Nerve growth factor is a mitogen for cultured chromaffin cells.
Journal: 1985/November - Nature
ISSN: 0028-0836
PUBMED: 4058573
Abstract:
Nerve growth factor (NGF) is essential for the survival and differentiation of a number of neural crest derivatives, including sympathetic and sensory neurones. While early studies suggested that NGF might also have a mitogenic effect on these neurones, subsequent work has favoured the interpretation that NGF promotes cell survival or differentiation rather than proliferation. We have addressed the issue of a mitogenic effect of NGF using adrenal chromaffin cells, which are endocrine cells derived from the neural crest, and are closely related to sympathetic neurones. Adrenal chromaffin cells respond to NGF in vitro by expressing neuronal traits. We now report that NGF elicits a mitotic response in cultured chromaffin cells from young rats, and that this response is blocked by an antiserum to 2.5S NGF. The chromaffin cells that divided in response to NGF can subsequently become neuronal in the continued presence of NGF.
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