Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (6): 928-933.doi: 10.3969/j.issn.2095-4344.2015.06.019

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Mechanism of bone marrow mesenchymal stem cells transplantation in the treatment of limb ischemia

Bai Chao, Yang Kun, Li Xin-xi, Wang Yang, Tian Ye, Luo Jun   

  1. Department of Thyroid Surgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
  • Received:2015-01-10 Online:2015-02-05 Published:2015-02-05
  • Contact: Luo Jun, M.D., Chief physician, Department of Thyroid Surgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
  • About author:Bai Chao, Master, Attending physician, Department of Thyroid Surgery, First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, Xinjiang Uygur Autonomous Region, China
  • Supported by:

    the Natural Science Foundation of Xinjiang Uygur Autonomous Region, No. 2010211A48

Abstract:

BACKGROUND: Bone marrow stem cell transplantation has good achievements in the treatment of lower limb ischemic disease, but it mechanism of action is still unclear.
OBJECTIVE: To explore the mechanism of bone marrow mesenchymal stem cell transplantation for treatment of limb ischemia in Sprague-Dawley rats.
METHODS: The abdominal aorta, iliac arteries and lumbar arteries below the renal artery were ligated to prepare hind limb ischemia models in female Sprague-Dawley rats. Bone marrow mesenchymal stem cells from male Sprague-Dawley rats were amplified, purified and injected into the rectus femoris of the ischemic right hind limb in female rat models; in the control group, equal volume of normal saline was injected. After transplantation 2, 4, 6 weeks, hematoxylin-eosin staining of the right rectus femoris, immunohistochemical staining of vascular endothelial growth factor and SRY immunohistochemical staining were performed.
RESULTS AND CONCLUSION: After operation 2, 4, 6 weeks, the capillary count and the number of cells
positive for vascular endothelial growth factor in the transplantation group were significantly higher than those in the control group (P < 0.01). SRY immunohistochemical staining showed positive cells appeared at the capillary wall, which scattered in the muscle tissue in the transplantation group. These findings indicate that the local injection of bone marrow mesenchymal stem cells can improve the blood supply of ischemic hind limbs in Sprague-Dawley rats. Bone marrow mesenchymal stem cells as paracrine cells can prompt the neovascularization of ischemic limbs in rats by increasing the secretion of vascular endothelial growth factor.


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


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Key words: Bone Marrow, Mesenchymal Stem Cell Transplantation, Arterial Occlusive Diseases

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