Search results for " nuclear factor-κB"

showing 3 items of 3 documents

Epigenetic changes and nuclear factor-κB activation, but not microRNA-224, downregulate Raf-1 kinase inhibitor protein in triple-negative breast canc…

2015

Raf-1 kinase inhibitor protein (RKIP) is a tumor suppressor and metastasis inhibitor, which enhances drug-induced apoptosis of cancer cells. Downregulation of RKIP may be significant in the biology of highly aggressive and drug-resistant tumors, for example triple-negative breast cancers (TNBCs). Potential causes for the low levels of RKIP expressed by SUM 159 TNBC cells were investigated in the present study. Bisulphite modification, methylation specific-polymerase chain reaction (PCR) and a TransAM NF-κB assay were performed and the results suggested that various mechanisms, including methylation of the gene promoter, histone deacetylation and nuclear factor-κB (NF-κB) activation, but not…

Cancer Researchmedicine.drug_classCell growthtriple-negative breast cancer Raf-1 kinase inhibitor protein epigenetic changes microRNA-224 nuclear factor-κBHistone deacetylase inhibitorArticlesCell cycleBiologyMolecular biologyDemethylating agentchemistry.chemical_compoundTrichostatin AOncologychemistryCancer cellmedicineCancer researchGrowth inhibitionTranscription factormedicine.drug
researchProduct

Redox regulation of genome stability by effects on gene expression, epigenetic pathways and DNA damage/repair

2015

Reactive oxygen and nitrogen species (e.g. H2O2, nitric oxide) confer redox regulation of essential cellular signaling pathways such as cell differentiation, proliferation, migration and apoptosis. In addition, classical regulation of gene expression or activity, including gene transcription to RNA followed by translation to the protein level, by transcription factors (e.g. NF-κB, HIF-1α) and mRNA binding proteins (e.g. GAPDH, HuR) is subject to redox regulation. This review will give an update of recent discoveries in this field, and specifically highlight the impact of reactive oxygen and nitrogen species on DNA repair systems that contribute to genomic stability. Emphasis will be placed …

Genome instabilityRedox signalingRNA UntranslatedEpigenetic regulation of neurogenesisDNA RepairHuR mRNA-binding protein in the 3′-untranslated regionClinical BiochemistryHDAC histone deacetylaseReview ArticleAP-1 activator protein 1BiochemistryApe-1 apurinic/apyrimidinic endonuclease 1GPx-1 glutathione peroxidase-1Epigenesis GeneticHistonesTrx thioredoxinPHD prolylhydroxylaseBER base excision repairlcsh:QH301-705.5HO-1 heme oxygenase-1EpigenomicsGeneticsRegulation of gene expressionNox member of the NADPH oxidase familylcsh:R5-920JmjC Jumonji C domain-containing histone demethylasesHIF-1α hypoxia inducible factor-1α5-hmC 5-hydroxymethylcytosineddc:Cell biologyMMP matrix metalloproteinaseGrx glutaredoxinGAPDH glyceraldehyde-3-phosphate dehydrogenaseNrf2 nuclear factor erythroid related factor 2DNA methylationEpigeneticslcsh:Medicine (General)Oxidation-ReductionSignal Transduction5-mC 5-methylcytosineDNA repairDNA damageNF-κB nuclear factor-κBBiologyGenomic InstabilityRNS reactive nitrogen speciesROS reactive oxygen speciesNER nucleotide excision repairSOD superoxide dismutaseOxyR transcription factor (hydrogen peroxide-inducible genes activator)HumansEpigeneticsOrganic ChemistryPETN pentaerithrityl tetranitrateGene regulationOxidative StressDNMT DNA methyltransferaseGene Expression Regulationlcsh:Biology (General)AREs AU-rich elementsHAT histone acetyltransferaseKeap1 kelch-like ECH-associated protein 1BiomarkersCOPD chronic obstructive pulmonary disorderDNA DamageRedox Biology
researchProduct

Hypoxia Positively Regulates the Expression of pH-Sensing G-Protein–Coupled Receptor OGR1 (GPR68)

2016

Background & Aims: A novel family of proton-sensing G-proteinâcoupled receptors, including ovarian cancer G-proteinâcoupled receptor 1 (OGR1) (GPR68) has been identified to play a role in pH homeostasis. Hypoxia is known to change tissue pH as a result of anaerobic glucose metabolism through the stabilization of hypoxia-inducible factor-1α. We investigated how hypoxia regulates the expression of OGR1 in the intestinal mucosa and associated cells. Methods: OGR1 expression in murine tumors, human colonic tissue, and myeloid cells was determined by quantitative reverse-transcription polymerase chain reaction. The influence of hypoxia on OGR1 expression was studied in monocytes/macrophages and…

WT wild type0301 basic medicineMM6 MonoMac 6HV healthy volunteerSPARC secreted protein acidic and rich in cysteineNF-κB nuclear factor-κBInflammationBiologyIEC intestinal epithelial cell03 medical and health sciencesIntestinal mucosaTDAG8Ovarian Cancer G-Protein–Coupled ReceptormedicineOGR1 ovarian cancer G-protein–coupled receptor 1 (GPR68)IFN interferonlcsh:RC799-869ReceptorOriginal ResearchTh T-helperInflammationTNF tumor necrosis factorIBD inflammatory bowel diseaseHepatologyRT-qPCR quantitative reverse-transcription polymerase chain reactionAICAR 5-aminoimidazole-4-carboxamide-1-β-4-ribofuranosideTDAG8 T-cell death-associated gene 8 (GPR65)Inflammatory Bowel DiseaseGRP65GastroenterologyHypoxia (medical)Molecular biologyGPR G-protein–coupled receptormRNA messenger RNAIL interleukinChIP chromatin immunoprecipitationHIF hypoxia-inducible factorUC ulcerative colitis030104 developmental biologyHypoxia-inducible factorsCancer researchCD Crohn's diseaselcsh:Diseases of the digestive system. GastroenterologyTumor necrosis factor alphaFCS fetal calf serummedicine.symptomChromatin immunoprecipitationHomeostasisCellular and Molecular Gastroenterology and Hepatology
researchProduct