Priscilla Dannies, PhD
Professor Emeritus of PharmacologyDownloadHi-Res Photo
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Pharmacology
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Pharmacology
PO Box 208066, 333 Cedar Street
New Haven, CT 06520-8066
United States
About
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Professor Emeritus of Pharmacology
Appointments
Pharmacology
EmeritusPrimary
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Education & Training
- PhD
- Brandeis University (1971)
Research
Overview
A major unanswered question in endocrinology is how protein hormones are concentrated into secretory granules. We have developed a model system of rat pituitary tumor cells, GH4C1 cells, which have few secretory granules, but can be induced to accumulate many and to store prolactin. We have identified mutants of human prolactin and human growth hormones that can not be stored themselves, and that interfere with the storage or stability of wild-type hormones.
We are investigating why these mutants behave as they do by physical techniques in solution and biochemical methods in cells. Dominant-negative mutants for secretion of hormones have been found in people deficient in growth hormone, vasopressin and amylin. Understanding how mutants of prolactin and growth hormone interfere with synthesis and storage or normal hormones will lead to understanding the mechanisms of these eficiencies as well as answering a basic question in endocrinology.
We are investigating why these mutants behave as they do by physical techniques in solution and biochemical methods in cells. Dominant-negative mutants for secretion of hormones have been found in people deficient in growth hormone, vasopressin and amylin. Understanding how mutants of prolactin and growth hormone interfere with synthesis and storage or normal hormones will lead to understanding the mechanisms of these eficiencies as well as answering a basic question in endocrinology.
Medical Subject Headings (MeSH)
Endocrinology; Pharmacology; Prolactin; Vasopressins
Research at a Glance
Yale Co-Authors
Frequent collaborators of Priscilla Dannies's published research.
Publications Timeline
A big-picture view of Priscilla Dannies's research output by year.
Research Interests
Research topics Priscilla Dannies is interested in exploring.
Yong-Lian Zhu, MD
Barbara Kinder, MD
Elias Lolis, PhD
Gary Rudnick, PhD
Michael Hodsdon, MD/PhD
110Publications
3,020Citations
Prolactin
Vasopressins
Publications
2010
Anti-tumor effects of adenovirus containing human growth hormone sequences in a mouse model of human ovarian cancer
Zhu Y, Fariña JB, Meshack S, Santoveña A, Patel S, Oliva A, Llabrés M, Hodsdon ME, Booth CJ, Dannies PS. Anti-tumor effects of adenovirus containing human growth hormone sequences in a mouse model of human ovarian cancer. Endocrine 2010, 37: 430-439. PMID: 20960164, DOI: 10.1007/s12020-010-9333-5.Peer-Reviewed Original ResearchCitationsMeSH Keywords and ConceptsConceptsHuman ovarian cancerOvarian cancerPeritoneal cavityMouse modelTumor cell injectionImmunodeficient SCID miceGrowth hormone releaseHuman ovarian cancer cellsAnti-tumor effectsOvarian cancer cellsReplication-deficient adenovirusLower survival rateLiver metastasesMedian survivalControl miceLung metastasesIntraperitoneal injectionPeritoneal fibrosisLiver toxicitySCID miceHormone releaseHepatocellular changesSurvival rateCell injectionGrowth hormonePharmacokinetics analysis of sustained release hGH biodegradable implantable tablets using a mouse model of human ovarian cancer
Santoveña A, Fariña JB, Llabrés M, Zhu Y, Dannies P. Pharmacokinetics analysis of sustained release hGH biodegradable implantable tablets using a mouse model of human ovarian cancer. International Journal Of Pharmaceutics 2010, 388: 175-180. PMID: 20060456, DOI: 10.1016/j.ijpharm.2009.12.054.Peer-Reviewed Original ResearchCitationsMeSH Keywords and ConceptsMeSH KeywordsAnimalsCell ProliferationDelayed-Action PreparationsDisease Models, AnimalDrug CarriersDrug ImplantsDrug StabilityFemaleHuman Growth HormoneHumansLactic AcidLikelihood FunctionsMiceMice, SCIDOvarian NeoplasmsPolyglycolic AcidPolylactic Acid-Polyglycolic Acid CopolymerSurvival RateTabletsTime FactorsConceptsSerum levelsSurvival timeMouse modelOvarian cancer mouse modelHormone serum levelsImmunodeficient female micePopulation pharmacokinetic modelHuman ovarian cancer cellsHuman ovarian cancerCancer mouse modelEffect of hGHOvarian cancer cellsFemale miceOvarian cancerHormone releaseOrbital vesselsTumoral cell proliferationPeritoneal cavityPharmacokinetic analysisHigh doseHormone loadSustained release devicesPharmacokinetic modelCancer cellsPharmacokinetic study
2004
Aggregation and Lack of Secretion of Most Newly Synthesized Proinsulin in Non-β-Cell Lines
Zhu YL, Abdo A, Gesmonde JF, Zawalich KC, Zawalich W, Dannies PS. Aggregation and Lack of Secretion of Most Newly Synthesized Proinsulin in Non-β-Cell Lines. Endocrinology 2004, 145: 3840-3849. PMID: 15117881, DOI: 10.1210/en.2003-1512.Peer-Reviewed Original ResearchCitationsAltmetricIs there structural specificity in the reversible protein aggregates that are stored in secretory granules?
Keeler C, Hodsdon ME, Dannies PS. Is there structural specificity in the reversible protein aggregates that are stored in secretory granules? Journal Of Molecular Neuroscience 2004, 22: 43-49. PMID: 14742909, DOI: 10.1385/jmn:22:1-2:43.Peer-Reviewed Original ResearchCitationsMeSH Keywords and ConceptsConceptsSecretory granule proteinsMembrane proteinsGranule functionGranule proteinsAmino acid residuesSecretory granulesExcess membraneProtein aggregatesSecretory proteinsAcid residuesProteinStructural specificityResiduesSurface motifsGranulesAggregation processMembraneReversible aggregationSpecificityMotifNMR spectroscopyAggregationAggregatesCellsAccumulationPeptide Hormones, Segregation Mechanism
Dannies P. Peptide Hormones, Segregation Mechanism. 2004, 573-574. DOI: 10.1016/b0-12-475570-4/01000-3.Peer-Reviewed Original ResearchPeptide Hormones, Subcellular Structure
Dannies P. Peptide Hormones, Subcellular Structure. 2004, 575-578. DOI: 10.1016/b0-12-475570-4/01001-5.Peer-Reviewed Original ResearchPeptide Hormones, Regulated Secretion
Dannies P. Peptide Hormones, Regulated Secretion. 2004, 561-565. DOI: 10.1016/b0-12-475570-4/00998-7.Peer-Reviewed Original ResearchConceptsMembrane fusionSecretory granulesMembrane fusion processVesicular trafficSecretory pathwayProtein hormonesRegulated secretionPlasma membraneLarge dense-core vesiclesDense-core vesiclesVesiclesNeuroendocrine cellsExtracellular spaceCytosolic Ca2Release of hormonesPeptide hormonesMembraneGranulesCellsFusionYeastFusion processCytosolCa2Hormone
2003
Manipulating the Reversible Aggregation of Protein Hormones in Secretory Granules
Dannies P. Manipulating the Reversible Aggregation of Protein Hormones in Secretory Granules. BioDrugs 2003, 17: 315-324. PMID: 14498762, DOI: 10.2165/00063030-200317050-00002.Peer-Reviewed Original ResearchCitationsMeSH Keywords and ConceptsConceptsSecretory granule proteinsSecretory granule formationCell typesSecretory granulesGranule formationGranule proteinsDense-core secretory granulesSecretory cell typesFormation of aggregatesMembrane-permeable chelatorCorrect assemblyProtein aggregationProtein aggregatesProtein interfacesSecretory proteinsMonomeric proteinInsoluble aggregatesNative conformationProtein hormonesExact residuesMacromolecular crowdingProtein preparationsProteinHuman prolactinNeuroendocrine cellsThe Tertiary Structure and Backbone Dynamics of Human Prolactin
Keeler C, Dannies PS, Hodsdon ME. The Tertiary Structure and Backbone Dynamics of Human Prolactin. Journal Of Molecular Biology 2003, 328: 1105-1121. PMID: 12729745, DOI: 10.1016/s0022-2836(03)00367-x.Peer-Reviewed Original ResearchCitationsAltmetricMeSH Keywords and ConceptsConceptsFour-dimensional heteronuclear NMR spectroscopyTertiary structureBackbone dynamicsFour-helical bundleN-terminal loopSecretory granulesHeteronuclear NMR spectroscopyExtrapituitary prolactinNMR relaxation phenomenaThird helixFirst helixSecond helixGolgi complexFunctional bindingHematopoietic cytokinesBundle topologyDiscrete structural differencesFemale reproductive systemHuman prolactinProlactin receptorReversible oligomerizationHelixShort loopsReproductive systemGrowth factor
2002
New GH-1 gene mutations: expanding the spectrum of causes of isolated growth hormone deficiency.
Mullis PE, Deladoëy J, Dannies PS. New GH-1 gene mutations: expanding the spectrum of causes of isolated growth hormone deficiency. Journal Of Pediatric Endocrinology And Metabolism 2002, 15 Suppl 5: 1301-10. PMID: 12510984.Peer-Reviewed Original ResearchCitationsMeSH Keywords and ConceptsConceptsSecretory pathwayDNA/RNA levelIGHD type IIGH-1 gene alterationsCellular biological mechanismsBasis of inheritanceDistinct familial typesPhenotype resultsGH-1 gene mutationsMolecular analysisGenetic causeBiological mechanismsRNA levelsGene alterationsGene mutationsPathwaySame familyType IIFamilyMutationsInheritanceFamilial typePossible mechanismWide varietyMechanism
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Pharmacology
PO Box 208066, 333 Cedar Street
New Haven, CT 06520-8066
United States