XB-ART-28895
Exp Cell Biol
1986 Jan 01;542:106-11. doi: 10.1159/000163350.
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Cyclic AMP and cell differentiation in amphibian embryonic explants.
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Conflicting results have been published concerning the effects of cyclic nucleotides on amphibian cell differentiation. Here we report the effects of cyclic adenosine monophosphate (cAMP) and dibutyryl-cyclic adenosine monophosphate (db-cAMP) on isolated explants from late blastulae of Ambystoma mexicanum and Xenopus laevis. Both cAMP and db-cAMP (10(-4)-10(-9) M) promote 'neuralizing' differentiation in Ambystoma explants. Xenopus explants treated with the nucleotides (10(-4), 10(-6), 10(-8) M) LiCl or heparan sulphate only give rise to ciliated aggregates or dissociation. The results confirm observations that different amphibian species react in different ways to activating chemicals.
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Genes referenced: camp