Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (28): 4549-4554.doi: 10.3969/j.issn.2095-4344.2015.28.022

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Telomerase reverse transcriptase genetic modification of bone marrow mesenchymal stem cells in diabetes treatment 

Liu Jia   

  1. Xianshuigu Hospital, Tianjin 300350, China
  • Online:2015-07-02 Published:2015-07-02
  • About author:Liu Jia, Physician, Xianshuigu Hospital, Tianjin 300350, China

Abstract:

BACKGROUND: Pancreas or islet cell transplantation and stem cell transplantation bring hope to cure diabetes, but pancreas or islet transplantation appears to have a lack of donors as well as immune rejection problems, limiting their clinical development. Therefore, stem cell transplantation therapy has become the current hotspot.
OBJECTIVE: To study the therapeutic effects of huaman telomerase reverse transcriptase (hTERT)-modified bone marrow mesenchymal stem cells transplantation on diabetes mellitus in SD rats.
METHODS: Bone marrow mesenchymal stem cells were transfected with PLXSN carrying hTERT. Thirty-six male SD rats were randomly divided into control group (n=6), stem cell group (n=10), hTERT transfection group (n=10), diabetes mellitus group (n=10). Except the control group, the rats were injected with stretozotocin
(45 mg/kg) to make diabetes mellitus models. After modeling, rats in the stem cell group and hTERT transfection group were respectively intravenously injected with 1 mL of bone marrow mesenchymal stem cells (1.5×1010/L) and 1 mL of hTERT-modified bone marrow mesenchymal stem cells (1.5×1010/L).
RESULTS AND CONCLUSION: At 24 hours after modeling, the fasting blood-glucose level was significantly increased in the diabetes mellitus group, which was higher than the normal value (6.7 mmol/L). At 15 days after cell transplantation, the fasting blood-glucose levels were signficiantly decreased in the stem cell group and hTERT transfection group as compared with the diabetes mellitus group (P < 0.05), but the body mass of rats was increased in these two group (P < 0.05), especially in the hTERT transfection group. At 45 days after cell transplantation, the fasting blood-glucose level and body mass in the stem cell group and hTERT transfection group were close to those in the control group (P > 0.05), and moreover, the hTERT group had better outcomes than the stem cell group. Meanwhile, in the diabetes mellitus group, the fasting blood-glucose level was still at a higher level, and the body mass decreased continously. These findings suggest that hTERT-modified bone marrow mesenchymal stem cell transplantation is effective for treatment of diabetes mellitus in rats.

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: Bone Marrow, Mesenchymal Stem Cell Transplantation, Diabetes Mellitus, Hyperglycemia

CLC Number: