Changes in angiogenesis-related factors in serum following autologous bone marrow cell implantation for severe limb ischemia
- 14 May 2008
- journal article
- Published by Informa Healthcare in Expert Opinion on Biological Therapy
- Vol. 8 (6), 705-712
- https://doi.org/10.1517/14712598.8.6.705
Abstract
Objective: Bone marrow mononuclear cell (BM-MNC) implantation (BMI) for critical severe limb ischemia especially for Buerger's disease shows excellent clinical results but the mechanism of this treatment is still unknown. In this study, we investigated the changes in serum levels of angiogenesis-related factors after BMI treatment. Research design/methods: Twelve patients whose BMI treatments were clinically very effective was selected out of ninteen cases, nine patients had Buerger's disease, two patients had arteriosclerosis obliterans and one had systemic sclerosis. Venous bood from femoral vein or brachial vein of the recipient limbs of these patients. Results: Adrenomedulin (AM), soluble vascular cell adhesion molecule-1 (sVCAM-1), and C-reactive protein (CRP) serum levels 24 h after BMI treatment were significantly increased compared with those before BMI treatment (p < 0.05). Vascular endothelial growth factor (VEGF) serum levels after BMI treatment significantly increased between 1 week and 3 months after BMI treatment (p < 0.05). Nitric oxide (NO) serum levels after BMI treatment increased significantly 2 weeks after BMI treatment (p < 0.05). There was no correlation between the numbers of implanted cells and serum levels of measured angiogenesis-related factors that were significantly increased after BMI treatment. Conclusion: It was concluded that the mechanism underlying BMI treatment consists of early and late phases. The early phase involves the direct action by implanted cells, and the late phase involves indirect paracrine action. In addition, it was considered that BMI treatment is effective when we implant a sufficient level of bone marrow (600 ml) to treat severe limb ischemia.Keywords
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