Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (23): 4181-4186.doi: 10.3969/j.issn.1673-8225.2012.23.001

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Expression of annexin A1 in rabbit bone marrow mesenchymal stem cells during their early differentiation into osteoblasts and adipocytes in vitro

Pan Xin-yuan1, Liang Bo-wei2, Zhao Jin-min2, Yin Guo-qian1   

  1. 1Department of Plastic and Aesthetic Surgery,
    2Department of Trauma and Hand Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China;
  • Received:2011-10-18 Revised:2011-11-02 Online:2012-06-03 Published:2013-11-06
  • Contact: Zhao Jin-min, Doctoral supervisor, Professor, Chief physician, Department of Trauma and Hand Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China zhaojinmin@126.com
  • About author:Pan Xin-yuan★, Studying for master’s degree, Department of Plastic and Aesthetic Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China Liang Bo-wei★, Master, Attending physician, Department of Trauma and Hand Surgery, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, Guangxi Zhuang Autonomous Region, China LBW5515@163.com u2coldplay@163.com

Abstract:

BACKGROUND: Studies have reported different views on the expression of annexin A1 (ANX A1) in bone marrow mesenchymal stem cells (BMSCs) during their differentiation.
OBJECTIVE: To investigate the expression of ANX A1 in rabbit BMSCs during their differentiation into osteoblasts and adipocytes in vitro.
METHODS: BMSCs were isolated by whole bone marrow adherence method, and then the cells were cultured in media with osteogenic inducer, adipogenic inducer and non-inducer respectively.
RESULTS AND CONCLUSION: The expression of ANX A1 mRNA was obviously decreased during the cell differentiation into osteoblasts compared with those without differentiation (P < 0.01). In contrast, the expression of ANX A1 mRNA was obviously increased in BMSCs cultured in medium with adipogenic inducer (P < 0.01). Osteogenic inducer could inhibit the growth of BMSCs to achicve an increase in apoptosis (P < 0.01), while the adipogenic inducer had little effects on cell growth and apoptosis (P > 0.05). ANX A1 may play an important role in regulation of BMSCs differentiation into adipocytes in vitro without the role of inducer. However, the association with osteogenic differentiation is uncertain.

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