2011
Tamoxifen Induces Rapid, Reversible Atrophy, and Metaplasia in Mouse Stomach
Huh WJ, Khurana SS, Geahlen JH, Kohli K, Waller RA, Mills JC. Tamoxifen Induces Rapid, Reversible Atrophy, and Metaplasia in Mouse Stomach. Gastroenterology 2011, 142: 21-24.e7. PMID: 22001866, PMCID: PMC3708546, DOI: 10.1053/j.gastro.2011.09.050.Peer-Reviewed Original ResearchMeSH KeywordsAdministration, OralAnimalsAtrophyChief Cells, GastricFemaleGene Expression RegulationInjections, IntraperitonealIntegrasesLac OperonMaleMetaplasiaMiceMice, Inbred BALB CMice, Inbred C57BLMice, TransgenicParietal Cells, GastricSelective Estrogen Receptor ModulatorsSpecies SpecificityTamoxifenTime FactorsConceptsSelective estrogen receptor modulatorsParietal cellsBody weight doseEstrogen receptor modulatorsTamoxifen side effectsAcid secretion inhibitionZymogenic chief cellsReversible atrophyWeight doseGastric toxicityIntraperitoneal administrationReceptor modulatorsNormal miceSide effectsSecretion inhibitionGastric parietal cellsChief cellsMouse stomachTamoxifenMetaplasiaMultiple strainsToxicityCellsPatientsAtrophy
2010
XBP1 Controls Maturation of Gastric Zymogenic Cells by Induction of MIST1 and Expansion of the Rough Endoplasmic Reticulum
Huh WJ, Esen E, Geahlen JH, Bredemeyer AJ, Lee A, Shi G, Konieczny SF, Glimcher LH, Mills JC. XBP1 Controls Maturation of Gastric Zymogenic Cells by Induction of MIST1 and Expansion of the Rough Endoplasmic Reticulum. Gastroenterology 2010, 139: 2038-2049. PMID: 20816838, PMCID: PMC2997137, DOI: 10.1053/j.gastro.2010.08.050.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBasic Helix-Loop-Helix Transcription FactorsCell DifferentiationCell LineChief Cells, GastricDNA-Binding ProteinsEndoplasmic Reticulum, RoughIntegrasesMiceMice, KnockoutMicroscopy, Electron, TransmissionPromoter Regions, GeneticRegulatory Factor X Transcription FactorsSecretory VesiclesStem CellsTranscription FactorsX-Box Binding Protein 1ConceptsEndoplasmic reticulumZymogenic cellsRough endoplasmic reticulumNC markersGastric zymogenic cellsTranscription factor XBP1Large secretory vesiclesLamellar rough endoplasmic reticulumAbsence of XBP1Transcription factor MIST1Cell shape abnormalitiesCre-loxP systemTranscriptional regulationChromatin immunoprecipitationTranscriptional activationSecretory vesiclesGastric cell linesMist1Neck cellsXBP1Cell typesImmunoblot analysisCell linesQuantitative reverse transcriptase-polymerase chain reactionMIST1 expressionInducible activation of Cre recombinase in adult mice causes gastric epithelial atrophy, metaplasia, and regenerative changes in the absence of “floxed” alleles
Huh WJ, Mysorekar IU, Mills JC. Inducible activation of Cre recombinase in adult mice causes gastric epithelial atrophy, metaplasia, and regenerative changes in the absence of “floxed” alleles. AJP Gastrointestinal And Liver Physiology 2010, 299: g368-g380. PMID: 20413717, PMCID: PMC3774481, DOI: 10.1152/ajpgi.00021.2010.Peer-Reviewed Original ResearchConceptsInduction of CreGastric epithelial stem cellsSpasmolytic polypeptide-expressing metaplasiaFoci of hyperplasiaSubset of miceTdT-mediated dUTP nick end labelingRegenerative capacityDUTP nick end labelingNick end labelingStem cellsAntral polypsDNA damage markerChicken actin promoterEpithelial atrophyStandard dosesGastric bodyPositive apoptosisEpithelial stem cellsComplete healingProfound atrophyGastric mucosaDamage markersAdult miceLoxP-flanked allelesSevere injuries