Potential of progenitors from postnatal cerebellar neuroepithelium and white matter: lineage specified vs. multipotent fate.
Progenitors that migrate through the white matter of the postnatal cerebellum give rise to interneurons, astrocytes, and oligodendrocytes. To investigate the lineage potential of progenitors from the neuroepithelium and the white matter, we performed an in vitro clonal analysis in the presence or absence of various growth factors. Clonal progeny of cells labeled with a green fluorescent protein (GFP)-expressing retrovirus was characterized using morphological features and lineage markers. The large majority of clones were homogeneous, containing astrocytes, oligodendrocytes, neurons, or hybrid progenitors-cells labeled with markers for astrocytes and oligodendrocytes. Heterogeneous clones consisted of astrocytes and oligodendrocytes, with only a few mixed glial-neuronal clones. The neuroepithelium contains a higher number of multipotent progenitors than the white matter, pointing to a lineage specification of most of the cerebellar progenitors before their migration to the white matter.
Milosevic
Ana
A
Division of Neuropathology, Department of Pathology, College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA. am829@columbia.edu
Goldman
James E
JE
D000818:Animals; D000831:Animals, Newborn; D001253:Astrocytes / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D015415:Biomarkers; D002454:Cell Differentiation / Q000187:drug effects / Q000235:genetics*; D019070:Cell Lineage / Q000187:drug effects / Q000235:genetics*; D002465:Cell Movement / Q000187:drug effects / Q000235:genetics; D002478:Cells, Cultured; D002531:Cerebellum / Q000166:cytology / Q000254:growth & development* / Q000378:metabolism; D002999:Clone Cells / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D004847:Epithelial Cells / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism; D005822:Genetic Vectors; D049452:Green Fluorescent Proteins; D006133:Growth Substances / Q000494:pharmacology; D008164:Luminescent Proteins; D039902:Multipotent Stem Cells / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism; D009413:Nerve Fibers, Myelinated / Q000187:drug effects / Q000378:metabolism / Q000648:ultrastructure; D009474:Neurons / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D009836:Oligodendroglia / Q000166:cytology / Q000187:drug effects / Q000378:metabolism; D051381:Rats; D013234:Stem Cells / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism
D015415:Biomarkers; D006133:Growth Substances; D008164:Luminescent Proteins; D049452:Green Fluorescent Proteins