 2 in the rabbit cartilage after osteoarthritis.

METHODS: Twenty-four mature New Zealand white rabbits were divided into normal control, model, and sodium hyaluronate groups. The model and sodium hyaluronate groups underwent unilateral anterior cruciate ligament transection, and rabbits in the sodium hyaluronate group received 0.3 mL of 1% sodium hyaluronate via intra-articular injection at 4 weeks after modeling, once a week for 5 weeks. At 11 weeks following surgery, the rabbits were killed and the cartilage was harvested to extract total RNA. mRNA expressions of MMPs-1, 3, 9 and TIMPs-1, 2 in the cartilage were analyzed using real-time PCR for each group.

RESULTS AND CONCLUSION: Compared with the model group, the range and extent of cartilage damage was reduced in the sodium hyaluronate group (P < 0.01), and Mankin scores were noticeably decreased (P < 0.05). In the cartilage, mRNA expressions of MMPs-1, 3, 9 were enhanced and mRNA expressions of TIMPs-1, 2 were down-regulated in the model group. However, the mRNA expression levels of MMPs-1, 3, 9 and TIMPs-1, 2 in the articular cartilage were not obviously changed in the sodium hyaluronate group. These results suggest that MMPs-1, 3, 9 and TIMPs-1, 2 are involved in the progression of osteoarthritis and the therapeutic mechanism of sodium hyaluronate is not realized through the down-regulation of their expressions during development of osteoarthritis. Sodium hyaluronate for treatment of osteoarthritis is a complex process and the underlying mechanisms require further investigation.

 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

Key words: Tissue Engineering, Osteoarthritis, Cartilage, Articular, Matrix Metalloproteinases

CLC Number: