1999
Inhibition of protein phosphatase 1 decreases PTH secretion from isolated dispersed parathyroid cells
Matovcik L, Rhee S, Schaefer J, da Cruz e Silva E, Kinder B. Inhibition of protein phosphatase 1 decreases PTH secretion from isolated dispersed parathyroid cells. Molecular And Cellular Endocrinology 1999, 154: 171-177. PMID: 10509811, DOI: 10.1016/s0303-7207(98)00224-x.Peer-Reviewed Original ResearchConceptsParathyroid hormone secretionOkadaic acidPP-1PP-1 activityPTH secretionPlasma membrane markerHormone secretionParathyroid cellsProtein phosphataseBasal PTH secretionTarget of inhibitionSubcellular fractionationPermeabilized cellsBovine cellsMembrane markersSecretory granulesIntact bovineIntact humanSecretionSelective inhibitorCellsPhosphataseOkadaicInhibitionMarkers
1997
Reconstitution of calcium-regulated parathyroid hormone secretion from streptolysin-O-permeabilized parathyroid cells by guanosine 5'-O-(thio)triphosphate.
Matovcik L, Rhee S, Schaefer J, Kinder B. Reconstitution of calcium-regulated parathyroid hormone secretion from streptolysin-O-permeabilized parathyroid cells by guanosine 5'-O-(thio)triphosphate. Endocrinology 1997, 138: 1170-9. PMID: 9048624, DOI: 10.1210/endo.138.3.4971.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBacterial ProteinsCalciumCalcium-Calmodulin-Dependent Protein Kinase Type 2Calcium-Calmodulin-Dependent Protein KinasesCattleCell Membrane PermeabilityCyclic AMPCytosolEnergy MetabolismGuanine NucleotidesGuanosine 5'-O-(3-Thiotriphosphate)Osmolar ConcentrationParathyroid GlandsParathyroid HormoneParotid GlandStreptolysinsTime FactorsConceptsPTH secretionParathyroid cellsIntracellular Ca2Hormone secretionParathyroid hormone secretionGuanosine 5'Dose-dependent mannerCalcium/calmodulin-dependent protein kinase IIPTH releaseCalmodulin-dependent protein kinase IIExtracellular Ca2Physiological intracellular Ca2Protein kinase IISecretionAmbient Ca2Low Ca2Ca2GTPγSCellsInverse relationshipCytosolic cofactorsKinase IIAddition of GTPγSAbsence of GTPγSDependent regulationReconstitution of Calcium-Regulated Parathyroid Hormone Secretion from Streptolysin-O-Permeabilized Parathyroid Cells by Guanosine 5′-O-(Thio)Triphosphate*
Matovcik L, Rhee S, Schaefer J, Kinder B. Reconstitution of Calcium-Regulated Parathyroid Hormone Secretion from Streptolysin-O-Permeabilized Parathyroid Cells by Guanosine 5′-O-(Thio)Triphosphate*. Endocrinology 1997, 138: 1170-1179. DOI: 10.1210/en.138.3.1170.Peer-Reviewed Original ResearchIntracellular Ca2+ levelsPTH secretionParathyroid cellsCa2+ levelsPhysiological intracellular Ca2+ levelsHormone secretionRate of PTH secretionCalcium/calmodulin-dependent protein kinase IIIncreased PTH secretionInhibit PTH secretionParathyroid hormone secretionExtracellular Ca2+Regulation of hormone secretionCa2+ concentrationDose-dependent mannerProtein kinase IICa2+-dependent regulationAmbient Ca2+ concentrationStreptolysin OIn vitro model systemPTH releaseIntracellular Ca2SLO-permeabilized cellsKinase IISecretion