Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (19): 3507-3510.doi: 10.3969/j.issn.1673-8225.2012.19.018

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Rat bone marrow mesenchymal stem cells differentiation into neuron-like cells in vitro

Kuang Tao1, Wang Lei2, Song Wen3, Meng Dong-mei4   

  1. 1Department of Special Need and Health, 3Department of Radiology, Affiliated Hospital of Medical College, Qingdao University, Qingdao  266003, Shandong Province, China; 2Department of Hematology, Qingdao Municipal Hospital, Qingdao  266071, Shandong Province, China; 4Gout Laboratory, Qingdao Key Laboratories of Common Diseases, Affiliated Hospital of Medical College, Qingdao University, Qingdao  266003, Shandong Province, China
  • Received:2011-12-04 Revised:2012-02-19 Online:2012-05-06 Published:2012-05-06
  • Contact: Meng Dong-mei, Attending physician, Gout Laboratory, Qingdao Key Laboratories of Common Diseases, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, Shandong Province, China mengdongmeiqd@gmail.com
  • About author:Kuang Tao, Associate chief physician, Department of Special Need and Health, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, Shandong Province, China kuangtk@126.com

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Abstract:

BACKGROUND: Bone marrow mesenchymal stem cells (BMSCs) can be induced to differentiate into neuron-like cells in new environment after transplantation, and then to replace damaged cells for reconstructing neural circuit.
OBJECTIVE: To establish the co-culture system between rat BMSCs and neural cells in vitro, and to study the influence of neural cells on the differentiation of BMSCs into neuron-like cells in the co-culture system.
METHODS: The neural cells obtained from Wistar rat fetal brain tissue and BMSCs gained from rat thighbone were co-cultured in Transwell culture plate. The morphological changes of BMSCs were observed and the special markers of neural cells in BMSCs were examined by immunofluorescence on the fifth day of the co-culture. The results were compared with control group which where BMSCs were alone cultured.
RESULTS AND CONCLUSION: BMSCs in the neural cells co-culture system extended, were radial, connected each other. Neuron specific enolase immunoreactions showed positive results, showing neuron-like cells. The positive ratio of neuron specific enolase-positive cells was (33.0±10.5)%. However, BMSCs in the control group did not express neuron morphological character. Immunofluorescence exhibited that cells were negative for neuron specific enolase. These indicate that microenvironment provided by neurons improves the differentiation of BMSCs into neuron-like cells.

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