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. 1986 May;83(9):3012–3016. doi: 10.1073/pnas.83.9.3012

Fibroblast growth factor promotes survival of dissociated hippocampal neurons and enhances neurite extension.

P Walicke, W M Cowan, N Ueno, A Baird, R Guillemin
PMCID: PMC323437  PMID: 3458259

Abstract

Basic fibroblast growth factor (FGF) has been found to increase neuronal survival and neurite extension in a highly purified population of fetal rat hippocampal neurons under well-defined serum-free cell culture conditions. In the presence of FGF, neuronal survival after 7 days in culture on a simple plastic substrate is increased 4-fold, to 54% of the initial population. Survival is increased 2-fold to 40% on polyornithine-laminin. When FGF was bound to plastic or heparin substrates, neurite outgrowth was significantly increased to lengths comparable to those seen with laminin; however, FGF produced no further increase in neurite outgrowth on laminin. Half-maximal survival was observed at FGF concentrations of about 15 pg/ml (1 pM); half-maximal process outgrowth occurred at about 375 pg/ml (20 pM). The responsive cells were identified as neurons by their labeling with tetanus toxin and by antibodies to neurofilaments and to the neuron-specific enolase. Astrocytes, identified by the presence of glial fibrillary acidic protein, constituted about 10% of cells present at 1 week both in the presence and in the absence of FGF. These results strongly suggest that, in addition to its known mitogenic effects on nonneuronal cells, FGF possesses neurotrophic activity for hippocampal neurons.

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These references are in PubMed. This may not be the complete list of references from this article.

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