title: Efficient serum-free derivation of oligodendrocyte precursors from neural stem cell-enriched cultures.
abstract: Oligodendrocytes derived in the laboratory from stem cells have been proposed as a treatment for acute and chronic injury to the central nervous system. Platelet-derived growth factor (PDGF) receptor alpha (PDGFRalpha) signaling is known to regulate oligodendrocyte precursor cell numbers both during development and adulthood. Here, we analyze the effects of PDGFRalpha signaling on central nervous system (CNS) stem cell-enriched cultures. We find that AC133 selection for CNS progenitors acutely isolated from the fetal cortex enriches for PDGF-AA-responsive cells. PDGF-AA treatment of fibroblast growth factor 2-expanded CNS stem cell-enriched cultures increases nestin(+) cell number, viability, proliferation, and glycolytic rate. We show that a brief exposure to PDGF-AA rapidly and efficiently permits the derivation of O4(+) oligodendrocyte-lineage cells from CNS stem cell-enriched cultures. The derivation of oligodendrocyte-lineage cells demonstrated here may support the effective use of stem cells in understanding fate choice mechanisms and the development of new therapies targeting this cell type.
authors.affiliation: Laboratory of Molecular Biology, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland, USA.
authors.forename: Rajesh C
authors.initials: RC
authors.lastname: Rao
authors.forename: Justin
authors.initials: J
authors.lastname: Boyd
authors.forename: Raji
authors.initials: R
authors.lastname: Padmanabhan
authors.forename: Josh G
authors.initials: JG
authors.lastname: Chenoweth
authors.forename: Ronald D
authors.initials: RD
authors.lastname: McKay
mesh_terms: D000818:Animals; D002452:Cell Count; D002454:Cell Differentiation / Q000187:drug effects; D019070:Cell Lineage / Q000187:drug effects; D049109:Cell Proliferation / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D002478:Cells, Cultured; D002490:Central Nervous System / Q000166:cytology; D016895:Culture Media, Serum-Free; D007381:Intermediate Filament Proteins / Q000378:metabolism; D008024:Ligands; D051379:Mice; D009419:Nerve Tissue Proteins / Q000378:metabolism; D064231:Nestin; D009474:Neurons / Q000166:cytology* / Q000187:drug effects; D009836:Oligodendroglia / Q000166:cytology* / Q000187:drug effects; D010982:Platelet-Derived Growth Factor / Q000494:pharmacology; D020796:Receptor, Platelet-Derived Growth Factor alpha / Q000378:metabolism; D015398:Signal Transduction / Q000187:drug effects; D013234:Stem Cells / Q000166:cytology* / Q000187:drug effects
chemical_list: D016895:Culture Media, Serum-Free; D007381:Intermediate Filament Proteins; D008024:Ligands; D009419:Nerve Tissue Proteins; C577485:Nes protein, mouse; D064231:Nestin; D010982:Platelet-Derived Growth Factor; C075278:platelet-derived growth factor A; D020796:Receptor, Platelet-Derived Growth Factor alpha