Search results for "Zinc Finger E-box-Binding Homeobox 1"

showing 3 items of 3 documents

The transcription factor ZEB1 (deltaEF1) promotes tumour cell dedifferentiation by repressing master regulators of epithelial polarity.

2007

Epithelial to mesenchymal transition (EMT) is implicated in the progression of primary tumours towards metastasis and is likely caused by a pathological activation of transcription factors regulating EMT in embryonic development. To analyse EMT-causing pathways in tumouri-genesis, we identified transcriptional targets of the E-cadherin repressor ZEB1 in invasive human cancer cells. We show that ZEB1 repressed multiple key determinants of epithelial differentiation and cell–cell adhesion, including the cell polarity genes Crumbs3, HUGL2 and Pals1-associated tight junction protein. ZEB1 associated with their endogenous promoters in vivo, and strongly repressed promotor activities in reporter …

AdultCancer ResearchChromatin ImmunoprecipitationCellular differentiationImmunoblottingDown-RegulationBreast NeoplasmsBiologymedicine.disease_causeEpitheliumArticleCell polarityGeneticsmedicineTumor Cells CulturedHumansNeoplasm InvasivenessEpithelial–mesenchymal transitionCell adhesionPromoter Regions GeneticMolecular BiologyTranscription factorEpithelial polarityAgedOligonucleotide Array Sequence AnalysisHomeodomain ProteinsMembrane GlycoproteinsReverse Transcriptase Polymerase Chain ReactionGene Expression ProfilingCell PolarityMembrane ProteinsZinc Finger E-box-Binding Homeobox 1Cell DifferentiationMiddle AgedCadherinsCytoskeletal ProteinsMicroscopy FluorescenceCancer cellColonic NeoplasmsCancer researchDisease ProgressionSnail Family Transcription FactorsCarcinogenesisNucleoside-Phosphate KinaseTranscription FactorsOncogene
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Correlation between EGFR Amplification and the Expression of MicroRNA-200c in Primary Glioblastoma Multiforme

2014

Extensive infiltration of the surrounding healthy brain tissue is a critical feature in glioblastoma. Several miRNAs have been related to gliomagenesis, some of them related with the EGFR pathway. We have evaluated whole-genome miRNA expression profiling associated with different EGFR amplification patterns, studied by fluorescence in situ hybridization in tissue microarrays, of 30 cases of primary glioblastoma multiforme, whose clinicopathological and immunohistochemical features have also been analyzed. MicroRNA-200c showed a very significant difference between tumors having or not EGFR amplification. This microRNA plays an important role in epithelial-mesenchymal transition, but its impl…

Malelcsh:MedicineGene expressionGene duplicationMedicine and Health Scienceslcsh:ScienceNeurological TumorsIn Situ Hybridization FluorescenceMultidisciplinaryTissue microarraymedicine.diagnostic_testBrain NeoplasmsCancer Risk FactorsGliomaMiddle AgedCadherinsErbB ReceptorsGene Expression Regulation NeoplasticNeurologyOncologyImmunohistochemistryFemaleDNA microarrayResearch ArticleSignal TransductionEpithelial-Mesenchymal TransitionGenetic Causes of CancerBiologyYoung AdultmicroRNAmedicineGeneticsCancer GeneticsHumansEpithelial–mesenchymal transitionAgedHomeodomain Proteinslcsh:RGene AmplificationBiology and Life SciencesCancers and NeoplasmsZinc Finger E-box-Binding Homeobox 1Molecular biologySurvival AnalysisMicroRNAsTissue Array AnalysisGenetics of DiseaseCancer researchlcsh:QGlioblastomaGlioblastoma MultiformeFluorescence in situ hybridizationTranscription FactorsPLoS ONE
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The Status of EGFR Modulates the Effect of miRNA-200c on ZEB1 Expression and Cell Migration in Glioblastoma Cells

2020

Migration of glioblastoma cells into surrounding tissue is one of the main features that makes this tumor incurable. We evaluated whole-genome miRNA expression profiling associated with different EGFR amplification patterns in 30 cases of primary glioblastoma. From the 64 miRNAs that showed differential expression between tumors with a high level of EGFR amplification and tumors without EGFR amplification, 40% were related with cell migration, being miR-200c the most differentially expressed between these two groups. We investigated the effect of miR-200c on ZEB1 expression and cell migration in an in vitro transfection model with a miR-200c mimic, a miR-200c inhibitor and siRNA targeting E…

cell migrationEGFR AmplificationApoptosisBiologyArticleCatalysismiR-200clcsh:ChemistryInorganic ChemistryDownregulation and upregulationCell MovementmicroRNABiomarkers TumorTumor Cells CulturedmedicineZEB1HumansGene silencingEGFR amplificationPhysical and Theoretical Chemistrylcsh:QH301-705.5Molecular BiologySpectroscopyCell ProliferationOrganic ChemistryglioblastomaGene AmplificationZinc Finger E-box-Binding Homeobox 1Cell migrationGeneral MedicineTransfectionPrognosismedicine.diseaseComputer Science ApplicationsErbB ReceptorsGene Expression Regulation NeoplasticMicroRNAslcsh:Biology (General)lcsh:QD1-999Cell cultureMutationCancer researchGlioblastomaInternational Journal of Molecular Sciences
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