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  • Title: Immunofluorescent localization of cyclic AMP in toad urinary bladder: possible intercellular transfer.
    Author: Goodman DB, Bloom FE, Battenberg ER, Rasmussen H, Davis WL.
    Journal: Science; 1975 Jun 06; 188(4192):1023-5. PubMed ID: 167437.
    Abstract:
    By use of an immunofluorescent cytochemical staining technique, adenosine 3',5'-monophosphate (cyclic AMP) has been localized in toad bladder epithelial cells. Within 2 minutes after addition of vasopressin, staining intensity increases in both mitochondria-rich and granular cells. This finding, taken together with the precise anatomical relation between these two epithelial cell types and the observation that after separation of the two cell types vasopressin stimulates cyclic AMP accumulation in only mitochondria-rich cells, suggests that cyclic AMP may be transferred from mitochrondria-rich to granular cells as part of the response of the toad urinary bladder to vasopressin.
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