Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (50): 8102-8107.doi: 10.3969/j.issn.2095-4344.2015.50.012

Previous Articles     Next Articles

Autologous peripheral blood mononuclear cell transplantation following cell mobilization increases CD4+CD25+ regulatory T cells in rats with thromboangiitis obliterans

Zhao Feng1, Deng Mo2   

  1. 1Department of Interventional Radiology, 2Department of Anesthesiology, Affiliated Hospital of Hebei University, Baoding 071000, Hebei Province, China
  • Received:2015-10-21 Online:2015-12-03 Published:2015-12-03
  • Contact: Deng Mo, Master, Attending physician, Department of Anesthesiology, Affiliated Hospital of Hebei University, Baoding 071000, Hebei Province, China
  • About author:Zhao Feng, Master, Attending physician, Department of Interventional Radiology, Affiliated Hospital of Hebei University, Baoding 071000, Hebei Province, China
  • Supported by:

    the Medical Science Project of Hebei Province, No. 20110515

Abstract:

BACKGROUND: Autologous peripheral blood stem cells have pluripotent characteristics, promote ischemic limb angiogenesis, improve and restore the blood supply to the affected limb.
OBJECTIVE: To observe the therapeutic effect of autologous peripheral blood mononuclear cell transplantation in rats with thromboangiitis obliterans.
METHODS: Twenty-four rats were randomized into control, model and granulocyte colony stimulating factor (G-CSF) groups. In the latter two groups, animal models of thromboangiitis obliterans were established by femoral arterial injection of sodium laurate. In the G-CSF group, rats were injected with recombinant human G-CSF for 5 successive days for peripheral blood mononuclear cell mobilization, and then underwent peripheral blood mononuclear cell transplantation at day 7. In the control and model groups, rats were given normal saline injection.
RESULTS AND CONCLUSION: After modeling, foot dorsum temperature and the percentage of CD4+CD25+ regulatory T cells decreased significantly in the model and G-CSF groups, and the area of leg ulcers was enlarged notably in these two groups. In the G-CSF group, the number of white cells and percentage of CD34+ cells to mononuclear cells were increased at 6 days after mobilization; the foot dorsum temperature and the percentage of CD4+CD25+ regulatory T cells increased significantly at 1 month after peripheral blood mononuclear cell transplantation, which were close to the normal values. These findings indicate that autologous 
peripheral blood mononuclear cell transplantation following cell mobilization increases the percentage of CD4+CD25+ regulatory T cells in rats with thromboangiitis obliterans, thus promoting relief of symptoms and ulcer healing. 

CLC Number: