Dopaminergic stimulation of cyclic AMP accumulation and parathyroid hormone release from dispersed bovine parathyroid cells
- 1 October 1977
- journal article
- research article
- Published by Proceedings of the National Academy of Sciences in Proceedings of the National Academy of Sciences
- Vol. 74 (10), 4210-4213
- https://doi.org/10.1073/pnas.74.10.4210
Abstract
The effects of dopaminergic agonists and antagonist were studied in dispersed bovine parathyroid cells. Dopaminergic agonists caused a transient 20 to 40-fold increase in cellular cyclic[c]AMP and a 2 to 3-fold increase in parathyroid hormone release. Dose-response relationships were similar for cAMP accumulation and hormone release, whether studied by increasing agonist concentration or by increasing concentration of antagonist with constant agonist. The effects on the dopamine receptor could be differentiated from those of the previously characterized .beta.-adrenergic receptor by specific inhibitors. These results appear to represent proof with a homogeneous cell population that dopaminergic receptors linked to adenylate cyclase can regulate a secretory process mediated by cAMP. This system should be useful in further studies on dopamine receptors and should provide a valid tool for determining interactions of radiolabeled ligands with such receptors.This publication has 16 references indexed in Scilit:
- Direct Identification of Beta-Adrenergic Receptors on Isolated Bovine Parathyroid Cells**Endocrinology, 1977
- Beta-Adrenergic Stimulation of Cyclic AMP Content and Parathyroid Hormone Release from Isolated Bovine Parathyroid Cells**Endocrinology, 1977
- Adenylate cyclase from synchronized neuroblastoma cells: responsiveness to prostaglandin E1, adenosine, and dopamine during the cell cycle.Proceedings of the National Academy of Sciences, 1977
- Preparation of Viable Isolated Bovine Parathyroid CellsEndocrinology, 1976
- Dopamine receptor binding in the corpus striatum of mammalian brain.Proceedings of the National Academy of Sciences, 1975
- Brain receptors for antipsychotic drugs and dopamine: direct binding assays.Proceedings of the National Academy of Sciences, 1975
- Dopamine Receptors in the BrainScience, 1975
- Femtomole sensitive radioimmunoassay for cyclic AMP and cyclic GMP after 2'0 acetylation by acetic anhydride in aqueous solution.1975
- Regulation of parathyroid hormone secretion by adenyl cyclaseBiochemical and Biophysical Research Communications, 1972
- Dopamine-Sensitive Adenyl Cyclase: Possible Role in Synaptic TransmissionScience, 1971