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Milestones of neuronal development in the adult hippocampus
Ist Teil von
Trends in neurosciences (Regular ed.), 2004-08, Vol.27 (8), p.447-452
Ort / Verlag
Oxford: Elsevier Ltd
Erscheinungsjahr
2004
Quelle
MEDLINE
Beschreibungen/Notizen
Adult hippocampal neurogenesis originates from precursor cells in the adult dentate gyrus and results in new granule cell neurons. We propose a model of the development that takes place between these two fixed points and identify several developmental milestones. From a presumably bipotent radial-glia-like stem cell (type-1 cell) with astrocytic properties, development progresses over at least two stages of amplifying lineage-determined progenitor cells (type-2 and type-3 cells) to early postmitotic and to mature neurons. The selection process, during which new neurons are recruited into function, and other regulatory influences differentially affect the different stages of development.