Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (10): 1539-1546.doi: 10.3969/j.issn.2095-4344.2014.10.010

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Large-scale expansion of human umbilical cord mesenchymal stem cells in human platelet lysate as a substitute of fetal bovine serum

Li Bing-yao1, Wu Xiao-yun2, Wu Yan1   

  1. 1 Department of Histology and Embryology, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China; 2 Beijing Jingmeng Stem Cell High-Tech Co., Ltd., Beijing 100085, China
  • Online:2014-03-05 Published:2014-03-05
  • Contact: Wu Yan, M.D., Professor, Master’s supervisor, Department of Histology and Embryology, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China
  • About author:Li Bing-yao, Studying for master’s degree, Attending physician, Department of Histology and Embryology, Inner Mongolia Medical University, Hohhot 010059, Inner Mongolia Autonomous Region, China
  • Supported by:

    Stem Cell Technology Innovation Team Funded Projects in Inner Mongolia Autonomous Region, No. kjt0020947

Abstract:

BACKGROUND: Classic media and fetal bovine serum are commonly used in the culture of umbilical cord mesenchymal stem cells, but the potential risk of serum culture limits its clinical application.
OBJECTIVE: To use human platelet lysate alternative to fetal bovine serum for large-scale production of mesenchymal stem cells for therapeutic applications.
METHODS: Human platelet lysate was prepared by repeated freezing and thawing, centrifugation, filtration, and concentration. Human umbilical cord mesenchymal stem cells were cultured in Iscove’s Modified Dulbecco’s Medium containing 5% concentrated platelet lysate (experimental group) or 10% fetal bovine serum (control group). After separation and enzymatic digestion, human umbilical cord mesenchymal stem cells were subcultured at a concentration of 3 000/cm2 up to the fifth generation. Then, cell morphology and diameter, immune phenotype, osteogenic and adipogenic differentiation, and cloning efficiency were detected and compared between two groups.
RESULTS AND CONCLUSION: Human umbilical cord mesenchymal stem cells cultivated in human platelet lysate-supplemented media showed a smaller size and more elongated morphology than those in fetal bovine serum-supplemented media. Colony forming unit-fibroblast analyses further showed no significant differences in colony efficiency. Human umbilical cord mesenchymal stem cells cultivated in human platelet 
lysate-supplemented media showed an increase of proliferation capacity; whereas, similar immunophenotypes remained in the two groups. In vitro assays revealed intact differentiation potential. Moreover, human umbilical cord mesenchymal stem cells cultivated in human platelet lysate-supplemented media showed a significantly higher capacity to differentiate towards osteocytes, indicating human platelet lysate is an alternative to fetal bovine serum for low-density production of mesenchymal stem cells for therapeutic applications.


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, culture media, adipogenesis, actihaemyl

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