Basic fibroblast growth factor promotes the survival and development of mesencephalic neurons in culture
- 31 May 1989
- journal article
- research article
- Published by Elsevier BV in Developmental Biology
- Vol. 133 (1), 140-147
- https://doi.org/10.1016/0012-1606(89)90305-9
Abstract
Neuronotrophic effects of basic fibroblast growth factor (bFGF) have been reported for some central nervous system neurons. Here we report that also rat mesencephalic neurons are responsive to bFGF. bFGF produces a significant increase in the number of neurite-bearing cells, as well as in the degree of their fiber network. The present findings also provide the first evidence that bFGF can affect, in a concentration-dependent manner, at least two defined CNS neuronal populations, i.e., dopaminergic and gabaergic neurons. This effect was quantified by assessing the specific [3H]dopamine and [γ-14C]aminobutyric acid uptakes with time in culture. Stimulation of uptake was more pronounced for dopaminergic neurons, suggesting a relative specificity in the actions of bFGF. These effects of bFGF were completely blocked by affinity-purified polyclonal antibodies. The possibility that bFGF plays a key role in normal nervous system development or function is discussed.Keywords
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