1993
Rapid stimulation of rhodamine 123 efflux from multidrug-resistant KB cells by progesterone
Jancis E, Hong-xing C, Carbone R, Hochberg R, Dannies P. Rapid stimulation of rhodamine 123 efflux from multidrug-resistant KB cells by progesterone. Biochemical Pharmacology 1993, 46: 1613-1619. PMID: 7902090, DOI: 10.1016/0006-2952(93)90331-p.Peer-Reviewed Original ResearchConceptsRhodamine 123 effluxMultidrug resistance pumpRhodamine 123Efflux of daunomycinRapid stimulationMultidrug-resistant KB cellsAbsence of progesteroneNon-genomic mechanismsCause of retentionKB cellsMicroM progesteroneProgesteroneCarcinoma cellsPump activityActive steroidsMCF7 cellsStimulationIntracellular bindingEffluxCellsMitochondrial dyeDesoxycorticosteronePromegestoneVerapamilTestosterone
1992
Thyrotropin-releasing hormone-mediated Mn2+ entry in perifused rat anterior pituitary cells
Cui Z, Dannies P. Thyrotropin-releasing hormone-mediated Mn2+ entry in perifused rat anterior pituitary cells. Biochemical Journal 1992, 283: 507-513. PMID: 1575695, PMCID: PMC1131064, DOI: 10.1042/bj2830507.Peer-Reviewed Original ResearchConceptsAnterior pituitary cellsRat anterior pituitary cellsPituitary cellsMicroM dopaminePerifused anterior pituitary cellsIndo-1-loaded cellsReceptor-mediated Ca2Action of TRHContinuous TRH infusionTRH infusionCation entryIntracellular Ca2Indo-1TRHTumor promotorFree mediumG proteinsUnstimulated cellsCell typesDopamineCa2CellsLittle effectInsensitive wavelengthInfusion
1989
Ability of repetitive Ca2+ spikes to stimulate prolactin release is frequency dependent
Law G, Pachter J, Dannies P. Ability of repetitive Ca2+ spikes to stimulate prolactin release is frequency dependent. Biochemical And Biophysical Research Communications 1989, 158: 811-816. PMID: 2537637, DOI: 10.1016/0006-291x(89)92794-0.Peer-Reviewed Original ResearchConceptsProlactin releaseAnterior pituitary cellsRelease of prolactinSustained elevated levelsCytosolic free Ca2Amount of prolactinSerial declinePeak Ca2Prolactin secretionPerifusion systemPituitary cellsIndo-1Fluorescent Ca2Repetitive Ca2Transient increaseFree Ca2Elevated levelsProlactinMM KClCa2CellsCoincident increaseMinutesReleaseHigh frequency