Search results for "Quitina"

showing 2 items of 52 documents

Liver specific deletion of CYLDexon7/8 induces severe biliary damage, fibrosis and increases hepatocarcinogenesis in mice

2012

Background & Aims CYLD is a tumor suppressor gene that is mutated in familial cylindromatosis, an autosomal dominant predisposition to tumors of skin appendages. Reduced CYLD expression has been observed in other tumor entities, including hepatocellular carcinoma. In the present study, we analyzed the role of CYLD in liver homeostasis and hepatocarcinogenesis in vivo . Methods Mice with liver-specific deletion of CYLDexon7/8 ( CYLD FF xAlbCre ) were generated. Liver tissues were histologically analyzed and oval cell activation was investigated. Hepatocarcinogenesis was induced by diethylnitrosamine/phenobarbital (DEN/PB). Microarray expression profiling of livers was performed in untreated …

medicine.medical_specialtyTumor suppressor geneBiliary Tract DiseasesIn Vitro TechniquesBiologymedicine.disease_causeDimethylnitrosamineDeubiquitinating Enzyme CYLDMiceRisk FactorsFibrosisInternal medicinemedicineAnimalsHomeostasisGenetic Predisposition to DiseaseHepatologyLiver NeoplasmsExonsTransforming growth factor betamedicine.diseaseFibrosisMice Mutant StrainsDeubiquitinating Enzyme CYLDMice Inbred C57BLGene expression profilingCysteine EndopeptidasesDisease Models AnimalPhenotypeEndocrinologyLiverPhenobarbitalHepatocellular carcinomaCancer researchbiology.proteinCell activationCarcinogenesisGene DeletionJournal of Hepatology
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The E3 Ubiquitin Ligase MID1 Catalyzes Ubiquitination and Cleavage of Fu

2014

Sonic Hedgehog (SHH)-GLI signalling plays an important role during embryogenesis and in tumorigenesis. The survival and growth of several types of cancer depend on autonomously activated SHH-GLI signalling. A protein complex containing the ubiquitin-ligase MID1 and protein phosphatase 2A (PP2A) regulates the nuclear localization and transcriptional activity of GLI3, a transcriptional effector molecule of SHH, in cancer cell lines with autonomously activated SHH signalling. However, the exact molecular mechanisms that mediate the interaction between MID1 and GLI3 remained unknown. Here, we show that MID1 catalyses the ubiquitination and proteasomal cleavage of the GLI3-regulator Fu. Our data…

metabolism [Microtubule Proteins]Ubiquitin-conjugating enzymeBiochemistrymetabolism [Protein Serine-Threonine Kinases]Ubiquitinmetabolism [Transcription Factors]Nuclear proteinSonic hedgehogbiologymetabolism [Protein-Serine-Threonine Kinases]Nuclear Proteinsrespiratory systemProtein-Serine-Threonine KinasesUbiquitin ligaseGene Expression Regulation NeoplasticGLI3 protein humanBiochemistryddc:540embryonic structuresMicrotubule Proteinsmetabolism [Hedgehog Proteins]Function and Dysfunction of the Nervous Systemmetabolism [Nuclear Proteins]Signal Transductionmetabolism [Kruppel-Like Transcription Factors]Proteasome Endopeptidase Complexanimal structuresSTK36 protein humanUbiquitin-Protein LigasesKruppel-Like Transcription FactorsNerve Tissue ProteinsProtein Serine-Threonine Kinaseschemistry [Ubiquitin-Protein Ligases]CatalysisZinc Finger Protein Gli3Cell Line TumorGLI3HumansHedgehog Proteinsmetabolism [Proteasome Endopeptidase Complex]metabolism [Cell Nucleus]Molecular Biologychemistry [Lysine]DNA PrimersCell Nucleusmetabolism [Nerve Tissue Proteins]UbiquitinLysineUbiquitinationCell BiologyProtein phosphatase 2chemistry [Ubiquitin]Proteasomebiology.proteinSHH protein humanhuman activitiesMid1 protein humanHeLa CellsTranscription FactorsJournal of Biological Chemistry
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