PMID- 15469951 OWN - NLM STAT- MEDLINE DCOM- 20050118 LR - 20161124 IS - 1460-2156 (Electronic) IS - 0006-8950 (Linking) VI - 127 IP - Pt 11 DP - 2004 Nov TI - Wild-type bone marrow cells ameliorate the phenotype of SOD1-G93A ALS mice and contribute to CNS, heart and skeletal muscle tissues. PG - 2518-32 AB - Amyotrophic lateral sclerosis (ALS) is a progressive, lethal neurodegenerative disease without any effective therapy. To evaluate the potential of wild-type bone marrow (BM)-derived stem cells to modify the ALS phenotype, we generated BM chimeric Cu/Zn superoxide dismutase (SOD1) mice by transplantation of BM cells derived from mice expressing green fluorescent protein (GFP) in all tissues and from Thy1-YFP mice that express a spectral variant of GFP (yellow fluorescent protein) in neurons only. In the recipient cerebral cortex, we observed rare GFP+ and YFP+ neurons, which were probably generated by cell fusion, as demonstrated by fluorescence in situ hybridization (FISH) analysis, suggesting that this phenomenon is not limited to Purkinje cells. GFP-positive microglial cells were extensively present in both the brain and spinal cord of the affected animals. Completely differentiated and immature GFP+ myofibres were also present in the heart and skeletal muscles of SOD1 mice, confirming that BM cells can participate in striated muscle tissue regeneration. Moreover, wild-type BM chimeric SOD1 mice showed a significantly delayed disease onset and an increased life span, probably due to a positive 'non-neuronal environmental' effect rather than to neuronogenesis. This improvement in SOD1-G93A mouse survival is comparable with that previously obtained using some safer pharmacological agents. BM transplantation-related complications in humans preclude its clinical application for ALS treatment. However, our data suggest that further studies aimed at improving the degree of tissue chimerism by BM-derived cells may provide valuable insights into strategies to slow ALS progression. FAU - Corti, Stefania AU - Corti S AD - Centro Dino Ferrari, Dipartimento di Scienze Neurologiche, Universita degli Studi di Milano, IRCCS Ospedale Maggiore Policlinico, Milano, Italy. FAU - Locatelli, Federica AU - Locatelli F FAU - Donadoni, Chiara AU - Donadoni C FAU - Guglieri, Michela AU - Guglieri M FAU - Papadimitriou, Dimitra AU - Papadimitriou D FAU - Strazzer, Sandra AU - Strazzer S FAU - Del Bo, Roberto AU - Del Bo R FAU - Comi, Giacomo P AU - Comi GP LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20041006 PL - England TA - Brain JT - Brain : a journal of neurology JID - 0372537 RN - EC 1.15.1.1 (SOD1 G93A protein) RN - EC 1.15.1.1 (Superoxide Dismutase) SB - IM MH - Amyotrophic Lateral Sclerosis/genetics/pathology/*therapy MH - Animals MH - *Bone Marrow Transplantation MH - Cell Differentiation MH - Cerebral Cortex/pathology MH - In Situ Hybridization, Fluorescence MH - Mice MH - Mice, Transgenic MH - Muscle, Skeletal/pathology MH - Myocardium/pathology MH - Neurons/pathology MH - Phenotype MH - Spinal Cord/pathology MH - Superoxide Dismutase/*genetics MH - Survival Analysis MH - Transplantation Chimera EDAT- 2004/10/08 09:00 MHDA- 2005/01/19 09:00 CRDT- 2004/10/08 09:00 PHST- 2004/10/08 09:00 [pubmed] PHST- 2005/01/19 09:00 [medline] PHST- 2004/10/08 09:00 [entrez] AID - awh273 [pii] AID - 10.1093/brain/awh273 [doi] PST - ppublish SO - Brain. 2004 Nov;127(Pt 11):2518-32. doi: 10.1093/brain/awh273. Epub 2004 Oct 6.