2008
IL-6 downregulates transcription of NTPDase2 via specific promoter elements
Yu J, Lavoie E, Sheung N, Tremblay JJ, Sévigny J, Dranoff JA. IL-6 downregulates transcription of NTPDase2 via specific promoter elements. AJP Gastrointestinal And Liver Physiology 2008, 294: g748-g756. PMID: 18202114, PMCID: PMC5239663, DOI: 10.1152/ajpgi.00208.2007.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphatasesAnimalsBlotting, WesternCell DifferentiationCloning, MolecularCytokine Receptor gp130DNA, ComplementaryDown-RegulationElectrophoretic Mobility Shift AssayFibroblastsFluorescent Antibody TechniqueInterleukin-6LuciferasesMaleMicroscopy, ConfocalMutagenesis, Site-DirectedPromoter Regions, GeneticRatsRats, Sprague-DawleyResponse ElementsReverse Transcriptase Polymerase Chain ReactionConceptsBile ductular proliferationPortal fibroblastsIL-6Ductular proliferationBiliary cirrhosisIL-6 receptor gp80Alpha-smooth muscle actin expressionIL-6 responsePotential therapeutic approachMuscle actin expressionNTPDase2 expressionTime-dependent fashionBiliary fibrosisIL-6 receptor gp130Interleukin-6Therapeutic approachesResponse elementMyofibroblastic differentiationDiphosphohydrolase 2CirrhosisMRNA expressionActin expressionMinimal promoter constructProtein expressionIL-6 response element
2007
Molecular basis for calcium signaling in hepatic stellate cells
Kruglov EA, Correa PR, Arora G, Yu J, Nathanson MH, Dranoff JA. Molecular basis for calcium signaling in hepatic stellate cells. AJP Gastrointestinal And Liver Physiology 2007, 292: g975-g982. PMID: 17204544, DOI: 10.1152/ajpgi.00401.2006.Peer-Reviewed Original ResearchMeSH KeywordsActive Transport, Cell NucleusAdenosine TriphosphateAnimalsCalcium SignalingCalreticulinCell NucleusCell ShapeCell Surface ExtensionsCells, CulturedEndoplasmic ReticulumInositol 1,4,5-Trisphosphate ReceptorsLiverLiver CirrhosisMaleMicroscopy, ConfocalMicroscopy, VideoRatsRats, Sprague-DawleyReceptors, Purinergic P2RNA, MessengerTime FactorsConceptsHepatic stellate cellsCell extensionsLipid-storing cellsSubcellular organizationLiver fibrosisMolecular basisStellate cellsSubcellular signalingTrisphosphate receptorChronic liver failureProgressive liver fibrosisSufficient machineryExtracellular ATPMyofibroblastic transdifferentiationOrgan fibrosisLiver failureP2Y receptorsHealthy liverATPLocal controlCellsCritical stepLocal applicationImportant mediatorFibrosisPrevention of liver fibrosis by the purinoceptor antagonist pyridoxal-phosphate-6-azophenyl-2',4'-disulfonate (PPADS).
Dranoff JA, Kruglov EA, Abreu-Lanfranco O, Nguyen T, Arora G, Jain D. Prevention of liver fibrosis by the purinoceptor antagonist pyridoxal-phosphate-6-azophenyl-2',4'-disulfonate (PPADS). In Vivo 2007, 21: 957-65. PMID: 18210741.Peer-Reviewed Original ResearchConceptsHepatic stellate cellsBile duct ligationLiver fibrosisDuct ligationPurinergic receptorsCommon bile duct ligationEffect of PPADSPurinergic receptor inhibitorsDevelopment of cirrhosisHSC proliferationEffective pharmacologic treatmentExperimental liver fibrosisAnnexin V flow cytometryEffect of suraminSirius red stainQuantitative RT-PCRPharmacologic treatmentReceptor inhibitorsPPADSStellate cellsLiver sectionsFibrosisBromodeoxyuridine uptakePurinoceptor activationExperimental animals
2005
The Anti-apoptotic Protein Mcl-1 Inhibits Mitochondrial Ca2+ Signals*
Minagawa N, Kruglov EA, Dranoff JA, Robert ME, Gores GJ, Nathanson MH. The Anti-apoptotic Protein Mcl-1 Inhibits Mitochondrial Ca2+ Signals*. Journal Of Biological Chemistry 2005, 280: 33637-33644. PMID: 16027162, DOI: 10.1074/jbc.m503210200.Peer-Reviewed Original ResearchMeSH KeywordsAdenocarcinomaAniline CompoundsAntibodies, MonoclonalApoptosisBile Duct NeoplasmsCalcium SignalingCarbocyaninesCell LineCell Line, TumorCell NucleusFluorescent Antibody Technique, IndirectFluorescent DyesHeterocyclic Compounds, 3-RingHumansHydrazinesImmunohistochemistryMicroscopy, ConfocalMitochondriaModels, BiologicalMyeloid Cell Leukemia Sequence 1 ProteinNeoplasm ProteinsProto-Oncogene Proteins c-bcl-2Signal TransductionTissue DistributionXanthenesConceptsAnti-apoptotic proteinsMcl-1Mitochondrial Ca2Mcl-1 expressionApoptotic stimuliEndoplasmic reticulum Ca2Trisphosphate receptorCell growthNovel mechanismApoptosisMechanism of actionProteinExpressionDevelopment of neoplasiaCa2Reticulum Ca2CellsMitochondriaInositolRegulationPathwayMechanismSignalsReceptorsRegenerationPortal Fibroblasts Regulate the Proliferation of Bile Duct Epithelia via Expression of NTPDase2*
Jhandier MN, Kruglov EA, Lavoie É, Sévigny J, Dranoff JA. Portal Fibroblasts Regulate the Proliferation of Bile Duct Epithelia via Expression of NTPDase2*. Journal Of Biological Chemistry 2005, 280: 22986-22992. PMID: 15799977, DOI: 10.1074/jbc.m412371200.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphatasesAnimalsBile DuctsBromodeoxyuridineCell ProliferationCholangiocarcinomaCholestasisCoculture TechniquesDNA, ComplementaryEpithelial CellsFibroblastsHumansLiverMaleMicroscopy, ConfocalMicroscopy, FluorescenceModels, BiologicalRatsRats, Sprague-DawleyReverse Transcriptase Polymerase Chain ReactionRNA, Small InterferingSignal TransductionTransfectionConceptsBile ductular proliferationExpression of NTPDase2Portal fibroblastsDuctular proliferationBile duct epitheliumNTPDase2 expressionMz-ChA-1 cellsPortal myofibroblastsP2Y receptorsDuct epitheliumBile duct-ligated ratsCell proliferationDuct-ligated ratsReal-time reverse transcription PCRQuantitative real-time reverse transcription PCRHuman cholangiocarcinoma cellsNovel co-culture modelMz-ChA-1 human cholangiocarcinoma cellsNucleotidase apyraseP2Y activationCo-culture modelObstructive cholestasisReverse transcription-PCRPathologic alterationsEpithelial proliferation
2002
Isolation of Primary Rat Liver Fibroblasts
Kruglov EA, Jain D, Dranoff JA. Isolation of Primary Rat Liver Fibroblasts. Journal Of Investigative Medicine 2002, 50: 179. PMID: 12033282, DOI: 10.2310/6650.2002.33431.Peer-Reviewed Original ResearchConceptsLiver fibroblastsProcollagen-1 mRNAReverse transcription-polymerase chain reactionRat liverTranscription-polymerase chain reactionDistinct liver cell populationsSmooth muscle actinSmooth muscle cellsStandard cell culture methodsLiver cell populationsRole of fibroblastsVon Willebrand factorPolymerase chain reactionStellate cellsProcollagen 1Muscle actinCell markersMuscle cellsLiver physiologyAppearance of cellsWillebrand factorFibroblast morphologyChain reactionLiver researchCell populationsThe type II inositol 1,4,5-trisphosphate receptor can trigger Ca2+ waves in rat hepatocytes
Hirata K, Pusl T, O'Neill AF, Dranoff JA, Nathanson MH. The type II inositol 1,4,5-trisphosphate receptor can trigger Ca2+ waves in rat hepatocytes. Gastroenterology 2002, 122: 1088-1100. PMID: 11910359, DOI: 10.1053/gast.2002.32363.Peer-Reviewed Original ResearchAdenosine Diphosphate RiboseAnimalsCalciumCalcium ChannelsCalcium SignalingCyclic ADP-RiboseGene ExpressionHemostaticsHepatocytesImage Processing, Computer-AssistedInositol 1,4,5-Trisphosphate ReceptorsIsomerismMaleMicroscopy, ConfocalRatsRats, Sprague-DawleyReceptors, Cytoplasmic and NuclearSecond Messenger SystemsVasopressins
1999
Expression and subcellular localization of the ryanodine receptor in rat pancreatic acinar cells.
Leite MF, Dranoff JA, Gao L, Nathanson MH. Expression and subcellular localization of the ryanodine receptor in rat pancreatic acinar cells. Biochemical Journal 1999, 337 ( Pt 2): 305-9. PMID: 9882629, PMCID: PMC1219966, DOI: 10.1042/0264-6021:3370305.Peer-Reviewed Original ResearchConceptsPancreatic acinar cellsNon-excitable cell typesCell typesCell types resultsAcinar cellsNon-excitable cellsRyanodine receptorSubcellular localizationPolarized epitheliumReverse transcription-PCRRat pancreatic acinar cellsTrisphosphate receptorCo-ordinated releaseType 2 RyRExcitable cellsRelease pathwayTranscription-PCRPrincipal Ca2Release channelApical regionCytosolic Ca2CellsFundamental roleRyRsPropagation of Ca2