Search results for "AP-1"

showing 10 items of 47 documents

Redox signaling in acute pancreatitis

2015

Acute pancreatitis is an inflammatory process of the pancreatic gland that eventually may lead to a severe systemic inflammatory response. A key event in pancreatic damage is the intracellular activation of NF-κB and zymogens, involving also calcium, cathepsins, pH disorders, autophagy, and cell death, particularly necrosis. This review focuses on the new role of redox signaling in acute pancreatitis. Oxidative stress and redox status are involved in the onset of acute pancreatitis and also in the development of the systemic inflammatory response, being glutathione depletion, xanthine oxidase activation, and thiol oxidation in proteins critical features of the disease in the pancreas. On th…

NecrosisGSH reduced glutathioneSTAT3 signal transducer and activator of transcription 3ERK extracellular signal-regulated kinasesClinical BiochemistryCCK cholecystokininTRAFs TNF receptor associated factorsReview ArticleIκB kinasePharmacologymedicine.disease_causeBiochemistrySHP small heterodimer partnerSTIM1 stromal interaction molecule 1chemistry.chemical_compoundHATs histone acetyltransferasesMedicineASK1GCL glutamate cysteine ligaseTNF-α tumor necrosis factor alphaIKK IκB kinaseNOS nitric oxide synthaseAcute inflammationHIF hypoxia inducible factorlcsh:QH301-705.5NF-κB nuclear factor kappa BDAMPs damage-associated molecular pattern moleculeslcsh:R5-920biologyGSSG oxidized glutathioneNF-kappa BNLRs nucleotide-binding oligomerization domain (NOD) like receptorsTRADD tumor necrosis factor receptor type 1-associated DEATH domain proteinTRPC3 transient receptor potential channel 3VEGF vascular endothelial growth factorGlutathioneTNFR tumor necrosis factor receptorHMGB1 high-mobility group Box 1 proteinIP3R inositol 145-trisphosphate receptor type 3VCAM-1 Vascular Cell adhesion protein 1Acute DiseaseJNK c-Jun N-terminal kinaseAcute pancreatitisTLRs toll-like receptorsmedicine.symptomlcsh:Medicine (General)Oxidation-ReductionAP-1 activator protein-1Signal TransductionmRNA messenger ribonucleic acidHMGB1ASC apoptosis-associated speck-like protein containing a carboxy-terminal CARDRNS reactive nitrogen speciesPTPs protein tyrosine phosphatasesROS reactive oxygen speciesNADH nicotinamide adenine dinucleotidepHe extracellular pHFAEE fatty acid ethyl estersAP acute pancreatitisHumansXanthine oxidaseCBP CREB-binding proteinRyR endoplasmic reticulum membrane ryanodine receptorsMDA malondialdehydeNO nitric oxideXO xanthine oxidaseASK1 apoptosis signal-regulating kinase-1business.industryOrganic ChemistryAutophagyNADPH nicotinamide adenine dinucleotide phosphateHDACs histone deacetylasesmedicine.diseaseCARS compensatory anti-inflammatory response syndromeXDH xanthine dehydrogenaseIL interleukinIκB inhibitor of kappa BAcute pancreatitisETC Electron transport chainPancreatitisMKPs MAPK phosphatasesSAP severe acute pancreatitischemistrylcsh:Biology (General)DTT dithiothreitolOxidative stressNAC N-acetyl cysteineImmunologybiology.proteinCalciumLysosomesReactive Oxygen SpeciesbusinessMAPK mitogen-activated protein kinaseOxidative stressERCP endoscopic retrograde cholangiopancreatographyRedox Biology
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The immunosuppressive activity of artemisinin‐type drugs towards inflammatory and autoimmune diseases

2021

The sesquiterpene lactone artemisinin from Artemisia annua L. is well established for malaria therapy, but its bioactivity spectrum is much broader. In this review, we give a comprehensive and timely overview of the literature regarding the immunosuppressive activity of artemisinin-type compounds toward inflammatory and autoimmune diseases. Numerous receptor-coupled signaling pathways are inhibited by artemisinins, including the receptors for interleukin-1 (IL-1), tumor necrosis factor-α (TNF-α), β3-integrin, or RANKL, toll-like receptors and growth factor receptors. Among the receptor-coupled signal transducers are extracellular signal-regulated protein kinase (ERK), c-Jun N-terminal kinas…

PharmacologyMAPK/ERK pathwaybiologybusiness.industryNF-kappa BArtemisinins570 Life sciencesAutoimmune DiseasesAP-1 transcription factorGrowth factor receptorRANKLDrug DiscoveryCancer researchbiology.proteinHumansMolecular MedicineMedicineSignal transductionbusinessProtein kinase AProtein kinase BImmunosuppressive AgentsPI3K/AKT/mTOR pathway570 BiowissenschaftenSignal TransductionMedicinal Research Reviews
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Piclamilast inhibits the pro-apoptotic and anti-proliferative responses of A549 cells exposed to H(2)O(2) via mechanisms involving AP-1 activation.

2012

Reactive oxygen species (ROS) are involved in the pathogenesis of many inflammatory diseases such as chronic obstructive pulmonary disease (COPD). They can alter the expression of genes involved in cellular damage by activating transcription factors, including the NF-κB and the activator protein 1 (AP-1). Phosphodiesterase type 4 (PDE4) inhibitors have anti-inflammatory and antioxidant effects, as described in in vivo and in vitro COPD models. This study analysed the effects of piclamilast, a selective PDE4 inhibitor, on modulating the global gene expression profile in A549 cells exposed to H(2)O(2).Changes in gene expression were analysed using high-density Affymetrix microarrays and valid…

Proto-Oncogene Proteins c-junPyridinesActivating transcription factorApoptosisBiologymedicine.disease_causeBiochemistryAntioxidantschemistry.chemical_compoundPulmonary Disease Chronic ObstructiveIn vivoAnnexinCell Line TumorGene expressionmedicineHumansRNA MessengerPhosphorylationCell ProliferationOligonucleotide Array Sequence AnalysisA549 cellGene Expression ProfilingNF-kappa BGeneral MedicineCell Cycle CheckpointsHydrogen PeroxideMolecular biologyTranscription Factor AP-1chemistryGene Expression RegulationAlveolar Epithelial CellsBenzamidesPhosphodiesterase 4 InhibitorsSignal transductionReactive Oxygen SpeciesPiclamilastOxidative stressSignal TransductionFree radical research
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Theileria parasites secrete a prolyl isomerase to maintain host leukocyte transformation

2015

Infectious agents develop intricate mechanisms to interact with host cell pathways and hijack their genetic and epigenetic machinery to change host cell phenotypic states. Among the Apicomplexa phylum of obligate intracellular parasites, which cause veterinary and human diseases, Theileria is the only genus that transforms its mammalian host cells. Theileria infection of bovine leukocytes induces proliferative and invasive phenotypes associated with activated signalling pathways, notably JNK and AP-1 (ref. 2). The transformed phenotypes are reversed by treatment with the theilericidal drug buparvaquone. We used comparative genomics to identify a homologue of the peptidyl-prolyl isomerase PI…

Proto-Oncogene Proteins c-jun[SDV]Life Sciences [q-bio]Drug ResistanceparasitesBiologyArticleCell LineHost-Parasite InteractionsmiR-155TheileriaTheileriaLeukocytesProlyl isomeraseAnimalsHumanscancerSecretionNIMA-Interacting Peptidylprolyl IsomeraseZebrafishComputingMilieux_MISCELLANEOUSPeptidylprolyl isomeraseSKP Cullin F-Box Protein LigasesMultidisciplinaryProtein StabilityGeneral CommentaryIntracellular parasiteUbiquitinationPeptidylprolyl Isomerasebiology.organism_classificationXenograft Model Antitumor AssaysMolecular biology3. Good healthCell biologyUbiquitin ligaseNIMA-Interacting Peptidylprolyl IsomeraseTranscription Factor AP-1Cell Transformation NeoplasticSchistosoma haematobiumPIN1biology.proteinMedicineCattleNaphthoquinonesSignal Transduction
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CD40 ligation protects bronchial epithelium against oxidant-induced caspase-independent cell death.

2006

KEYWORDS CLASSIFICATION: 7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide;Antigens,CD40;Apoptosis;Bronchi;cytology;Caspases;Cell Cycle;Cell Death;Cell Line,Transformed;Cell Survival;Cell Transformation,Viral;Cytoprotection;drug effects;Epithelial Cells;Humans;Italy;mechanisms of carcinogenesis;metabolism;Oxidants;pharmacology;physiology;Research;Simian virus 40;toxicity;Transcription Factor AP-1. CD40 and its ligand regulate pleiotropic biological responses, including cell proliferation, differentiation, and apoptosis. In many inflammatory lung diseases, tissue damage by environmental or endogenous oxidants plays a major role in disease pathogenesis. As the epithelial barrier is a major t…

Pulmonary and Respiratory MedicineNF-BProgrammed cell deathCell SurvivalClinical Biochemistry78-Dihydro-78-dihydroxybenzo(a)pyrene 910-oxideApoptosisBronchiSimian virus 40Inhibitor of apoptosisAntigens CD40CD40HumansCD40 AntigensMolecular BiologyMitosisCaspaseActivator protein–1Cell Line Transformedoxidant stressbiologyCell DeathCell growthCell CycleEpithelial CellsCell BiologyCell cycleCell Transformation ViralOxidantsapoptosiCell biologyTranscription Factor AP-1activator protein–1ApoptosisCytoprotectionCaspasesbiology.proteinNF- BApoptosis-inducing factorOxidant stress
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Age-dependent regulation of antioxidant genes by p38α MAPK in the liver

2018

p38α is a redox sensitive MAPK activated by pro-inflammatory cytokines and environmental, genotoxic and endoplasmic reticulum stresses. The aim of this work was to assess whether p38α controls the antioxidant defense in the liver, and if so, to elucidate the mechanism(s) involved and the age-related changes. For this purpose, we used liver-specific p38α-deficient mice at two different ages: young-mice (4 months-old) and old-mice (24 months-old). The liver of young p38α knock-out mice exhibited a decrease in GSH levels and an increase in GSSG/GSH ratio and malondialdehyde levels. However, old mice deficient in p38α had higher hepatic GSH levels and lower GSSG/GSH ratio than young p38α knock-…

ROS Reactive oxygen species;RSK1 Ribosomal S6 kinase10301 basic medicineMAPK/ERK pathwayAgingHPLC High-performance liquid chromatographyAntioxidantmedicine.medical_treatmentTBP TATA-binding proteinClinical BiochemistryDEN Diethyl nitrosamine;MKP-1 MAPK phosphatase-1IκB kinaseGCLc Glutamate cysteine ligase catalytic subunitp38 Mitogen-Activated Protein KinasesG6PDH Glucose-6-phosphate dehydrogenaseBiochemistryAntioxidantsMicechemistry.chemical_compoundSuperoxide Dismutase-1Akt Protein kinase B0302 clinical medicineNrf2 Nuclear factor erythroid 2-related factor-2IL InterleukinSOD1 Cu/Zn-superoxide dismutaselcsh:QH301-705.5Mice KnockoutMK2 MAP-activated protein kinase 2;PGC-1α Peroxisome proliferator-activated receptor gamma coactivator 1-alphachemistry.chemical_classificationlcsh:R5-920Trx ThioredoxinGlutathione DisulfideTNF-α Tumor necrosis factor-alphabiologyLPS Lipopolysaccharide;GSSG Oxidized glutathione;MEF Mouse embryonic fibroblastsNF-kappa BGstm1 Glutathione S-transferase mu 1CatalaseEndoplasmic Reticulum StressGlutathioneLiverGSH Reduced glutathione;Catalase030220 oncology & carcinogenesisJNK c-Jun N-terminal kinaselcsh:Medicine (General)Research Papermedicine.medical_specialtyNF-E2-Related Factor 2Glutamate-Cysteine LigaseMKK MAPK kinaseAP-1 Activator protein-1IKK IƙB KinaseGene Expression Regulation EnzymologicSuperoxide dismutase03 medical and health sciencesInternal medicineGlutamate cysteine ligaseEGFR Epidermal growth factor receptormedicineAnimalsNuclear factor ƙBAnd catalaseChIP Chromatin immunoprecipitation;Protein kinase BNF-ƙB Nuclear factor kappa BSuperoxide DismutaseSuperoxide dismutase 1Superoxide dismutase 2Organic ChemistryGlutathioneASK1 Apoptosis signal-regulating kinase 1ATF2 activating transcription factor 2;030104 developmental biologyEndocrinologyEnzymeHsp Heat shock proteinlcsh:Biology (General)chemistrybiology.proteinSOD2 Mn-superoxide dismutaseMAPK mitogen activated protein kinaseNEM N-ethyl maleimide;Redox Biology
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AP-1 Transcription Factor Serves as a Molecular Switch between Chlamydia pneumoniae Replication and Persistence

2015

ABSTRACT Chlamydia pneumoniae is a Gram-negative bacterium that causes acute or chronic respiratory infections. As obligate intracellular pathogens, chlamydiae efficiently manipulate host cell processes to ensure their intracellular development. Here we focused on the interaction of chlamydiae with the host cell transcription factor activator protein 1 (AP-1) and its consequence on chlamydial development. During Chlamydia pneumoniae infection, the expression and activity of AP-1 family proteins c-Jun, c-Fos, and ATF-2 were regulated in a time- and dose-dependent manner. We observed that the c-Jun protein and its phosphorylation level significantly increased during C. pneumoniae development.…

Small interfering RNAGene knockdownCellular Microbiology: Pathogen-Host Cell Molecular InteractionsTranscription GeneticImmunologyChlamydiaeGene Expression Regulation BacterialHep G2 CellsChlamydophila pneumoniaeBiologybiology.organism_classificationMicrobiologyBacterial LoadMicrobiologyTranscription Factor AP-1AP-1 transcription factorInfectious DiseasesTranscription (biology)Host-Pathogen InteractionsHepatocytesHumansPhosphorylationParasitologyTranscription factorIntracellularInfection and Immunity
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The role of NF-AT transcription factors in T cell activation and differentiation11We dedicate this review to Prof. Dr. Rigomar Rieger (Gatersleben), …

2000

AbstractThe family of genuine NF-AT transcription factors consists of four members (NF-AT1 [or NF-ATp], NF-AT2 [or NF-ATc], NF-AT3 and NF-AT4 [or NF-ATx]) which are characterized by a highly conserved DNA binding domain (is designated as Rel similarity domain) and a calcineurin binding domain. The binding of the Ca2+-dependent phosphatase calcineurin to this region controls the nuclear import and exit of NF-ATs. This review deals (1) with the structure of NF-AT proteins, (2) the DNA binding of NF-AT factors and their interaction with AP-1, (3) NF-AT target genes, (4) signalling pathways leading to NF-AT activation: the role of protein kinases and calcineurin, (5) the nuclear entry and exit …

T cell activationCellular differentiationT cell differentiationCell BiologyDNA-binding domainCell cycleBiologyInterleukinNFATC Transcription FactorsAP-1Molecular biologyCalcineurinCyclosporin AT cell differentiationNF-AT transcription factorNuclear proteinMolecular BiologyTranscription factorBiochimica et Biophysica Acta (BBA) - Molecular Cell Research
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Cloning and functional analyses of the mouse tapasin promoter

2003

The expression of tapasin is critical for an optimized MHC class I assembly and stable MHC class I surface expression. Thus, impaired MHC class I antigen expression of tumors can be attributable to tapasin downregulation. In order to understand the molecular mechanisms of deficient tapasin expression, the mouse tapasin promoter region and its 5'-flanking sequences were characterized. The mouse tapasin promoter lacks the TATA box and its transcription is initiated at multiple sites within a 51-nucleotide stretch. Sequence analyses revealed transcription factor binding motifs for NF-kappaB, GATA, E2F, p300, AP1, SP1 and IRF-1/2. Detailed analysis of deletion mutants and elimination of transcr…

TATA boxMolecular Sequence DataImmunologyImmunoglobulinsAntiportersInterferon-gammaMiceTapasinMHC class IGeneticsAnimalsCloning MolecularPromoter Regions GeneticE2FTranscription factorBase SequencebiologyNF-kappa BMembrane Transport ProteinsPromoterDNASequence Analysis DNATransporter associated with antigen processingMolecular biologyAP-1 transcription factorGene Expression Regulationbiology.proteinTranscription Initiation SiteImmunogenetics
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Enzymatically hydrolyzed low-density lipoprotein modulates inflammatory responses in endothelial cells

2009

SummaryThere is evidence that low-density lipoprotein (LDL) is modified by hydrolytic enzymes,and that the product (E-LDL) induces selective production of interleukin 8 (IL-8) in endothelial cells. Since nuclear factor-kappaB (NF-κB) is a major regulator of IL-8 transcription, we studied its activation in endothelial cells treated with E-LDL. Unexpectedly,the modified lipoprotein not only failed to activate NF-κB, but completely blocked its activation by tumour necrosis factor-alpha (TNF-α) in EA.hy926-cells, as assessed by electrophoretic mobility shift assays and immunofluorescence. Inhibition occurred upstream of NF-κB translocation, as inhibitor of NF-κB- (IκB)-phosphorylation was suppr…

Time FactorsProto-Oncogene Proteins c-junPyridinesmedicine.medical_treatmentFatty Acids NonesterifiedBiologyp38 Mitogen-Activated Protein KinasesCell Linechemistry.chemical_compoundNF-KappaB Inhibitor alphamedicineHumansTrypsinInterleukin 8PhosphorylationPromoter Regions GeneticProtein Kinase InhibitorsTranscription factorInflammationTumor Necrosis Factor-alphaActivator (genetics)HydrolysisInterleukin-8ImidazolesTranscription Factor RelAEndothelial CellsNF-κBHematologySterol EsteraseMolecular biologyLipoproteins LDLTranscription Factor AP-1Endothelial stem cellCytokineBiochemistrychemistryLow-density lipoproteinI-kappa B ProteinsLipoproteinThrombosis and Haemostasis
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