BACKGROUND: Transplanted bone marrow (BM) cells have been found to improve neurologic disease in central nervous system (CNS) injury models by generating neural cells or myelin-producing cells. The results in treated patients and animal models suggest that BM cells could potentially be used as a therapy for spinal cord injury (SCI) patients. METHODS: Nine patients with chronic complete SCI with American Spinal Injury Association (ASIA) Impairment Scale (ASIA) grade A were included in this study. They were treated with autologous BM-derived hematopoietic progenitor stem cell transplantation without any serious complications. All patients completed the protocols successfully. RESULTS: Three weeks after the operation all patients' movements and sensations were improved. All patients had ASIA grade B or C after the operation. DISCUSSION: We used autologous hematopoietic progenitor stem cells in order to avoid the problems associated with immunologic rejection and graft-versus-host (GvH) reactions, which are frequently caused by allografts. The advantage of this type of cell therapy is that it is not associated with carcinogenesis, which sometimes occurs with embryogenic stem cell therapy. To evaluate the patients we used neurologic impairment scales (ASIA scores), pre- and post-operative Somato Sensorial Evoked Potential (SSEP) assessments and pre- and post-operative Magnetic Resonance Imaging (MRI). All the data showed that BM-derived autologous stem cell therapy is effective and safe for the treatment of chronic SCI.
BACKGROUND: Transplanted bone marrow (BM) cells have been found to improve neurologic disease in central nervous system (CNS) injury models by generating neural cells or myelin-producing cells. The results in treated patients and animal models suggest that BM cells could potentially be used as a therapy for spinal cord injury (SCI) patients. METHODS: Nine patients with chronic complete SCI with American Spinal Injury Association (ASIA) Impairment Scale (ASIA) grade A were included in this study. They were treated with autologous BM-derived hematopoietic progenitor stem cell transplantation without any serious complications. All patients completed the protocols successfully. RESULTS: Three weeks after the operation all patients' movements and sensations were improved. All patients had ASIA grade B or C after the operation. DISCUSSION: We used autologous hematopoietic progenitor stem cells in order to avoid the problems associated with immunologic rejection and graft-versus-host (GvH) reactions, which are frequently caused by allografts. The advantage of this type of cell therapy is that it is not associated with carcinogenesis, which sometimes occurs with embryogenic stem cell therapy. To evaluate the patients we used neurologic impairment scales (ASIA scores), pre- and post-operative Somato Sensorial Evoked Potential (SSEP) assessments and pre- and post-operative Magnetic Resonance Imaging (MRI). All the data showed that BM-derived autologous stem cell therapy is effective and safe for the treatment of chronic SCI.
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