Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (6): 891-897.doi: 10.3969/j.issn.2095-4344.2016.06.019

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Effect of basic fibroblast growth factor and insulin-like growth factor-1 on proliferation and collagen synthesis of bone marrow mesenchymal stem cells

Xu Hai-long1, Ding Yue1, Xie Hong1, Sun Xiao-ju1, Xie Hui-xin2   

  1. 1the People’s Hospital of Liaoning Province, Shenyang 110016, Liaoning Province, China; 2Graduate School of China Medical University, Shenyang 110001, Liaoning Province, China
  • Received:2015-12-19 Online:2016-02-05 Published:2016-02-05
  • Contact: Ding Yue, Master, Chief physician, the People’s Hospital of Liaoning Province, Shenyang 110016, Liaoning Province, China
  • About author:Xu Hai-long, Attending physician, the People’s Hospital of Liaoning Province, Shenyang 110016, Liaoning Province, China
  • Supported by:

    the Science and Technology Plan Project of Liaoning Province, No. 2013225021

Abstract:

BACKGROUND: How to control the orderly formation of collage in skin repair and scarring process is worthy of attention.
OBJECTIVE: To investigate the effect of basic fibroblast growth factor (bFGF) combined with insulin-like growth factor 1 (IGF-1) on the proliferation and collagen synthesis of rat bone marrow mesenchymal stem cells in vitro.
METHODS: Rat bone marrow mesenchymal stem cells were isolated and cultured to induce adipogenic differentiation assessed by oil red O staining and osteogenic differentiation identified by alizarin red staining in vitro. Passage 3 cells were cultured in the medium containing bFGF, IGF-1, combination of them or the control fluid, respectively. MTT assay was used to detect cell proliferation at 12, 24, 48, 72 and 96 hours of culture. The expression of type I collagen and type III collagen were detected by RT-PCR and western blot after 10 days of incubation.
RESULTS AND CONCLUSION: Compared with the control group, bFGF or IGF-1 alone significantly promoted the proliferation of bone marrow mesenchymal stem cells, and inhibited the expression of type I collagen and type III collagen. After combined use of bFGF and IGF-1, the proliferation of bone marrow mesenchymal stem cells was improved more significantly, and the expression of type I collagen and type III collagen returned to normal levels. These findings indicate that the combination of IGF-1 and bFGF can promote proliferation of bone marrow mesenchymal stem cells and restrain the expression of type I collagen and type III collagen, which may be helpful for control and repair of scar formation during wound healing.