World Journal of Surgery

, Volume 31, Issue 9, pp 1872–1882

Reversal of Diabetes in Mice by Intrahepatic Injection of Bone-derived GFP-murine Mesenchymal Stem Cells Infected with the Recombinant Retrovirus-carrying Human Insulin Gene

Authors

  • Jian Xu
    • Department of General Surgerythe Affiliated Hospital, Nantong University
  • Yuhua Lu
    • Department of General Surgerythe Affiliated Hospital, Nantong University
  • Fei Ding
    • Key Laboratory of NeuroregenerationNantong University
  • Xi Zhan
    • Greenebaum Cancer Center, School of MedicineUniversity of Maryland
  • Mingyan Zhu
    • Department of General Surgerythe Affiliated Hospital, Nantong University
    • Department of General Surgerythe Affiliated Hospital, Nantong University
Article

DOI: 10.1007/s00268-007-9168-2

Cite this article as:
Xu, J., Lu, Y., Ding, F. et al. World J Surg (2007) 31: 1872. doi:10.1007/s00268-007-9168-2

Abstract

Background

The objective of this study was to assess the effect of intrahepatic injection of bone-derived green fluorescent protein (GFP)-transgenic murine mesenchymal stem cells (GFP-mMSCs) containing the human insulin(ins) gene in streptozotocin-induced diabetic mice.

Methods

GFP-mMSCs were isolated from the bone marrow of GFP transgenic mice, expanded, and transfected with a recombinant retrovirus MSCV carrying the human insulin gene. C57BL/6J mice were made diabetic by an intraperitoneal administration of 160 mg/kg streptozotocin (STZ), followed by intrahepatic injection of transfected GFP-mMSCs. The variations in body weight and the blood glucose and serum insulin levels were determined after cell transplantation. GFP-mMSCs survival and human insulin expression in liver tissues were examined by fluorescent microscopy and immunohistochemistry.

Results

The body weight in diabetic mice that received GFP-mMSCs harboring the human insulin gene was increased by 6% within 6 weeks after treatment, and the average blood glucose levels in these animals were 10.40 ± 2.80 mmol/l (day 7) and 6.50 ± 0.89 mmol/l (day 42), respectively, while the average values of blood glucose in diabetic animals without treatment were 26.80 ± 2.49 mmol/l (day 7) and 25.40 ± 4.10 mmol/l (day 42), showing a significant difference (p < 0.05). Moreover, secretion of human insulin of GFP-mMSCs in serum and animal liver was detected by radioimmunoassay (RIA) and immunohistochemistry (IHC).

Conclusions

Experimental diabetes could be relieved effectively for up to 6 weeks by intrahepatic transplantation of murine mesenchymal stem cells expressing human insulin. This study implies a novel approach of gene therapy for type I diabetes.

Copyright information

© Société Internationale de Chirurgie 2007