0000000000654909

AUTHOR

Elke Glasmacher

showing 2 related works from this author

Alternative Splice Forms of CYLD Mediate Ubiquitination of SMAD7 to Prevent TGFB Signaling and Promote Colitis

2018

Background & Aims The CYLD lysine 63 deubiquitinase gene (CYLD) encodes tumor suppressor protein that is mutated in familial cylindromatosus, and variants have been associated with Crohn disease (CD). Splice forms of CYLD that lack exons 7 and 8 regulate transcription factors and functions of immune cells. We examined the expression of splice forms of CYLD in colon tissues from patients with CD and their effects in mice. Methods We performed immunohistochemical analyses of colon tissues from patients with untreated CD and patients without inflammatory bowel diseases (controls). We obtained mice that expressed splice forms of CYLD (sCYLD mice) without or with SMAD7 (sCYLD/SMAD7 mice) from tr…

0301 basic medicineTranscription FactorBiopsyInbred C57BLTransgenicImmune RegulationSettore MED/12MiceRandom Allocation0302 clinical medicineCrohn DiseaseReference ValuesNeedleIntestinal Mucosaintegumentary systemChemistryBiopsy NeedleGastroenterologyT helper cellFlow CytometryPost-translational ModificationImmunohistochemistryDeubiquitinating Enzyme CYLDCysteine Endopeptidasesmedicine.anatomical_structure030211 gastroenterology & hepatologyTumor necrosis factor alphaSignal TransductionGenetically modified mouseRegulatory T cellTransgeneMice TransgenicSmad7 ProteinTransforming Growth Factor beta103 medical and health sciencesImmune systemmedicineAnimalsHumansCytokine SignalingHepatologyAnimalHEK 293 cellsUbiquitinationMolecular biologyMice Inbred C57BLDisease Models Animal030104 developmental biologyDisease ModelsCytokine Signaling; Immune Regulation; Post-translational Modification; Transcription Factor; Biopsy Needle; Crohn Disease; Cysteine Endopeptidases; Deubiquitinating Enzyme CYLD; Disease Models Animal; Flow Cytometry; Immunohistochemistry; Intestinal Mucosa; Mice Inbred C57BL; Mice Transgenic; Random Allocation; Reference Values; Signal Transduction; Smad7 Protein; Transforming Growth Factor beta1; UbiquitinationTransforming growth factorGastroenterology
researchProduct

Elevated levels of Bcl-3 inhibits Treg development and function resulting in spontaneous colitis

2017

Bcl-3 is an atypical NF-κB family member that regulates NF-κB-dependent gene expression in effector T cells, but a cell-intrinsic function in regulatory T (Treg) cells and colitis is not clear. Here we show that Bcl-3 expression levels in colonic T cells correlate with disease manifestation in patients with inflammatory bowel disease. Mice with T-cell-specific overexpression of Bcl-3 develop severe colitis that can be attributed to defective Treg cell development and function, leading to the infiltration of immune cells such as pro-inflammatory γδT cells, but not αβ T cells. In Treg cells, Bcl-3 associates directly with NF-κB p50 to inhibit DNA binding of p50/p50 and p50/p65 NF-κB dimers, t…

AdultMale0301 basic medicineP50ScienceGeneral Physics and AstronomyBiologyT-Lymphocytes RegulatoryInflammatory bowel diseaseArticleGeneral Biochemistry Genetics and Molecular BiologyYoung Adult03 medical and health sciences0302 clinical medicineImmune systemB-Cell Lymphoma 3 ProteinProto-Oncogene ProteinsGene expressionmedicineAnimalsHumansColitisMice KnockoutRegulation of gene expressionMultidisciplinaryEffectorHEK 293 cellsQNF-kappa BTranscription Factor RelANF-kappa B p50 SubunitGeneral ChemistryMiddle AgedColitismedicine.diseaseMice Inbred C57BLHEK293 Cells030104 developmental biologyGene Expression Regulation030220 oncology & carcinogenesisImmunologyFemaleProtein BindingTranscription FactorsNature Communications
researchProduct