Mild cerebellar neurodegeneration of aged heterozygous PCD mice increases cell fusion of Purkinje and bone marrow-derived cells.
[EN] Bone marrow-derived cells have different plastic properties, especially regarding cell fusion, which increases with time and is prompted by tissue injury. Several recessive mutations, including Purkinje Cell Degeneration, affect the number of Purkinje cells in homozygosis; heterozygous young an...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2012 |
| País: | España |
| Institución: | Universidad de Salamanca (USAL) |
| Repositorio: | GREDOS. Repositorio Institucional de la Universidad de Salamanca |
| OAI Identifier: | oai:gredos.usal.es:10366/168842 |
| Acceso en línea: | http://hdl.handle.net/10366/168842 |
| Access Level: | acceso abierto |
| Palabra clave: | Cell fusion Cerebellum Neurorepair Purkinje cell degeneration Purkinje cells Transplant Bone Marrow Cells Nerve Degeneration Purkinje Cells Stem Cell Transplantation Cell Fusion Animals Neurodegenerative Diseases Heterozygote Aging Mice Stem Cells 3207.11 Neuropatología 2490 Neurociencias cerebelo enfermedades neurodegenerativas trasplante de células madre animales ratones células de la médula ósea células madre fusión celular envejecimiento degeneración nerviosa células de Purkinje heterocigoto |
| Sumario: | [EN] Bone marrow-derived cells have different plastic properties, especially regarding cell fusion, which increases with time and is prompted by tissue injury. Several recessive mutations, including Purkinje Cell Degeneration, affect the number of Purkinje cells in homozygosis; heterozygous young animals have an apparently normal phenotype but they undergo Purkinje cell loss as they age. Our findings demonstrate that heterozygous pcd mice undergo Purkinje cell loss at postnatal day 300, this slow but steadily progressing cell death starting sooner than has been reported previously and without massive reactive gliosis or inflammation. Here, transplantation of bone marrow stem cells was performed to assess the arrival of bone marrow-derived cells in the cerebellum in these heterozygous mice. Our results reveal that a higher number of cell fusion events occurs in heterozygous animals than in the controls, on days 150 and 300 postnatally. In sum, this study indicates that mild cell death promotes the fusion of bone marrow-derived cells with surviving Purkinje neurons. This phenomenon suggests new therapies for long-lasting neurodegenerative disorders. |
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