1998
Maternal cholestasis does not affect the ontogenic pattern of expression of the Na+/Taurocholate cotransporting polypeptide (ntcp) in the fetal and neonatal rat liver
Arrese M, Trauner M, Ananthanarayanan M, Boyer J, Suchy F. Maternal cholestasis does not affect the ontogenic pattern of expression of the Na+/Taurocholate cotransporting polypeptide (ntcp) in the fetal and neonatal rat liver. Hepatology 1998, 28: 789-795. PMID: 9731574, DOI: 10.1002/hep.510280328.Peer-Reviewed Original ResearchConceptsBile duct ligationWeeks of ageBile acid transporterFetal lifeCommon bile duct ligationOntogenic patternMaternal obstructive cholestasisBile acid excretionMRNA levelsEffect of cholestasisSham-operated animalsSteady-state mRNA levelsFunction of NTCPAcid transportersNeonatal rat liverPostnatal time pointsDays of ageMaternal cholestasisBasolateral bile acid transportersPregnant ratsCholestatic ratsLiver weightObstructive cholestasisDuct ligationMC group
1996
Down-regulation of expression and function of the rat liver Na+/bile acid cotransporter in extrahepatic cholestasis
Gartung C, Ananthanarayanan M, Rahman M, Schuele S, Nundy S, Soroka C, Stolz A, Suchy F, Boyer J. Down-regulation of expression and function of the rat liver Na+/bile acid cotransporter in extrahepatic cholestasis. Gastroenterology 1996, 110: 199-209. PMID: 8536857, DOI: 10.1053/gast.1996.v110.pm8536857.Peer-Reviewed Original ResearchMeSH Keywords3-alpha-Hydroxysteroid Dehydrogenase (B-Specific)3-Hydroxysteroid DehydrogenasesAnimalsCarrier ProteinsCholestasis, ExtrahepaticCommon Bile DuctDown-RegulationHomeostasisLigationLiverMaleOrganic Anion Transporters, Sodium-DependentProteinsRatsRats, Sprague-DawleyRNA, MessengerSymportersTaurocholic AcidTissue DistributionTranscription, GeneticConceptsEcto-adenosine triphosphataseRegulation of expressionMolecular regulationPosttranscriptional regulationGene transcriptionSteady-state messenger RNA levelsTranscriptional activityAcid transportersProtective feedback mechanismComplementary DNAAcid cotransporterMessenger RNA levelsSodium-dependent taurocholateTranscriptionRNA levelsRegulationBile acid transporterMRNA levelsHepatic bile acid transportersCanalicular localizationTaurocholate uptakeAlpha-hydroxysteroid dehydrogenaseExpressionNtcp proteinTriphosphatase
1995
Vesicle targeting to the apical domain regulates bile excretory function in isolated rat hepatocyte couplets
Boyer J, Soroka C. Vesicle targeting to the apical domain regulates bile excretory function in isolated rat hepatocyte couplets. Gastroenterology 1995, 109: 1600-1611. PMID: 7557144, DOI: 10.1016/0016-5085(95)90649-5.Peer-Reviewed Original ResearchConceptsInsertion of vesiclesTranslocation of vesiclesMembrane transport activityVesicle trafficApical domainIsolated rat hepatocyte coupletsAcid transportersTransport activityNocodazoleRat hepatocyte coupletsVesiclesIndependent mechanismsEpithelial cellsBile acid transporterSite of residenceHepatocyte coupletsTransportersCanalicular membraneRat hepatocytesImmunocytochemical localizationCyclic monophosphateAdenosine triphosphataseBile excretory function
1994
Expression and characterization of a functional rat liver Na+ bile acid cotransport system in COS-7 cells
Boyer J, Ng O, Ananthanarayanan M, Hofmann A, Schteingart C, Hagenbuch B, Stieger B, Meier P. Expression and characterization of a functional rat liver Na+ bile acid cotransport system in COS-7 cells. American Journal Of Physiology 1994, 266: g382-g387. PMID: 8166278, DOI: 10.1152/ajpgi.1994.266.3.g382.Peer-Reviewed Original ResearchConceptsCOS-7 cellsCotransport systemBile acid transporterUrsodeoxycholic acidTaurochenodeoxycholic acidAcid cotransport systemTauroursodeoxycholic acidBile acidsRat hepatocytesAbsence of sodiumChenodeoxycholic acidCOS cellsEmpty plasmidPMAMneo vectorCholic acidBile acid cotransporterMicroM bilirubinRat liverEvidence of expressionCell linesAcid transportersPosttranslational factorsProgressive uptakeCotransporterAcid cotransporter
1993
Phylogenic and ontogenic expression of hepatocellular bile acid transport.
Boyer J, Hagenbuch B, Ananthanarayanan M, Suchy F, Stieger B, Meier P. Phylogenic and ontogenic expression of hepatocellular bile acid transport. Proceedings Of The National Academy Of Sciences Of The United States Of America 1993, 90: 435-438. PMID: 8421672, PMCID: PMC45677, DOI: 10.1073/pnas.90.2.435.Peer-Reviewed Original ResearchConceptsAcid transportMammalian speciesFull-length cDNA probeDependent bile acid transportMammalian fetal developmentAcid cotransport systemVertebrate evolutionBile acid transportOntogenic expressionLower vertebratesNonmammalian speciesPrior functional studiesHepatoma cell lineNorthern analysisAcid transportersDedifferentiated hepatocytesCDNA probeTransport systemAcid cotransporterFunctional studiesXenopus oocytesSmall skateSpeciesMRNACell lines