Search results for " JNK"

showing 4 items of 4 documents

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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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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Decreased SAPK/JNK signalling affects cytokine release and STAT3 activation in psoriatic fibroblasts.

2015

STAT3 Transcription FactorMAP Kinase Signaling Systemmedicine.medical_treatmentDermatologyBiochemistryp38 Mitogen-Activated Protein KinasesPsoriasismedicineSapk jnkHumansPsoriasisPhosphorylationSTAT3Molecular BiologyStat3 activationMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3biologyChemistryInterleukin-6Tumor Necrosis Factor-alphaInterleukin-8JNK Mitogen-Activated Protein KinasesTranscription Factor RelAFibroblastsmedicine.diseaseSignallingCytokineCase-Control StudiesCancer researchbiology.proteinPhosphorylationTumor necrosis factor alphaExperimental dermatology
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Anandamide-induced apoptosis in Chang liver cells involves ceramide and JNK/AP-1 pathway

2006

In the present study we demonstrate that anandamide, the most important endogenous cannabinoid, markedly induced apoptosis in Chang liver cells, an immortalized non-tumor cell line derived from normal liver tissue, while it induced only modest effects in a number of hepatoma cell lines. The apoptotic effect was reduced by methyl-beta-cyclodextrin, a membrane cholesterol depletor, suggesting an interaction between anandamide and the membrane microdomains named lipid rafts. Anandamide effects were mediated by the production of ceramide, as demonstrated by experiments performed with the sphingomyelinase inhibitor, desipramine, or with the sphingomyelinase activator, melittin. This conclusion w…

CeramideProgrammed cell deathFas Ligand ProteinCell SurvivalPolyunsaturated AlkamidesLiver cytologyp38 mitogen-activated protein kinasesBlotting WesternApoptosisArachidonic AcidsBiologyCeramidesCell LineMembrane Potentialschemistry.chemical_compoundCell Line TumorProto-Oncogene ProteinsGeneticsHumansEnzyme InhibitorsMembrane GlycoproteinsBcl-2-Like Protein 11Dose-Response Relationship DrugDesipramineJNK Mitogen-Activated Protein KinasesMembrane ProteinsFree Radical ScavengersGeneral MedicineAnandamideEndocannabinoid systemAcetylcysteineCell biologyEnzyme ActivationTranscription Factor AP-1cannabinoids apoptosis tumor cells JNK/AP1LiverchemistryApoptosisCaspasesMitochondrial MembranesTumor Necrosis FactorsApoptosis Regulatory ProteinsSphingomyelinEndocannabinoidsSignal TransductionInternational Journal of Molecular Medicine
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