Quantitative and kinetic profile of Wnt/ß-catenin signaling components during human neural progenitor cell differentiation.
Cell Mol Biol Lett
; 16(4): 515-38, 2011 Dec.
Article
em En
| MEDLINE
| ID: mdl-21805133
ABSTRACT
ReNcell VM is an immortalized human neural progenitor cell line with the ability to differentiate in vitro into astrocytes and neurons, in which the Wnt/ß-catenin pathway is known to be involved. However, little is known about kinetic changes of this pathway in human neural progenitor cell differentiation. In the present study, we provide a quantitative profile of Wnt/ß-catenin pathway dynamics showing its spatio-temporal regulation during ReNcell VM cell differentiation. We show first that T-cell factor dependent transcription can be activated by stabilized ß-catenin. Furthermore, endogenous Wnt ligands, pathway receptors and signaling molecules are temporally controlled, demonstrating changes related to differentiation stages. During the first three hours of differentiation the signaling molecules LRP6, Dvl2 and ß-catenin are spatio-temporally regulated between distinct cellular compartments. From 24 h onward, components of the Wnt/ß-catenin pathway are strongly activated and regulated as shown by mRNA up-regulation of Wnt ligands (Wnt5a and Wnt7a), receptors including Frizzled-2, -3, -6, -7, and -9, and co-receptors, and target genes including Axin2. This detailed temporal profile of the Wnt/ß-catenin pathway is a first step to understand, control and to orientate, in vitro, human neural progenitor cell differentiation.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Diferenciação Celular
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Astrócitos
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Doenças Neurodegenerativas
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Transplante de Células-Tronco
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Neurogênese
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Células-Tronco Neurais
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Neurônios
Limite:
Humans
Idioma:
En
Revista:
Cell Mol Biol Lett
Assunto da revista:
BIOLOGIA MOLECULAR
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Alemanha