0000000000149663

AUTHOR

Wolfgang Sommergruber

showing 2 related works from this author

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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Identification of HLA-A*0201-Restricted T Cell Epitopes Derived from the Novel Overexpressed Tumor Antigen Calcium-Activated Chloride Channel 2

2002

Abstract Vaccination against tumor Ags may become a promising treatment modality especially in cancer types where other therapeutic approaches fail. However, diversity of tumors requires that a multitude of Ags become available. Differential expression in normal vs cancerous tissues, both at the mRNA and the protein level, may identify Ag candidates. We have previously compared transcripts from squamous cell lung cancer and normal lung tissue using differential display analysis, and found a transcript that was overexpressed in malignant cells and was identical with the calcium-activated chloride channel 2 (CLCA2) gene. We have now selected HLA-A2-restricted peptides from CLCA2, and have gen…

T cellImmunologyAntigen presentationEpitopes T-LymphocyteStreptamerCD8-Positive T-LymphocytesBiologyEpitopeCell LineInterleukin 21AntigenAntigens NeoplasmChloride ChannelsHLA-A2 AntigenmedicineHumansImmunology and AllergyCytotoxic T cellAntigen-presenting cellAllelesAntigen PresentationHLA-A AntigensMolecular biologyCoculture TechniquesPeptide FragmentsPancreatic Neoplasmsmedicine.anatomical_structureCalciumOligopeptidesProtein BindingThe Journal of Immunology
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