Developmental effects of basic fibroblast growth factor and platelet-derived growth factor on glial cells in a three-dimensional cell culture system.

Détails

ID Serval
serval:BIB_498AF0B799A5
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Developmental effects of basic fibroblast growth factor and platelet-derived growth factor on glial cells in a three-dimensional cell culture system.
Périodique
Journal of Neuroimmunology
Auteur⸱e⸱s
Honegger P., Tenot-Sparti M.
ISSN
0165-5728 (Print)
ISSN-L
0165-5728
Statut éditorial
Publié
Date de publication
1992
Volume
40
Numéro
2-3
Pages
295-303
Langue
anglais
Résumé
In order to study peptide growth factor action in a three-dimensional cellular environment, aggregating cell cultures prepared from 15-day fetal rat telencephalon were grown in a chemically defined medium and treated during an early developmental stage with either bovine fibroblast growth factor (bFGF) or platelet-derived growth factor (PDGF homodimers AA and BB). A single dose (5-50 ng/ml) of either growth factor given to the cultures on day 3 greatly enhanced the developmental increase of the two glia-specific enzyme activities, 2',3'-cyclic nucleotide 3'-phosphohydrolase (CNP) and glutamine synthetase (GS), whereas it had relatively little effect on total protein and DNA content. Distinct patterns of dose-dependency were found for CNP and GS stimulation. At low concentrations of bFGF (0.5-5 ng/ml) and at all PDGF concentrations applied, the oligodendroglial marker enzyme CNP was the most affected. A relatively small but significant mitogenic effect was observed after treatment with PDGF, particularly at higher concentrations or after repetitive stimulation. The two PDGF homodimers AA and BB were similar in their biological effects and potency. The present results show that under histotypic conditions both growth factors, bFGF and PDGF, promote the maturation rather than the proliferation of immature oligodendrocytes and astrocytes.
Mots-clé
2',3'-Cyclic Nucleotide 3'-Phosphodiesterase, 2',3'-Cyclic-Nucleotide Phosphodiesterases/metabolism, Animals, Cell Aggregation, Cell Aging, Cells, Cultured, Cytological Techniques, DNA/biosynthesis, Dose-Response Relationship, Drug, Fibroblast Growth Factor 2/pharmacology, Glutamate-Ammonia Ligase/metabolism, Neuroglia/drug effects, Neuroglia/metabolism, Phosphoric Diester Hydrolases, Platelet-Derived Growth Factor/chemistry, Platelet-Derived Growth Factor/pharmacology, Rats
Pubmed
Web of science
Création de la notice
24/01/2008 14:12
Dernière modification de la notice
20/08/2019 14:56
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