2012
Advances in cholangiocyte immunobiology
Syal G, Fausther M, Dranoff JA. Advances in cholangiocyte immunobiology. AJP Gastrointestinal And Liver Physiology 2012, 303: g1077-g1086. PMID: 22961800, PMCID: PMC3517647, DOI: 10.1152/ajpgi.00227.2012.Peer-Reviewed Original ResearchConceptsImmune responseMajor histocompatibility complex antigensExtrahepatic bile ductAdaptive immune responsesHistocompatibility complex antigensHepatic stellate cellsBiliary infectionBiliary cirrhosisInflammatory mediatorsBiliary tractPortal fibroblastsBile ductProfessional APCsBiliary systemInflammatory modulatorsImmune cellsComplex antigensStellate cellsDuct epitheliumMyofibroblastic differentiationIntracellular signaling cascadesCholangiocytesFirst lineAdhesion moleculesCytokinesActivated hepatic stellate cells upregulate transcription of ecto-5′-nucleotidase/CD73 via specific SP1 and SMAD promoter elements
Fausther M, Sheung N, Saiman Y, Bansal MB, Dranoff JA. Activated hepatic stellate cells upregulate transcription of ecto-5′-nucleotidase/CD73 via specific SP1 and SMAD promoter elements. AJP Gastrointestinal And Liver Physiology 2012, 303: g904-g914. PMID: 22899823, PMCID: PMC3469697, DOI: 10.1152/ajpgi.00015.2012.Peer-Reviewed Original ResearchConceptsHepatic stellate cellsPortal fibroblastsLiver myofibroblastsLiver fibrosisStellate cellsMyofibroblastic hepatic stellate cellsQuiescent hepatic stellate cellsActivated hepatic stellate cellsCD73 gene expressionCD73-deficient miceRegulation of CD73Experimental liver fibrosisPromising molecular targetCD73 geneLiver diseaseAdenosine generationNovel cellular markerAntifibrotic therapyExperimental fibrosisFibrous septaRate-limiting enzymeCD73 proteinMyofibroblastic differentiationFibrotic liverAdenosine production
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
Transforming growth factor‐β and substrate stiffness regulate portal fibroblast activation in culture
Li Z, Dranoff JA, Chan EP, Uemura M, Sévigny J, Wells RG. Transforming growth factor‐β and substrate stiffness regulate portal fibroblast activation in culture. Hepatology 2007, 46: 1246-1256. PMID: 17625791, DOI: 10.1002/hep.21792.Peer-Reviewed Original ResearchConceptsHepatic stellate cellsPortal fibroblastsStellate cellsMyofibroblastic differentiationTGF-beta receptor kinase inhibitorGrowth factorAlpha-smooth muscle actinAlpha-smooth muscle actin expressionPlatelet-derived growth factorMuscle actin expressionReceptor kinase inhibitorBiliary fibrosisRat liver tissueFibroblast activationFibrogenic cellsMuscle actinLiver tissueMyofibroblastic phenotypeActin expressionFibroblast differentiationKinase inhibitorsDesminMyofibroblastsFibroblastsCells