1991
Ca2+ channel agonists enhance thyrotropin-releasing hormone-induced inositol phosphates and prolactin secretion
Pachter J, Law G, Dannies P. Ca2+ channel agonists enhance thyrotropin-releasing hormone-induced inositol phosphates and prolactin secretion. European Journal Of Pharmacology 1991, 195: 373-379. PMID: 1714395, DOI: 10.1016/0014-2999(91)90478-9.Peer-Reviewed Original ResearchMeSH Keywords3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl esterAnimalsCalciumCalcium Channel AgonistsCalcium Channel BlockersCalcium RadioisotopesDihydropyridinesFemaleIn Vitro TechniquesInositol PhosphatesNimodipinePerfusionProlactinPyridinesRatsRats, Inbred StrainsReceptors, PurinergicThyrotropin-Releasing HormoneConceptsBay K 8644Basal prolactin secretionProlactin secretionChannel activator Bay K 8644Potentiation of TRHChannel antagonist nimodipineAnterior pituitary cellsAnterior pituitary tumor cellsEnhancement of basalAccumulation of inositolSDZ 202Antagonist nimodipinePituitary tumor cellsInositol polyphosphate accumulationCGP 28392Dihydropyridine Ca2Hormone secretionChannel agonistDihydropyridine agonistPituitary cellsTRHTumor cellsSecretionGH4C1 cellsPrimary cultures
1990
Thapsigargin, but not caffeine, blocks the ability of thyrotropin-releasing hormone to release Ca2+ from an intracellular store in GH4C1 pituitary cells
Law G, Pachter J, Thastrup O, Hanley M, Dannies P. Thapsigargin, but not caffeine, blocks the ability of thyrotropin-releasing hormone to release Ca2+ from an intracellular store in GH4C1 pituitary cells. Biochemical Journal 1990, 267: 359-364. PMID: 1692207, PMCID: PMC1131296, DOI: 10.1042/bj2670359.Peer-Reviewed Original ResearchMeSH Keywords3-Pyridinecarboxylic acid, 1,4-dihydro-2,6-dimethyl-5-nitro-4-(2-(trifluoromethyl)phenyl)-, Methyl esterAnimalsCaffeineCalciumCell LineInositol PhosphatesKineticsNimodipinePituitary NeoplasmsPlants, MedicinalProlactinTerpenesThapsigarginThyrotropin-Releasing HormoneTumor Cells, CulturedConceptsThyrotropin-releasing hormoneGH4C1 pituitary cellsPituitary cellsIntracellular storesGH4C1 cellsAbility of TRHBay K 8644Cytosolic free Ca2Action of thapsigarginInsP3-sensitive storesSustained elevationChannel blockersReceptor levelsTRH stimulationExtracellular Ca2Intracellular Ca2Transient increaseFree Ca2ThapsigarginSubsequent spikesHormoneCell typesCa2CellsEfflux
1988
Dopamine has no Effect on Thyrotropin-Releasing Hormone Mobilization of Calcium from Intracellular Stores in Rat Anterior Pituitary Cells
Law G, Pachter J, Dannies P. Dopamine has no Effect on Thyrotropin-Releasing Hormone Mobilization of Calcium from Intracellular Stores in Rat Anterior Pituitary Cells. Endocrinology 1988, 2: 966-972. PMID: 3141796, DOI: 10.1210/mend-2-10-966.Peer-Reviewed Original ResearchConceptsRat anterior pituitary cellsAnterior pituitary cellsPRL secretionPituitary cellsIntracellular Ca2Intracellular storesLow Ca2MM Ca2Inhibition of releaseDopaminergic reductionSource of Ca2PRL releaseIntracellular calciumNM TRHPerifusion systemExtracellular Ca2MicroM dopamineTRHInternal Ca2DopamineEnriched populationMM KClSecretionInositol phosphatesCa2Bombesin stimulates inositol polyphosphate production in GH4C1 pituitary tumor cells: Comparison with TRH
Pachter J, Law G, Dannies P. Bombesin stimulates inositol polyphosphate production in GH4C1 pituitary tumor cells: Comparison with TRH. Biochemical And Biophysical Research Communications 1988, 154: 654-659. PMID: 3135808, DOI: 10.1016/0006-291x(88)90189-1.Peer-Reviewed Original Research