Search results for "p65"

showing 7 items of 7 documents

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
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A new p65 isoform that bind the glucocorticoid hormone and is expressed in inflammation liver diseases and COVID-19

2021

AbstractInflammation is a physiological process whose deregulation causes some diseases including cancer. Nuclear Factor kB (NF-kB) is a family of ubiquitous and inducible transcription factors, in which the p65/p50 heterodimer is the most abundant complex, that play critical roles mainly in inflammation. Glucocorticoid Receptor (GR) is a ligand-activated transcription factor and acts as an anti-inflammatory agent and immunosuppressant. Thus, NF-kB and GR are physiological antagonists in the inflammation process. Here we show that in mice and humans there is a spliced variant of p65, named p65 iso5, which binds the corticosteroid hormone dexamethasone amplifying the effect of the glucocorti…

MaleCOVID-19.Molecular biologyGene ExpressionDexamethasoneHepatitisMiceGlucocorticoid receptorAdrenal Cortex HormonesProtein IsoformsNF-kBMultidisciplinaryLiver DiseasesQLiver NeoplasmsRNF-kappa BMiddle AgedLiverMedicineFemalemedicine.symptomliver diseaseTranscriptionNFKB P65iso5 inflammationGlucocorticoidmedicine.drugAdultGene isoformCarcinoma HepatocellularScienceImmunologyInflammationBiologyGlucocorticoid ReceptorArticleReceptors GlucocorticoidmedicineAnimalsHumansGlucocorticoidsTranscription factorDexamethasoneInflammationSARS-CoV-2p65 isoformTranscription Factor RelAWild typeCOVID-19Mice Inbred C57BLAlternative SplicingSettore BIO/18 - GeneticaGene Expression RegulationLeukocytes MononuclearCancer researchHormone
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Phospho-p38 MAPK expression in COPD patients and asthmatics and in challenged bronchial epithelium

2015

<b><i>Background:</i></b> The role of mitogen-activated protein kinases (MAPK) in regulating the inflammatory response in the airways of patients with chronic obstructive pulmonary disease (COPD) and asthmatic patients is unclear. <b><i>Objectives:</i></b> To investigate the expression of activated MAPK in lungs of COPD patients and in bronchial biopsies of asthmatic patients and to study MAPK expression in bronchial epithelial cells in response to oxidative and inflammatory stimuli. <b><i>Methods:</i></b> Immunohistochemical expression of phospho (p)-p38 MAPK, p-JNK1 and p-ERK1/2 was measured in bronchial mucosa in pat…

P38 MAPKMaleMAPK/ERK pathwayAsthma phenotypeSMOKERespiratory SystemMitogen-activated protein kinases; p65; Pathology of chronic obstructive pulmonary disease; Chronic obstructive pulmonary disease phenotypes; Asthma phenotypesPathology of chronic obstructive pulmonary diseasep38 Mitogen-Activated Protein KinasesChronic obstructive pulmonary disease phenotypePulmonary Disease Chronic ObstructiveOXIDATIVE STRESSMACROPHAGESRespiratory systemMitogen-activated protein kinasesChronic obstructive pulmonary disease phenotypesMitogen-activated protein kinases; p65; pathology of chronic obstructive pulmonary disease phenotypes; asthma phenotypesCOPDp65KinaseAsthma phenotypes; Chronic obstructive pulmonary disease phenotypes; Mitogen-activated protein kinases; p65; Pathology of chronic obstructive pulmonary disease; Pulmonary and Respiratory MedicineACTIVATED PROTEIN-KINASEInterleukinMiddle AgedImmunohistochemistrypathology of chronic obstructive pulmonary disease phenotypesAsthma phenotypesFemaleLife Sciences & BiomedicinePulmonary and Respiratory Medicinep38 mitogen-activated protein kinasesBlotting WesternINHIBITIONSocio-culturaleBronchiRespiratory MucosaOBSTRUCTIVE PULMONARY-DISEASE1102 Cardiovascular Medicine And HaematologyCell LinemedicineHumansLymphocyte CountInterleukin 8AgedAsthmaScience & Technologybusiness.industryInterleukin-8Transcription Factor RelAPATHWAYSMitogen-activated protein kinasemedicine.diseaseAsthmarespiratory tract diseasesSEVERITYCase-Control StudiesCELLSImmunologybusiness
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HSP60 activity on human bronchial epithelial cells

2017

HSP60 has been implicated in chronic inflammatory disease pathogenesis, including chronic obstructive pulmonary disease (COPD), but the mechanisms by which this chaperonin would act are poorly understood. A number of studies suggest a role for extracellular HSP60, since it can be secreted from cells and bind Toll-like receptors; however, the effects of this stimulation have never been extensively studied. We investigated the effects (pro- or anti-inflammatory) of HSP60 in human bronchial epithelial cells (16-HBE) alone and in comparison with oxidative, inflammatory, or bacterial challenges. 16-HBE cells were cultured for 1–4 h in the absence or presence of HSP60, H2O2, lipopolysaccharide (…

0301 basic medicinep38αSettore BIO/17 - IstologiaLipopolysaccharidep38 mitogen-activated protein kinasesImmunologyStimulationBronchip38 Mitogen-Activated Protein KinasesERK1Cell LinePathogenesisMitochondrial Proteins03 medical and health scienceschemistry.chemical_compound0302 clinical medicineOriginal Research ArticlesHumansImmunology and AllergyCOPDInterleukin 8Protein kinase AReceptor16-HBE; COPD; CREB1; ERK1; HSP60; IL-10; IL-8; JNK1; MyD88; NF-κB p65 subunit; TLR-4; p38αPharmacologyIL-8Settore BIO/16 - Anatomia UmanaInterleukin-8JNK1NF-κB p65 subunitEpithelial CellsTLR-4Chaperonin 60MyD88Interleukin-1016-HBEToll-Like Receptor 416-HBE; COPD; CREB1; ERK1; HSP60; IL-10; IL-8; JNK1; MyD88; NF-κB p65 subunit; p38α; TLR-4; Immunology and Allergy; Immunology; PharmacologyInterleukin 10030104 developmental biologychemistry030220 oncology & carcinogenesisIL-10Cancer researchCREB1NF-κB p65 subunitHSP60p38α
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Caracterización funcional de mutaciones oncogénicas de PI3K

2015

El cáncer es una enfermedad compleja originada por alteraciones genéticas en proto-oncogenes y/o supresores tumorales. El proto-oncogén PI3K se encuentra alterado en numerosos cánceres. La PI3K de clase I son quinasas, formadas por una subunidad catalítica (p110) y una reguladora (p85), que catalizan la conversión de PtdIns(4,5)P2 en PtdIns(3,4,5)P3 en las membranas celulares. Este último es un segundo mensajero que recluta a la quinasa de Ser/Thr AKT, la cual activa a numerosos efectores y desencadena una respuesta proliferativa y de supervivencia celular, por lo que mutaciones que causen la hiperactivación de esta ruta conllevan la transformación de células normales en células tumorales. …

p85tumorp65cáncerUNESCO::CIENCIAS DE LA VIDAPI3K:CIENCIAS DE LA VIDA [UNESCO]
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Obesity causes PGC‐1α deficiency in the pancreas leading to marked IL‐6 upregulation via NF‐κB in acute pancreatitis

2019

Obesity is associated with local and systemic complications in acute pancreatitis. PPARγ coactivator 1α (PGC-1α) is a transcriptional coactivator and master regulator of mitochondrial biogenesis that exhibits dysregulation in obese subjects. Our aims were: (1) to study PGC-1α levels in pancreas from lean or obese rats and mice with acute pancreatitis; and (2) to determine the role of PGC-1α in the inflammatory response during acute pancreatitis elucidating the signaling pathways regulated by PGC-1α. Lean and obese Zucker rats and lean and obese C57BL6 mice were used first; subsequently, wild-type and PGC-1α knockout (KO) mice with cerulein-induced pancreatitis were used to assess the inflam…

MaleTaurocholic Acid0301 basic medicinemedicine.medical_specialtyPGC-1αPathology and Forensic Medicine03 medical and health sciencesDownregulation and upregulationInternal medicineAnimalsMedicineObesityPhosphorylationInterleukin 6PancreasCeruletideMice KnockoutIL-6biologyp65Interleukin-6business.industryNF-kappa BTranscription Factor RelAmedicine.diseasePeroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alphaRats ZuckerUp-Regulation3. Good healthMice Inbred C57BLDisease Models Animal030104 developmental biologyEndocrinologymedicine.anatomical_structureMitochondrial biogenesisPancreatitisbiology.proteinPancreatitisAcute pancreatitisPPARGC1AbusinessPancreasCeruletideSignal TransductionThe Journal of Pathology
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Immune evasion proteins gpUS2 and gpUS11 of human cytomegalovirus incompletely protect infected cells from CD8 T cell recognition

2009

AbstractHuman cytomegalovirus (HCMV) encodes four glycoproteins, termed gpUS2, gpUS3, gpUS6 and gpUS11 that interfere with MHC class I biosynthesis and antigen presentation. Despite gpUS2–11 expression, however, HCMV infection is efficiently controlled by cytolytic CD8 T lymphocytes (CTL). To address the role of gpUS2 and gpUS11 in antigen presentation during viral infection, HCMV mutants were generated that expressed either gpUS2 or gpUS11 alone without coexpression of the three other proteins. Fibroblasts infected with these viruses showed reduced HLA-A2 and HLA-B7 surface expression. Surprisingly, however, CTL directed against the tegument protein pp65 and the regulatory IE1 protein stil…

Human cytomegalovirusvirusesAntigen presentationIE1CytomegalovirusCD8-Positive T-LymphocytesVirus ReplicationMajor histocompatibility complexpp65US2Immediate-Early ProteinsViral Matrix ProteinsHLA-B7 AntigenInterferon-gammaViral ProteinsImmune systemViral Envelope ProteinsVirologyHLA-A2 AntigenMHC class ImedicineHumansCytotoxic T cellCells CulturedAntigen PresentationbiologyImmune evasionRNA-Binding Proteinsvirus diseasesbiochemical phenomena metabolism and nutritionPhosphoproteinsmedicine.diseaseVirologyCTL*MutagenesisCTLCytomegalovirus InfectionsMHC class Ibiology.proteinUS11CD8Virology
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