Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (50): 8140-8146.doi: 10.3969/j.issn.2095-4344.2014.50.018

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Intra-articular injection of sodium hyaluronate versus placenta-derived mesenchymal stem cells-differentiated chondrocytes for treatment of knee osteoarthritis

Li Zhi1, Zhao Wei1, Liu Wei2, Zhou Ye2, Jia Jing-qiao3, Yang Li-feng1   

  1. 1Department of Orthopedics, 2Department of Obstetrics, Fengtian Hospital of Shenyang Medical University, Shenyang 110024, Liaoning Province, China; 3WELLCARE Stem Cell Biotechnology Co., Ltd., Benxi 117000, Liaoning Province, China
  • Received:2014-10-10 Online:2014-12-03 Published:2014-12-03
  • Contact: Yang Li-feng, Associate chief physician, Department of Orthopedics, Fengtian Hospital of Shenyang Medical University, Shenyang 110024, Liaoning Province, China
  • About author:Li Zhi, Studying for doctorate, Chief physician, Department of Orthopedics, Fengtian Hospital of Shenyang Medical University, Shenyang 110024, Liaoning Province, China
  • Supported by:

    the Project of Liaoning Science and Technology Department, No. 2012225014

Abstract:

BACKGROUND: Placenta-derived mesenchymal stem cells have been shown to have a strong proliferative capacity, which can be induced to differentiate into nerve cells, vascular endothelial cells, epithelial cells and islet-like cells, but there are few studies about the chondrogenic differentiation in the treatment of knee osteoarthritis.
OBJECTIVE: To compare the intra-articular injection of sodium hyaluronate and placenta-derived mesenchymal stem cells-induced chondrocytes for treatment of knee osteoarthritis.
METHODS: (1) Knee osteoarthritis models were established in the left hind of New Zealand white rabbits. After 
5.5 weeks of plaster fixation, the articular cartilage was observed under microscope. (2) Human placenta-derived mesenchymal stem cells were isolated and cultured using IV collagenase digestion, and flow cytometry was used to detect cell surface markers to identify the placenta-derived mesenchymal stem cells. Passage 3 placenta-derived mesenchymal stem cells were cultured in chondrocyte induction medium and observed under inverted microscope. (3) The rabbits were randomly divided into sodium hyaluronate group, placenta-derived mesenchymal stem cells group, and induced chondrocyte group, and then intra-articular injection of sodium hyaluronate, placenta-derived mesenchymal stem cells, and induced chondrocyte was given, respectively. After 1-5 weeks, the knee cartilage was taken and observed under microscope.
RESULTS AND CONCLUSION: In vitro cultured human placenta-derived mesenchymal stem cells proliferated to produce a large amount of adherent cells with typical mesenchymal cell morphology; after culture in inducing culture medium, cells presented with micelles and could not proliferate to form adherent cells. There were no adherent cells on the micelles base, showing human placenta-derived mesenchymal stem cells can differentiate into chondrocytes. Under hematoxylin-eosin staining, rabbit articular cartilage was repaired in all the groups, but the intra-articular injection of chondrocytes differentiated from placenta-derived mesenchymal stem cells were better than the intra-articular injection of sodium hyaluronate and placenta-derived mesenchymal stem cells.


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


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Key words: stem cells, mesenchymal stem cells, chondrocytes, osteoarthritis, knee

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