Article (Scientific journals)
Postnatal NG2 proteoglycan-expressing progenitor cells are intrinsically multipotent and generate functional neurons.
Belachew, Shibeshih; Chittajallu, Ramesh; Aguirre, Adan A. et al.
2003In Journal of Cell Biology, 161 (1), p. 169-86
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Keywords :
2',3'-Cyclic-Nucleotide Phosphodiesterases/genetics/metabolism; Action Potentials/genetics; Animals; Animals, Newborn; Antigens/genetics/metabolism; Astrocytes/cytology/metabolism; Cell Differentiation/genetics; Cells, Cultured; Dentate Gyrus/cytology/growth & development/metabolism; Hippocampus/cytology/growth & development/metabolism; Intermediate Filament Proteins/metabolism; Mice; Mice, Transgenic; Models, Animal; Multipotent Stem Cells/cytology/metabolism; Nerve Tissue Proteins; Neural Pathways/cytology/growth & development/metabolism; Neurons/cytology/metabolism; Oligodendroglia/cytology/metabolism; Phenotype; Promoter Regions, Genetic/genetics; Proteoglycans/genetics/metabolism; Recombinant Fusion Proteins/diagnostic use; Spheroids, Cellular/cytology/metabolism; gamma-Aminobutyric Acid/metabolism
Abstract :
[en] Neurogenesis is known to persist in the adult mammalian central nervous system (CNS). The identity of the cells that generate new neurons in the postnatal CNS has become a crucial but elusive issue. Using a transgenic mouse, we show that NG2 proteoglycan-positive progenitor cells that express the 2',3'-cyclic nucleotide 3'-phosphodiesterase gene display a multipotent phenotype in vitro and generate electrically excitable neurons, as well as astrocytes and oligodendrocytes. The fast kinetics and the high rate of multipotent fate of these NG2+ progenitors in vitro reflect an intrinsic property, rather than reprogramming. We demonstrate in the hippocampus in vivo that a sizeable fraction of postnatal NG2+ progenitor cells are proliferative precursors whose progeny appears to differentiate into GABAergic neurons capable of propagating action potentials and displaying functional synaptic inputs. These data show that at least a subpopulation of postnatal NG2-expressing cells are CNS multipotent precursors that may underlie adult hippocampal neurogenesis.
Disciplines :
Neurology
Author, co-author :
Belachew, Shibeshih ;  Université de Liège - ULiège > Département des sciences cliniques > Neurologie - CNCM/ Centre fac. de rech. en neurobiologie cell. et moléc.
Chittajallu, Ramesh
Aguirre, Adan A.
Yuan, Xiaoqing
Kirby, Martha
Anderson, Stacie
Gallo, Vittorio
Language :
English
Title :
Postnatal NG2 proteoglycan-expressing progenitor cells are intrinsically multipotent and generate functional neurons.
Publication date :
2003
Journal title :
Journal of Cell Biology
ISSN :
0021-9525
eISSN :
1540-8140
Publisher :
Rockefeller University Press, New York, United States - New York
Volume :
161
Issue :
1
Pages :
169-86
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 January 2009

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