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Long-term effect of autologous progenitor cell therapy to induce neo angiogenesis in patients with critical limb ischemia transplantated via intramuscular vs combined intramuscular and distal retrograde intra venous

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Stem Cell Discovery 2012年第4期2卷 155-162页

作者： Luis Padilla Juan Rodriguez-Trejo Ignacio Escotto Manuel López-Hernandez Mauricio González José De Diego Neftaly Rodrgiuez Jesús Tapia takeshi landero Carranza Pilar Hazel Olguin Juarez Horacio Mauricio Di Silvio Paul Mondragon-Teran Department of Experimental Surgery Microsurgery Unit Centro Medico Nacional “20 de Noviembre” ISSSTE Mexico City Mexico Surgery Department Faculty of Medicine Universidad Nacional Autonoma de Mexico Mexico City Mexico Angiology Vascular and Endovascular Surgery Unit Centro Medico Nacional “20 de Noviembre” ISSSTE Mexico City Mexico Haematology Unit Centro Medico Nacional “20 de Noviembre” ISSSTE Mexico City Mexico Bank of Blood Unit Centro Medico Nacional “20 de Noviembre” ISSSTE Mexico City Mexico Pediatric Hematology Unit Centro Medico Nacional '20 de Noviembre’ ISSSTE Mexico City Mexico Department of Research Hospital General de México OD Secretaria de Salud México Mexico City Mexico Department of Biomedical Research Centro Medico Nacional “20 de Noviembre” ISSSTE Mexico City Mexico

Critical limb ischemia is a medical condition that decreases blood flow and limb oxygen supply;this disease in its late stages of progression leads to only two possible options: either surgical bypass revascularization or limb amputation. We investigated a novel method using autologous transplantation of progenitor cells derived from mobilized peripheral blood bone marrow mononuclear cells to evaluate its long-term effect as a cell therapy to induce neo-angiogenesis and restore blood flow in the affected ischemic limbs. A total of 20 ischemic limbs from critical limb ischemia diagnosed patients, non candidates to surgical revascularization were transplanted with autologous progenitor cells by either intramuscular combined with intravenous (group A) or intramuscular (group B) procedure. Patients were monitored during 31 months. Treatment efficacy was evaluated according to the following parameters: ankle brachial index which increased at a range of 0.29-1.0 in group A and 0.40-0.90 in group B;pain-free walking distance which increased at a range of 50-600 m in group A and 50-300 m in group B;and blood perfusion (measured by Laser Doppler) which increased at a range of 48-299 in group A and 135-225 in group B. We achieved 90% treated ischemic limbs free of amputation in both transplanted groups. Results here described provide a safe, efficient and minimally invasive therapy with progenitor cells to induce angiogenesis and preserve limbs from amputation in CLI diagnosed patients.

关键词： Neo-Angiogenesis Cell therapy Critical Limb Ischemia Progenitor Cells Blood Perfusion

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