Search results for "signal transducer"

showing 8 items of 8 documents

The Role of JAK/STAT Molecular Pathway in Vascular Remodeling Associated with Pulmonary Hypertension

2021

Pulmonary hypertension is defined as a group of diseases characterized by a progressive increase in pulmonary vascular resistance (PVR), which leads to right ventricular failure and premature death. There are multiple clinical manifestations that can be grouped into five different types. Pulmonary artery remodeling is a common feature in pulmonary hypertension (PH) characterized by endothelial dysfunction and smooth muscle pulmonary artery cell proliferation. The current treatments for PH are limited to vasodilatory agents that do not stop the progression of the disease. Therefore, there is a need for new agents that inhibit pulmonary artery remodeling targeting the main genetic, molecular,…

0301 basic medicineJanus kinase 2 (JAK2)QH301-705.5Hypertension PulmonaryInflammationReviewVascular Remodeling030204 cardiovascular system & hematologyModels BiologicalCatalysisstatInorganic Chemistry03 medical and health sciences0302 clinical medicinemedicine.arterymedicineAnimalsHumanssignal transducer and activator of transcription 3 (STAT3)pulmonary hypertension (PH)Physical and Theoretical ChemistryEndothelial dysfunctionBiology (General)Molecular BiologyQD1-999SpectroscopyJanus Kinasesbiologybusiness.industryOrganic ChemistryJAK-STAT signaling pathwayGeneral Medicinemedicine.diseasePulmonary hypertensionComputer Science ApplicationsSTAT Transcription FactorsChemistry030104 developmental biologyPulmonary arterybiology.proteinCancer researchmedicine.symptombusinessMyofibroblastPlatelet-derived growth factor receptorSignal TransductionInternational Journal of Molecular Sciences
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Myeloid Cells Restrict MCMV and Drive Stress- Induced Extramedullary Hematopoiesis through STAT1

2019

Cytomegalovirus (CMV) has a high prevalence worldwide, is often fatal for immunocompromised patients, and causes bone marrow suppression. Deficiency of signal transducer and activator of transcription 1 (STAT1) results in severely impaired antiviral immunity. We have used cell- type restricted deletion of Stat1 to determine the importance of myeloid cell activity for the defense against murine CMV (MCMV). We show that myeloid STAT1 limits MCMV burden and infection- associated pathology in the spleen but does not affect ultimate clearance of infection. Unexpectedly, we found an essential role of myeloid STAT1 in the induction of extramedullary hematopoiesis (EMH). The EMH- promoting function…

0301 basic medicineMaleMuromegalovirusMyeloidIFN-II receptorReceptor Interferon alpha-betamonocytes signal transducer and activator of transcription Herpesviridae IFN-I receptor IFN-II receptor L-27 receptor TLR9 agonistmedicine.disease_causeVirus Replication0302 clinical medicineTLR9 agonistMyeloid CellsSTAT1Cells CulturedHerpesviridaeReceptors Interferonsignal transducer and activator of transcriptionvirus diseasesIL-27 receptorHerpesviridae InfectionsExtramedullary hematopoiesisKiller Cells NaturalHaematopoiesismedicine.anatomical_structureSTAT1 Transcription FactorBone marrow suppressionHematopoiesis ExtramedullaryFemalemonocytesBIOMEDICINA I ZDRAVSTVO. Temeljne medicinske znanosti.SpleenBiologyGeneral Biochemistry Genetics and Molecular BiologyHerpesviridaeArticle03 medical and health sciencesStress PhysiologicalmedicineAnimalsBIOMEDICINE AND HEALTHCARE. Basic Medical Sciences.Receptors Interleukinmedicine.diseaseMice Inbred C57BL030104 developmental biologyImmunologySTAT proteinbiology.protein030217 neurology & neurosurgeryGene DeletionSpleenIFN-I receptor
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The STAT3 Inhibitor Galiellalactone Reduces IL6-Mediated AR Activity in Benign and Malignant Prostate Models

2018

IL6/STAT3 signaling is associated with endocrine therapy resistance in prostate cancer, but therapies targeting this pathway in prostate cancer were unsuccessful in clinical trials so far. The mechanistic explanation for this phenomenon is currently unclear; however, IL6 has pleiotropic effects on a number of signaling pathways, including the androgen receptor (AR). Therefore, we investigated IL6-mediated AR activation in prostate cancer cell lines and ex vivo primary prostate tissue cultures in order to gain a better understanding on how to inhibit this process for future clinical trials. IL6 significantly increased androgen-dependent AR activity in LNCaP cells but importantly did not infl…

Male0301 basic medicineCancer ResearchINTERLEUKIN-6LactonesProstate cancerLIGAND-INDEPENDENT ACTIVATION0302 clinical medicineProstateDEPRIVATIONANDROGEN RECEPTORGLUCOCORTICOID-RECEPTORmedicine.anatomical_structureOncologyReceptors Androgen030220 oncology & carcinogenesisAndrogensSILTUXIMAB CNTO 328GROWTHSIGNAL TRANSDUCERSignal transductionLife Sciences & BiomedicineProtein BindingSignal TransductionSTAT3 Transcription FactorENZALUTAMIDEmedicine.drug_classMice NudeModels BiologicalTMPRSS203 medical and health sciencesProtein DomainsCell Line TumorLNCaPmedicineAnimalsHumansCastrationCANCER CELLSScience & TechnologyInterleukin-6business.industryProstatic NeoplasmsDNAmedicine.diseaseAndrogenXenograft Model Antitumor AssaysAndrogen receptor030104 developmental biologyCancer researchbusinessEx vivo
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Identification of residues in the putative 5th helical region of human interleukin-6, important for activation of the IL-6 signal transducer, gp130

1996

AbstractWe have previously shown that L58 in the putative 5th helical region of human interleukin-6 (IL-6) is important for activation of the IL-6 signal transducer gp130 [de Hon et al. (1995) FEBS Lett. 369, 187–191]. To further explore the importance of individual residues in this region for gp130 activation we have now combined Ala substitutions of residues E52, S53, S54, K55, E56, L58 and E60 with other substitutions in IL-6, known to affect gp130 activation (Q160E and T163P). The combination mutant protein with L58A completely lost the capacity to induce the proliferation of XG-1 myeloma cells, and could effectively antagonize wild type IL-6 activity on these cells. Moreover, the data …

Models MolecularBiophysicsHuman Interleukin-6BiochemistryProtein Structure SecondaryStructure-function analysisgp130Signal Transducer gp130Antigens CDStructural BiologyMutant proteinCytokine Receptor gp130Escherichia coliTumor Cells CulturedGeneticsHumansPoint MutationCloning MolecularInterleukin 6Molecular BiologyAlanineMembrane GlycoproteinsbiologyInterleukin-6Wild typeCell BiologyGlycoprotein 130Recombinant ProteinsProtein Structure TertiaryCell biologyKineticsBiochemistryMutagenesis Site-Directedbiology.proteinLeukemia Erythroblastic AcuteMultiple MyelomaCell DivisionSignal TransductionFEBS Letters
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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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Role of JAK/STAT in Interstitial Lung Diseases; Molecular and Cellular Mechanisms

2021

Interstitial lung diseases (ILDs) comprise different fibrotic lung disorders characterized by cellular proliferation, interstitial inflammation, and fibrosis. The JAK/STAT molecular pathway is activated under the interaction of a broad number of profibrotic/pro-inflammatory cytokines, such as IL-6, IL-11, and IL-13, among others, which are increased in different ILDs. Similarly, several growth factors over-expressed in ILDs, such as platelet-derived growth factor (PDGF), transforming growth factor β1 (TGF-β1), and fibroblast growth factor (FGF) activate JAK/STAT by canonical or non-canonical pathways, which indicates a predominant role of JAK/STAT in ILDs. Between the different JAK/STAT iso…

QH301-705.5medicine.medical_treatmentReviewCatalysisstatInorganic ChemistryPulmonary fibrosismedicineHumansProtein IsoformsPhysical and Theoretical ChemistryBiology (General)STAT3Molecular BiologyProtein Kinase InhibitorsQD1-999SpectroscopyCellular SenescenceJanus KinasesbiologyChemistryGrowth factorInterleukinsinterstitial lung disease (ILD)Organic ChemistryJAK-STAT signaling pathwayGeneral Medicinerespiratory systemmedicine.diseaseEndoplasmic Reticulum StressComputer Science Applicationsrespiratory tract diseasesSTAT Transcription FactorsChemistrysignal transducer and activator of transcription (STAT)biology.proteinCancer researchidiopathic pulmonary fibrosis (IPF)Janus kinaseLung Diseases InterstitialJanus kinases (JAK)Platelet-derived growth factor receptorTransforming growth factorSignal TransductionInternational Journal of Molecular Sciences
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STAT5b is a key effector of NRG-1/ERBB4-mediated myocardial growth

2023

The growth factor Neuregulin-1 (NRG-1) regulates myocardial growth and is currently under clinical investigation as a treatment for heart failure. Here, we demonstrate in several in vitro and in vivo models that STAT5b mediates NRG-1/EBBB4-stimulated cardiomyocyte growth. Genetic and chemical disruption of the NRG-1/ERBB4 pathway reduces STAT5b activation and transcription of STAT5b target genes Igf1, Myc, and Cdkn1a in murine cardiomyocytes. Loss of Stat5b also ablates NRG-1-induced cardiomyocyte hypertrophy. Dynamin-2 is shown to control the cell surface localization of ERBB4 and chemical inhibition of Dynamin-2 downregulates STAT5b activation and cardiomyocyte hypertrophy. In zebrafish e…

cardiomyocyte hypertrophyNRG-1–ErbB pathwaygeenitsydäncardiomyocyte hyperplasiadynaminkasvutekijätsydänlihassairaudetsydänlihassoluthypertrofinen kardiomyopatiasignal transduceractivator of transcriptionsolufysiologia
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Role of the NF-kB pathway and nitric oxide in mammary gland involution after weaning. Implications in breast cancer

2013

INTRODUCCIÓN La glándula mamaria es un órgano dinámico que alcanza su máximo desarrollo funcional con la lactancia, momento en el cual, a través de la producción de leche, aporta nutrientes y protección inmunológica a las crías de los mamíferos. Cuando la lactancia finaliza con el destete, el exceso de tejido glandular debe desaparecer y la glándula sufre una extensa remodelación hasta alcanzar nuevamente un estado pre-gestacional, preparada para un nuevo ciclo. La involución del tejido mamario es un proceso complejo durante el cual se suceden de forma coordinada una serie de eventos como la muerte de las células epiteliales secretoras, la proliferación de tejido adiposo circundante y la re…

nitrotyrosineweaningapoptosiscathepsin DUNESCO::CIENCIAS DE LA VIDA::Biología celularnuclear factor κappa B (NF-κB)mammary gland involutionsignal transducer and activator of transcription (STAT)breast cancer:CIENCIAS DE LA VIDA::Biología celular [UNESCO]inflammationnitric oxideUNESCO::CIENCIAS MÉDICAS::Ciencias clínicas::OncologíaNOS2-KO:CIENCIAS MÉDICAS::Ciencias clínicas::Oncología [UNESCO]
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