Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (10): 1508-1513.doi: 10.3969/j.issn.2095-4344.2014.10.006

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26RFa effects on osteogenic differentiation of human bone marrow mesenchymal stem cells 

Du Bin1, Lin Qing1, Liu Meng-jun1, Chen Zhi-xin2   

  1. 1 First Clinical Medical College of Lanzhou University, Lanzhou 730000, Gansu Province, China; 2 First Department of Orthopedics, Gansu Provincial Hospital, Lanzhou 730000, Gansu Province, China
  • Online:2014-03-05 Published:2014-03-05
  • Contact: Chen Zhi-xin, M.D., Chief physician, First Department of Orthopedics, Gansu Provincial Hospital, Lanzhou 730000, Gansu Province, China
  • About author:Du Bin, Master, First Clinical Medical College of Lanzhou University, Lanzhou 730000, Gansu Province, China

Abstract:

BACKGROUND: Studies have shown that 26RFa plays an important regulatory role in bone formation, pain, endocrine, cardiovascular disease and energy metabolism.
OBJECTIVE: To observe the effects of 26RFa on the proliferation and differentiation of human bone marrow mesenchymal stem cells.                   
METHODS: In order to obtain the most efficient concentration of 26RFa, human bone marrow mesenchymal stem cells were detected by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide analysis. Cells were inoculated into 6-well plates and then divided into two groups: experimental group treated with
10-11 mol/L 26RFa and control group with no 26RFa. After 8, 12 and 16 days of osteogenic induction, alkaline phosphatase activities in induced cells were detected using alkaline phosphatase kit. After 21 and 28 days of osteogenic induction, alizarin red staining and Von Kossa staining were performed. The number of calcified nodules over each coverslip was calculated, and the expression of cbfa1 protein was detected by western blot assay.
RESULTS AND CONCLUSION: After 8, 12, and 16 days of osteogenic induction, the alkaline phosphatase activities were higher in the experimental group than the control group (P < 0.05, P < 0.01, P < 0.05). After 21 and 28 days of osteogenic induction, alizarin red staining and Von Kossa staining showed that the number of calcified nodules was higher in the experimental group than the control group, and the expression of cbfa1 protein was also higher in the experimental group (P < 0.05). These findings indicate that 26RFa can promote the osteogenic differentiation of human bone marrow mesenchymal stem cells under appropriate culture conditions.


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, osteoblasts, alkaline phosphatase

CLC Number: