Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (36): 5385-5391.doi: 10.3969/j.issn.2095-4344.2016.36.010

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Effect of basic fibroblast growth factor gene transfection on bone marrow mesenchymal stem cell transplantation for diabetes mellitus

Tian Xue-pin, Liu Hai-ying   

  1. Department of Endocrinology, Chengde Central Hospital, Chengde 067000, Hebei Province, China
  • Revised:2016-07-12 Online:2016-09-02 Published:2016-09-02
  • About author:Tian Xue-pin, Master, Attending physician, Department of Endocrinology, Chengde Central Hospital, Chengde 067000, Hebei Province, China

Abstract:

BACKGROUND: Existing studies have shown that bone marrow mesenchymal stem cells can significantly improve islet function in diabetic rats to decrease excessively high blood glucose level, which may be related to the enhancement of differentiation ability of autologou pancreatic stem cells.
OBJECTIVE: To observe the therapeutic efficacy of basic fibroblast growth factor gene eukaryotic expression vector (PEGFP-C3-BFGF) transfection of bone marrow mesenchymal stem cells in diabetic rats.
METHODS: Recombinant adenovirus (Ad.aFGF) mediated PEGFP-C3-BFGF was transfected into bone marrow mesenchymal stem cells, and PEGFP-C3-BFGF expression was observed using fluorescence microscopy. Eighty Sprague-Dawley rats were randomly divided into normal control group, diabetes group, transplantation group, gene transfection group, with 20 rats in each group. After modeling, rats in different groups were given portal vein injection of normal saline, PBS, 1 mL of bone marrow mesenchymal stem cell suspension, and 1 mL of PEGFP-C3-BFGF-transfected bone marrow mesenchymal stem cell suspension. RT-PCR method was used to detect mRNA expression of matrix metalloproteinases in pancreatic tissue of rats in each group. Blood glucose levels of rats were detected at 24 hours, 3, 7, 14, 21 days after transplantation. ELISA method was used to detect plasma insulin levels in rats. Pathological changes of the pancreas were observed using hematoxylin-eosin staining.
RESULTS AND CONCLUSION: Under the fluorescence microscope, PEGFP-C3-BFGF transfected into cells after 48 hours showed significant specific red fluorescence. Two weeks after transplantation, matrix metalloproteinases mRNA expression was significantly increased in the diabetes group compared with the control group (P < 0.05), while it was decreased in the transplantation and gene transfection groups compared with the diabetes group (P < 0.05). After transplantation, the blood glucose levels in rats were ranked as follows: control group < gene transfection group < transplantation group < diabetes group (P < 0.05), and the plasma insulin levels in rats ranked as follows: control group > gene transfection group > transplantation group > diabetes group (P < 0.05). Pathological findings of the pancreas showed that the transplantation group was superior to the diabetes group, but inferior to the gene transfection group that was similar to the control group. All these findings indicate that PEGFP-C3-BFGF-transfected bone marrow mesenchymal stem cell transplantation can improve blood glucose levels and stimulate insulin secretion in diabetic rats, which may improve the severity of diabetes mellitus by decreasing the mRNA expression of matrix metalloproteinases.

 

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

Key words: Stem Cells, Mesenchymal Stem Cells, Transplantation, Diabetes Mellitus, Fibroblast Growth Factor 2, Tissue Engineering

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