Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (38): 6172-6178.doi: 10.3969/j.issn.2095-4344.2014.38.018

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Effects of hyaluronic acid on osteopontin mRNA and CD44 mRNA expression in human osteoarthritic chondrocytes

Zhou Bin1, Zhang Fang-jie2, Luo Wei3, Gao Shu-guang3, Zeng Chao3, Xiong Yi-lin3, Li Yu-sheng3,Lei Guang-hua2   

  1. 1Xiangya Hospital of Central South University, Changsha 410008, Hunan Province, China; 2Institute of Orthopedics, Xiangya Hospital of Central South University, Changsha 410008, Hunan Province, China; 3Department of Orthopedics, Xiangya Hospital of Central South University, Changsha 410008, Hunan Province, China
  • Received:2014-07-14 Online:2014-09-10 Published:2014-09-10
  • Contact: Lei Guang-hua, M.D., Professor, Institute of Orthopedics, Xiangya Hospital of Central South University, Changsha 410008, Hunan Province, China
  • About author:Zhou Bin, Master, Physician, Xiangya Hospital of Central South University, Changsha 410008, Hunan Province, China

Abstract:

BACKGROUND: Progressive fracture of the cartilage is considered the characteristic lesion in later osteoarthritis, the expression of osteoarthritis-related factors such as hyaluronic acid, osteopontin and CD44 in osteoarthritic cartilage is increased.
OBJECTIVE: To investigate the effect of hyaluronic acid on the expression of osteopontin mRNA and CD44 mRNA of chondrocytes in the in vitro cultured chondrocytes of patients with knee osteoarthritis.
METHODS: The cartilage samples obtained from osteoarthritic patients were cultured and purified into acquire chondrocytes in vitro, and the cells were divided into three groups: blank control group, hyaluronic acid      (100 mg/mL) group and hyaluronidase (200 mg/mL) group. After 48 hours of cell culture, real-time quantitative polymerase chain reaction assay was used to detect the expression of CD44 mRNA and osteopontin mRNA. The difference of the expression levels before and after the intervention of hyaluronic acid was compared and analyzed using SPSS 17.0 software.
RESULTS AND CONCLUSION: Compared with the blank control group, hyaluronic acid (100 mg/mL) upregulated osteopontin mRNA expression in the chondrocytes, hyaluronidase (200 mg/mL) also reduced osteopontin mRNA expression in the chondrocytes. The CD44 mRNA expression in the chondrocytes of 
hyaluronic acid (100 mg/mL) group and hyaluronidase (200 mg/mL) group was lower than that in the blank control group. Hyaluronic acid can upregulate the expression of the osteopontin mRNA expression in the osteoarthritic chondrocytes; the biphasic effects of hyaluronic acid on CD44 mRNA expression in osteoarthritic chondrocytes might be associated with the molecule weight of hyaluronic acid.



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, chondrocytes, osteopontin, hyaluronic acid, antigen, CD44

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