1990
Prolactin and insulin are targeted to the regulated pathway in GH4C1 cells, but their storage is differentially regulated.
Reaves B, Van Itallie C, Moore H, Dannies P. Prolactin and insulin are targeted to the regulated pathway in GH4C1 cells, but their storage is differentially regulated. Endocrinology 1990, 4: 1017-26. PMID: 2284004, DOI: 10.1210/mend-4-7-1017.Peer-Reviewed Original ResearchConceptsGH4C1 cellsEpidermal growth factorPRL synthesisGrowth factorPreferential increaseCombination of estradiolRegulated pathwayRat pituitary tumor cellsIntracellular PRLPituitary tumor cellsBasal releasePRL releaseIntracellular proinsulinSame time courseHormone treatmentPRL storageTumor cellsProinsulin immunoreactivityMRNA levelsPRLInsulinSame peak heightHormoneProinsulinTreatment
1989
Ca2+ Transients Induced by Thyrotropin-Releasing Hormone Rapidly Lose Their Ability to Cause Release of Prolactin
Law G, Pachter J, Dannies P. Ca2+ Transients Induced by Thyrotropin-Releasing Hormone Rapidly Lose Their Ability to Cause Release of Prolactin. Endocrinology 1989, 3: 539-546. PMID: 2501668, DOI: 10.1210/mend-3-3-539.Peer-Reviewed Original ResearchConceptsPulses of TRHPRL releasePRL secretionCytosolic free calcium concentrationPost-receptor stepsRat anterior pituitary glandThyrotropin-Releasing HormoneRelease of prolactinIndicator indo-1Anterior pituitary glandFree calcium concentrationRelationship of changesContinuous administrationSustained elevationNM TRHPituitary glandIndo-1TRHFluorescent Ca2Calcium concentrationRefractory stateTransient spikeSecretionMinRelease
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 phosphatesCa2
1986
Dopamine Inhibits Prolactin Release when Cyclic Adenosine 3′,5′-Monophosphate Levels Are Elevated*
DELBEKE P, SCAMMELL J, MARTINEZ-CAMPOS A, DANNIES P. Dopamine Inhibits Prolactin Release when Cyclic Adenosine 3′,5′-Monophosphate Levels Are Elevated*. Endocrinology 1986, 118: 1271-1277. PMID: 3004906, DOI: 10.1210/endo-118-4-1271.Peer-Reviewed Original ResearchConceptsPRL releaseIntracellular cAMP concentrationFemale Fischer 344 ratsCAMP levelsAnterior pituitary cellsCAMP concentrationFischer 344 ratsPRL accumulationPercentage of lactotrophsDopamine inhibitsPituitary tumorsContinuous Percoll density gradientsNM TRHPituitary cellsCAMP accumulationMicroM dopaminePercoll density gradientsBasal levelsMonophosphate levelsMin of incubationLactotrophsAdenylate cyclasePrimary culturesDopamineForskolin
1985
Stimulation of the Adenosine 3′,5′-Monophosphate and the Ca2+ Messenger Systems Together Reverse Dopaminergic Inhibition of Prolactin Release*
DELBEKE D, DANNIES P. Stimulation of the Adenosine 3′,5′-Monophosphate and the Ca2+ Messenger Systems Together Reverse Dopaminergic Inhibition of Prolactin Release*. Endocrinology 1985, 117: 439-446. PMID: 2990850, DOI: 10.1210/endo-117-2-439.Peer-Reviewed Original ResearchConceptsPRL releaseDopaminergic inhibitionAbsence of dopamineMessenger systemsRat anterior pituitary cellsPattern of releaseAnterior pituitary cellsCAMP messenger systemMin of preincubationBasal releaseProlactin releaseNM TRHPituitary cellsIntracellular Ca2Sustained phasePhorbol ester 12Cytosolic Ca2Intracellular cAMPTRHAdenylate cyclaseCAMP levelsDopamineSustained releaseLevel of releaseC-kinase activity
1984
Difference in Calcium Requirements for Forskolin-Induced Release of Prolactin from Normal Pituitary Cells and GH4C1 Cells in Culture*
DELBEKE D, SCAMMELI J, DANNIES P. Difference in Calcium Requirements for Forskolin-Induced Release of Prolactin from Normal Pituitary Cells and GH4C1 Cells in Culture*. Endocrinology 1984, 114: 1433-1440. PMID: 6323146, DOI: 10.1210/endo-114-4-1433.Peer-Reviewed Original ResearchConceptsGH4C1 cellsPRL releaseMale rat pituitary glandPrimary culturesNormal cellsNormal pituitary cellsPresence of D600Release of prolactinRat pituitary glandAddition of forskolinIntracellular cAMP concentrationPituitary tumorsFischer ratsPituitary cellsPituitary glandChannel inhibitorsTumor cellsTypes of cellsAdenylate cyclaseD600ForskolinCAMP concentrationCalcium requirementForskolin stimulationCells
1983
Veratridine and Ouabain Stimulate Calcium-Dependent Prolactin Release*
SCAMMELL J, DANNIES P. Veratridine and Ouabain Stimulate Calcium-Dependent Prolactin Release*. Endocrinology 1983, 113: 1228-1235. PMID: 6617570, DOI: 10.1210/endo-113-4-1228.Peer-Reviewed Original ResearchConceptsPRL releaseCalcium channel blocker D600Rat anterior pituitary cellsTetrodotoxin-insensitive mechanismCalcium channel blockersChannel blocker tetrodotoxinDopaminergic agonist bromocriptineEffect of veratridineAnterior pituitary cellsAction of veratridineChannel blocker D600Blocker tetrodotoxinAgonist bromocriptineProlactin releaseChannel blockersVeratridine effectPituitary cellsChannel activatorVeratridineGH4C1 cellsPrimary culturesOuabainNormal cellsStimulationPreincubation3COMPARISON OF THEEFFECTS OF HISTAMINE H2-RECEPTOR ANTAGONISTS ON PROLACTIN SECRETION IN THE RAT.
NETTI C, GUIDOBONO F, OLGIATI V, SIBILIA V, PECILE A, Dannies P. 3COMPARISON OF THEEFFECTS OF HISTAMINE H2-RECEPTOR ANTAGONISTS ON PROLACTIN SECRETION IN THE RAT. Endocrinology 1983, 113: 412-414. PMID: 6305638, DOI: 10.1210/endo-113-1-412.Peer-Reviewed Original ResearchConceptsPRL releaseHistamine H2-receptor antagonistsSignificant PRL releaseH2-receptor antagonistsCentral neural controlPRL-releasing activityHistamine H2 receptorsPRL secretionBlocking actionProlactin secretionH2 receptorsSingle bolusBlood samplesHigh doseBlocking potencyPrompt increaseBrain ventriclesNeural controlDrugsCimetidineRanitidineRatsStimulating effectPRLSecretion
1980
Action of Cholera Toxin on Hormone Synthesis and Release in GH Cells: Evidence that Adenosine 3′,5′-Monophosphate Does Not Mediate the Decrease in Growth Hormone Synthesis Caused by Thyrotropin-Releasing Hormone*
DANNIES P, TASHJIAN A. Action of Cholera Toxin on Hormone Synthesis and Release in GH Cells: Evidence that Adenosine 3′,5′-Monophosphate Does Not Mediate the Decrease in Growth Hormone Synthesis Caused by Thyrotropin-Releasing Hormone*. Endocrinology 1980, 106: 1532-1536. PMID: 6244936, DOI: 10.1210/endo-106-5-1532.Peer-Reviewed Original ResearchConceptsGH synthesisCholera toxinIntracellular cAMPWeeks of treatmentThyrotropin-releasing hormoneRelease of PRLHormone synthesisRat pituitary cellsIntracellular PRLGrowth hormone synthesisPRL releaseSimilar lag periodPituitary cellsGH cellsControl valuesPRL synthesisTRHPRLToxinClonal strainsLag periodReleaseCellsCAMPDecrease
1979
Antipsychotic Drugs Inhibit Prolactin Release from Rat Anterior Pituitary Cells in Culture by a Mechanism Not Involving the Dopamine Receptor*
WEST B, DANNIES P. Antipsychotic Drugs Inhibit Prolactin Release from Rat Anterior Pituitary Cells in Culture by a Mechanism Not Involving the Dopamine Receptor*. Endocrinology 1979, 104: 877-880. PMID: 436760, DOI: 10.1210/endo-104-4-877.Peer-Reviewed Original ResearchConceptsRat anterior pituitary cellsAnterior pituitary cellsGH releasePRL releaseControl valuesAntipsychotic drugsDopamine antagonistsDopamine receptorsPituitary cellsInhibition of PRLMicroM pimozideDopamine agonistsHormone releaseD-butaclamolInhibited secretionPRLBromocriptineAntagonistButaclamolInhibitionReceptorsDrugsReleaseCellsHaloperidol