Abstract
By optimizing the previously described strategy for obtention of spheres enriched in PSA-NCAM+ precursors, we prepared PSA-NCAM-immunoselected cell populations from cerebral hemispheres of neonatal MBP-LacZ transgenic mice. These cells expressed Nestin, exhibited clonal expansion potential and formed spheres, which were initially enriched in PSA-NCAM+ cells but became enriched in GD3+ oligodendrocyte progenitors after 1 week in B104 contionned medium. One month after their periventricular transplantation into the brain of wild-type and/or shiverer newborn mice, cells from PSA-NCAM+ spheres exhibited a higher rostral migration potential than cells from GD3+ spheres, and clearly contributed to myelination in the olfactory bulb. In shiverer hosts, both sphere populations generated oligodendrocytes with similar myelination potential. In addition PSA-NCAM+ sphere cells generated GFAP+ astrocytes and NeuN+ neurons, depending on their site of insertion. These results evidence the high plasticity of newborn PSA-NCAM+ neural precursors and suggest that they are promising tools for cell therapy of CNS diseases, including myelin disorders.
Copyright 2001 Academic Press.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Antigens, Differentiation / metabolism
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Astrocytes / cytology
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Astrocytes / metabolism
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Brain / cytology
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Brain / growth & development*
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Brain / metabolism
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Brain Tissue Transplantation / methods
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Cell Aggregation / genetics
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Cell Culture Techniques / methods
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Cell Differentiation / physiology*
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Cell Lineage / physiology*
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Cell Movement / physiology*
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Cells, Cultured / cytology
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Cells, Cultured / drug effects
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Cells, Cultured / metabolism
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Central Nervous System Diseases / surgery
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Clone Cells / cytology
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Clone Cells / drug effects
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Clone Cells / metabolism
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Culture Media / pharmacology
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Gangliosides / metabolism
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Gene Expression Regulation, Developmental / physiology
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Glial Fibrillary Acidic Protein / metabolism
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Graft Survival / physiology
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Intermediate Filament Proteins / metabolism
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Mice
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Mice, Transgenic
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Nerve Tissue Proteins*
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Nestin
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Neural Cell Adhesion Molecule L1*
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Neural Cell Adhesion Molecules / genetics
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Neural Cell Adhesion Molecules / metabolism*
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Neurons / cytology
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Neurons / metabolism
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Neurons / transplantation*
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Oligodendroglia / cytology
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Oligodendroglia / metabolism
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Sialic Acids / genetics
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Sialic Acids / metabolism*
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Stem Cell Transplantation*
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Stem Cells / cytology
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Stem Cells / metabolism
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Thalamus / cytology
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Thalamus / growth & development
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Thalamus / surgery
Substances
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Antigens, Differentiation
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Culture Media
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Gangliosides
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Glial Fibrillary Acidic Protein
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Intermediate Filament Proteins
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Nerve Tissue Proteins
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Nes protein, mouse
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Nestin
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Neural Cell Adhesion Molecule L1
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Neural Cell Adhesion Molecules
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Sialic Acids
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oligodendrocyte O antigen, mouse
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polysialyl neural cell adhesion molecule
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ganglioside, GD3