title: Cyclic nucleotide action is mediated through adenosine receptors in damselfish motile iridophores.
abstract: Effects of cyclic nucleotides on motile iridophores were examined in the blue damselfish, Chrysiptera cyanea. All of the cyclic nucleotides tested, i.e. cAMP, 2',3'-cAMP and cGMP, accelerated the clearing response of the cells even at concentrations of 10(-5) or 10(-4) M. The action of these nucleotides was effectively antagonized by methylxanthines. These results suggest that the effect of cyclic nucleotides on damselfish iridophores is mediated by adenosine receptors in a similar fashion to the action of adenosine.
mesh_terms: D000818:Animals; D002856:Chromatophores / Q000187:drug effects* / Q000502:physiology; D005260:Female; D005399:Fishes / Q000502:physiology*; D008297:Male; D009712:Nucleotides, Cyclic / Q000494:pharmacology*; D011983:Receptors, Purinergic / Q000187:drug effects* / Q000502:physiology; D012880:Skin Pigmentation / Q000187:drug effects
chemical_list: D009712:Nucleotides, Cyclic; D011983:Receptors, Purinergic