Abstract
An attempt was made to culture neural crest cells of the turtle embryo in vitro. Trunk neural tubes from the St. 9/10 embryos were explanted in culture dishes. The developmental potency of the turtle neural crest cells in vitro was shown to be essentially similar to that of avian neural crest cells, although they seem to be more sensitive to melanocyte-stimulating hormone (MSH) stimulation. We describe conditions under which explanted neural tube gives rise to neural crest cells that differentiate into neuronal cells and melanocytes. The potency of melanocyte differentiation was found to vary according to the concentration of fetal bovine serum (FBS, from 5 to 20%). Melanization of neural crest cells cultured in the medium containing FBS and alpha-MSH was more extensive than those cultured with FBS alone, combinations of FBS and chick embryo extract, or turtle embryo extract. These culture conditions seem to be useful for the study of the developmental potency of the neural crest cells as well as for investigating local environmental factors.
Published Version
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