Search results for "c-Jun N-terminal kinase"

showing 5 items of 5 documents

Regulation of the effects of CYP2E1-induced oxidative stress by JNK signaling

2014

The generation of excessive amounts of reactive oxygen species (ROS) leads to cellular oxidative stress that underlies a variety of forms of hepatocyte injury and death including that from alcohol. Although ROS can induce cell damage through direct effects on cellular macromolecules, the injurious effects of ROS are mediated largely through changes in signal transduction pathways such as the mitogen-activated protein kinase c-Jun N-terminal kinase (JNK). In response to alcohol, hepatocytes have increased levels of the enzyme cytochrome P450 2E1 (CYP2E1) which generates an oxidant stress that promotes the development of alcoholic steatosis and liver injury. These effects are mediated in larg…

Alcoholic liver diseaseClinical BiochemistryReview ArticleMitogen-activated protein kinase kinasemedicine.disease_causeBiochemistryCytochrome P450 2E10302 clinical medicineMolecular Targeted TherapyMitogen-activated protein kinaseslcsh:QH301-705.5c-Jun N-terminal kinasechemistry.chemical_classificationTNF tumor necrosis factorlcsh:R5-9200303 health sciencesCell DeathCYP2E1 cytochrome P450 2E1Cytochrome P-450 CYP2E13. Good healthCell biologyPKD protein kinase DLiverJNK c-Jun N-terminal kinaseSab SH3 homology associated BTK binding protein030211 gastroenterology & hepatologySignal transductionlcsh:Medicine (General)MAP Kinase Signaling SystemAPAP acetaminophenMKK MAPK kinaseBiology03 medical and health sciencesROS reactive oxygen speciesPKC protein kinase CmedicineAnimalsHumansMAPKKK MAPK kinase kinaseProtein kinase ACell damage030304 developmental biologyReactive oxygen speciesMAP kinase kinase kinaseOrganic ChemistryJNK Mitogen-Activated Protein KinasesAlcoholic liver diseasemedicine.diseaseERK1/2 extracellular signal-regulated kinase 1/2Fatty Liverlcsh:Biology (General)chemistryOxidative stressNAFLD nonalcoholic fatty liver diseaseReactive Oxygen SpeciesMAPK mitogen-activated protein kinaseOxidative stressRedox Biology
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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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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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pRb suppresses camptothecin-induced apoptosis in human osteosarcoma Saos-2 cells by inhibiting c-Jun N-terminal kinase

2001

AbstractThis paper studies the cytotoxic effect induced by the topoisomerase I inhibitor camptothecin in human osteosarcoma Saos-2 cells, which lack p53 and contain a non-functional form of the product of the retinoblastoma gene, pRb. Cytotoxicity induced by camptothecin was dose- and time-dependent; the treatment with 100 nM camptothecin reduced cell viability by 50% at 32 h and by 75% at 72 h of exposure. The cytotoxic effect was caused by apoptosis, as ascertained by morphological evidence, acridine orange-ethidium bromide staining and flow cytometric analysis. Apoptosis was accompanied by both the activation of caspase-3 and the fragmentation of poly(ADP-ribose) polymerase. Treatment wi…

Time FactorsCell SurvivalProto-Oncogene Proteins c-junBlotting WesternBiophysicsApoptosisBiologyTransfectionRetinoblastoma ProteinBiochemistryStructural BiologyTumor Cells CulturedpRb JNK topoisomerase I inhibitors osteosarcomaGeneticsmedicineHumansCytotoxic T cellViability assayPhosphorylationFragmentation (cell biology)neoplasmsMolecular BiologySaos-2 cellsc-Jun N-terminal kinaseCell SizeDose-Response Relationship DrugCaspase 3Cell growthCell Cyclec-junJNK Mitogen-Activated Protein KinasesHydrogen PeroxideCell BiologyFlow CytometryGlutathioneMolecular biologyEnzyme ActivationOxidative StresspRbDNA Topoisomerases Type IApoptosisCaspasesCamptothecinMitogen-Activated Protein KinasesPoly(ADP-ribose) PolymerasesTopoisomerase I InhibitorsCamptothecinmedicine.drugFEBS Letters
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Late Activation of Stress-activated Protein Kinases/c-Jun N-terminal Kinases Triggered by Cisplatin-induced DNA Damage in Repair-defective Cells

2011

Although stress-activated protein kinases/c-Jun N-terminal kinases (SAPK/JNK) are rapidly activated by genotoxins, the role of DNA damage in this response is not well defined. Here we show that the SEK1/MKK4-mediated dual phosphorylation of SAPK/JNK (Thr-183/Tyr-185) correlates with the level of cisplatin-DNA adducts at late times (16–24 h) after drug treatment in both human and mouse cells. Transfection of platinated plasmid DNA also caused SAPK/JNK activation. A defect in transcription-coupled nucleotide excision repair resting on a mutation in Cockayne syndrome group B protein promoted the late SAPK/JNK activation following cisplatin exposure. Signaling to SAPK/JNK was accompanied by act…

rho GTP-Binding ProteinsDNA RepairMAP Kinase Kinase 4DNA repairDNA damageDNA damage response; DNA repair; cisplatin-DNA adducts; SAPK/JNKp38 mitogen-activated protein kinasesAntineoplastic AgentsCell Cycle ProteinsAtaxia Telangiectasia Mutated ProteinsProtein Serine-Threonine KinasesDNA and ChromosomesBiologyBiochemistryAtaxia Telangiectasia Mutated ProteinsDNA AdductsMiceRadiation IonizingAnimalsHumansDNA Breaks Double-StrandedMolecular BiologyReplication protein ACells CulturedMice KnockoutKinaseTumor Suppressor ProteinsJNK Mitogen-Activated Protein KinasesCell BiologyMolecular biologyDNA-Binding ProteinsEnzyme Activationc-Jun N-terminal kinasesbiology.proteinCisplatinSignal TransductionNucleotide excision repairJournal of Biological Chemistry
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