Comparison of angiogenic potency between mesenchymal stem cells and mononuclear cells in a rat model of hindlimb ischemia

被引:206
作者
Iwase, T
Nagaya, N
Fujii, T
Itoh, T
Murakami, S
Matsumoto, T
Kangawa, K
Kitamura, S
机构
[1] Natl Cardiovasc Ctr, Inst Res, Dept Regenerat Med & Tissue Engn, Suita, Osaka 5658565, Japan
[2] Univ Tokushima, Grad Sch Med, Dept Med & Bioregulatory Sci, Tokushima 770, Japan
[3] Natl Cardiovasc Ctr, Inst Res, Dept Cardiac Physiol, Suita, Osaka, Japan
[4] Natl Cardiovasc Ctr, Dept Cardiovasc Surg, Suita, Osaka, Japan
关键词
angiogenesis; apoptosis; cell therapy;
D O I
10.1016/j.cardiores.2005.02.006
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objective: Mesenchymal stem cells (MSC) are pluripotent cells that differentiate into a variety of cells including endothelial cells and vascular smooth muscle cells. Although transplantation of bone marrow-derived mononuclear cells (MNC) has already been applied for the treatment of critical limb ischemia, little information is available regarding comparison of the angiogenic potency between MSC and MNC. Accordingly, we injected equal numbers of MSC or MNC in a rat model of hindlimb ischemia and compared their therapeutic potential. Methods and results: Immediately after creating hindlimb ischemia, rats were randomized to receive MSC transplantation (MSC group), MNC transplantation (MNC group), or vehicle infusion (Control group). Three weeks after transplantation, the laser Doppler perfusion index was significantly higher in the MNC group than in the Control group (0.69 +/- 0.1 vs. 0.57 +/- 0.06, P < 0.01). Furthermore, there was a marked improvement in blood perfusion in the MSC group (0.81 +/- 0.08). Capillary density was highest in the MSC group. The number of transplanted cell-derived endothelial cells was higher in the MSC group than in the MNC group. Transplanted cell-derived vascular smooth muscle cells were detected only in the MSC group. In vitro, MSC were more tolerant to apoptotic stimulus (serum starvation and hypoxia) than MNC. Conclusions: MSC transplantation caused significantly greater improvement in hindlimb ischemia than MNC transplantation. Compared with MNC, MSC survived well under an ischemic environment, and differentiated into not only endothelial cells but also vascular smooth muscle cells. Thus, MSC transplantation may be a new therapeutic strategy for the treatment of severe peripheral vascular disease. (c) 2005 European Society of Cardiology. Published by Elsevier B.V. All rights reserved.
引用
收藏
页码:543 / 551
页数:9
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