2009
Transcriptional regulation of IL-6 in bile duct epithelia by extracellular ATP
Yu J, Sheung N, Soliman EM, Spirli C, Dranoff JA. Transcriptional regulation of IL-6 in bile duct epithelia by extracellular ATP. AJP Gastrointestinal And Liver Physiology 2009, 296: g563-g571. PMID: 19136380, PMCID: PMC2660176, DOI: 10.1152/ajpgi.90502.2008.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphateAnimalsAntibodiesBile DuctsCalciumCalcium SignalingCell Line, TransformedCell Line, TumorCyclic AMPEpithelial CellsExtracellular SpaceFibroblastsHumansImmunoblottingInterleukin-6MaleMutagenesis, Site-DirectedPromoter Regions, GeneticRatsRats, Sprague-DawleyReceptors, Purinergic P2Response ElementsRNA, MessengerSignal TransductionTranscriptional ActivationConceptsBile duct epitheliumIL-6IL-6 transcriptionDuct epitheliumLiver injuryCAMP response elementP2Y11 receptorInflammatory cytokines IL-6Extracellular ATPIL-6 upregulationUse of agonistsRat bile duct epitheliaCytokines IL-6IL-6 releaseIL-6 promoter activityIL-6 mRNAExtracellular ATP actsCalcium agonistP2Y receptorsPharmacological profileHepatic responseCalcium-dependent fashionExtracellular nucleotidesCytosolic calciumPurinergic signals
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 mediatorFibrosis
2004
Ectonucleotidase NTPDase2 Is Selectively Down-Regulated in Biliary Cirrhosis
Dranoff JA, Kruglov EA, Toure J, Braun N, Zimmermann H, Jain D, Knowles AF, Sévigny J. Ectonucleotidase NTPDase2 Is Selectively Down-Regulated in Biliary Cirrhosis. Journal Of Investigative Medicine 2004, 52: 475. PMID: 15651265, DOI: 10.1136/jim-52-07-42.Peer-Reviewed Original ResearchConceptsBile duct ligationNTPDase2 expressionPrimary biliary cirrhosisBiliary cirrhosisPortal fibroblastsReal-time polymerase chain reactionCCl4 administrationPolymerase chain reactionBiopsy specimensPortal areasExperimental ratsFibrous bandsNormal liverConfocal immunofluorescenceAlpha-smooth muscle actinExpression of NTPDase2Fibrogenic liver cellsHepatitis C cirrhosisLiver biopsy specimensFibrotic liver diseaseHuman liver biopsy specimensChain reactionNew therapeutic approachesHepatic stellate cellsCarbon tetrachloride administrationExpression of P2Y nucleotide receptors and ectonucleotidases in quiescent and activated rat hepatic stellate cells
Dranoff JA, Ogawa M, Kruglov EA, Gaça M, Sévigny J, Robson SC, Wells RG. Expression of P2Y nucleotide receptors and ectonucleotidases in quiescent and activated rat hepatic stellate cells. AJP Gastrointestinal And Liver Physiology 2004, 287: g417-g424. PMID: 14764443, PMCID: PMC5241161, DOI: 10.1152/ajpgi.00294.2003.Peer-Reviewed Original ResearchConceptsHepatic stellate cellsActivated hepatic stellate cellsQuiescent hepatic stellate cellsP2Y receptorsExtracellular nucleotidesP2Y subtypesStellate cellsMRNA expressionRT-PCRInhibitor suraminP2Y receptor subtypesReceptor subtype expressionExpression of mediatorsExpression of receptorsFunctional P2Y receptorsRat hepatic stellate cellsReal-time RT-PCRP2Y nucleotide receptorsEctonucleotidase expressionLiver fibrosisReceptor subtypesSubtype expressionEctonucleotidase activityExtracellular UDPFibrogenic cells
2002
The ecto‐nucleoside triphosphate diphosphohydrolase NTPDase2/CD39L1 is expressed in a novel functional compartment within the liver
Dranoff JA, Kruglov EA, Robson SC, Braun N, Zimmermann H, Sévigny J. The ecto‐nucleoside triphosphate diphosphohydrolase NTPDase2/CD39L1 is expressed in a novel functional compartment within the liver. Hepatology 2002, 36: 1135-1144. PMID: 12395323, DOI: 10.1053/jhep.2002.36823.Peer-Reviewed Original ResearchConceptsIntrahepatic bile ductsExtracellular nucleotidesBile ductDiverse biological functionsBlot analysisEcto-nucleoside triphosphate diphosphohydrolasesNTPDase2/CD39L1Portal fibroblastsNorthern blot analysisCellular compartmentsBiological functionsPotential regulatorConfocal immunofluorescenceWestern blot analysisHepatic blood flowBile duct epitheliumReverse transcription-polymerase chain reactionFunctional assaysTriphosphate diphosphohydrolasesImmunoelectron microscopyFunctional compartmentsHepatic central veinNucleotidesNTPDase1NTPDase2Isolation 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 populations