Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (28): 4155-4161.doi: 10.3969/j.issn.2095-4344.2016.28.008

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Osteogenic efficiency of induced adipose-derived stem cells under Transwell co-cultured condition  

Sun Shi-chen, Dong Teng-zhe, Huang Xin, Zhang Yun-long, Chen Gang   

  1. Department of Oral and Maxillofacial Surgery, Stomatological Hospital, Tianjin Medical University, Tianjin 300070, China
  • Revised:2016-05-16 Online:2016-07-01 Published:2016-07-01
  • Contact: Chen Gang, M.D., Professor, Department of Oral and Maxillofacial Surgery, Stomatological Hospital, Tianjin Medical University, Tianjin 300070, China
  • About author:Sun Shi-chen, Studying for master’s degree, Department of Oral and Maxillofacial Surgery, Stomatological Hospital, Tianjin Medical University, Tianjin 300070, China
  • Supported by:

    the Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry of China, No. (2012)940

Abstract:

BACKGROUND: Under co-culture conditions, mesenchymal stem cells could regulate osteogenic differentiation and osteogenesis of osteoblasts.
OBJECTIVE: To observe the osteogenic efficiency of osteoblastic precursor cells co-cultured with undifferentiated bone marrow-derived mesenchymal stem cells, umbilical cord-derived mesenchymal stem cells, or placenta-derived mesenchymal stem cells in mineralization medium.
METHODS: Adipose-derived stem cells were induced in osteogenic differentiation medium for 7 days before being indirectly co-cultured with undifferentiated mesenchymal stem cells isolated from different tissues (bone marrow group, umbilical cord group and placenta group) in Transwell plates. Induced adipose-derived stem cells cultured alone served as control group. At different experimental intervals, quantitative analysis of alkaline phosphatase activity and calcified matrix was preformed to observe the effects of mesenchymal stem cells from different sources on the osteogenic efficiency of induced adipose-derived stem cells.
RESULTS AND CONCLUSION: Expression of alkaline phosphatase was significantly higher in different experimental groups than the control group (P < 0.05), and it was also higher in the bone marrow group than the umbilical cord and placenta groups (P < 0.05). Quantitative analysis of calcified matrix revealed that the experimental groups were significantly higher than the control group (P < 0.05); and in experimental groups, the umbilical cord group was higher than bone marrow group and placenta group(P < 0.05). These findings indicate that the osteogenic efficiency of induced adipose-derived stem cells is improved dramatically under co-culture conditions.

 

 

Key words: Stem Cells, Tissue Engineering, Alkaline Phosphatase

CLC Number: