0000000000290207

AUTHOR

Stefania Gerbino

showing 10 related works from this author

RUOLO DELLA LEPTINA NELLE CELLULE EPITELIALI NASALI

2014

Leptin is involved in the lung epithelial homeostasis. Its role in the nasal tract is largely unknown. Allergic rhinitis (AR) is induced by the allergen exposure leading to a consequential structural abnormalities in the nasal epithelium. Topical corticosteroids are recommended as first-line therapy in AR. Parietaria pollen is one of the most important allergenic sources in the southern Europe. In vitro on human nasal epithelial cell line RPMI 2650, we aimed to determine whether allergen stimulation acts on leptin/leptin receptor pathway and how Fluticasone Furoate (FF) influences this pathway. The effects of the major allergen rPar j 1, of FF, of leptin and of TGFβ1 on cell proliferation a…

Settore BIO/14 - Farmacologiafluticasone furoaterPar j 1.allergic rhinitiepitheliumleptin
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Leptin and leptin receptor expression in asthma.

2009

Background The adipokine leptin is a potential new mediator for bronchial epithelial homeostasis. Asthma is a chronic inflammatory disease characterized by airway remodeling that might affect disease chronicity and severity. TGF-β is a tissue growth factor the dysregulation of which is associated with airway remodeling. Objective We sought to determine whether a bronchial epithelial dysfunction of the leptin/leptin receptor pathway contributes to asthma pathogenesis and severity. Methods We investigated in vitro the presence of leptin/leptin receptor on human bronchial epithelial cells. Then we studied the effect of TGF-β and fluticasone propionate on leptin receptor expression. Finally, th…

AdultLeptinMalemedicine.medical_specialtyPyridinesMorpholinesImmunologyAdipokineBronchiRespiratory MucosaSettore MED/10 - Malattie Dell'Apparato RespiratorioSettore BIO/09 - FisiologiaCell LinePathogenesisTransforming Growth Factor beta1Leptin leptin receptor severe asthma epithelium TGF-b remodelingInternal medicineImmunology and AllergyMedicineHumansEnzyme InhibitorsReceptorCell ProliferationLeptin receptorbusiness.industryTumor Necrosis Factor-alphaLeptindigestive oral and skin physiologyImidazolesMiddle AgedEpitheliumAsthmaRecombinant Proteinsrespiratory tract diseasesAndrostadienesmedicine.anatomical_structureEndocrinologyChromonesImmunologyFluticasoneReceptors LeptinFemalebusinesshormones hormone substitutes and hormone antagonistsEx vivoTransforming growth factorThe Journal of allergy and clinical immunology
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Fluticasone furoate maintains epithelial homeostasis via leptin/leptin receptor pathway in nasal cells

2014

Leptin is involved in the lung epithelial homeostasis. Its role in the nasal tract is largely unknown. Allergic rhinitis (AR) is induced by the allergen exposure leading to consequential structural abnormalities in the nasal epithelium. Topical corticosteroids are recommended as first-line therapy in AR. Parietaria pollen is one of the most important allergenic sources in the southern Europe. In vitro, in human nasal epithelial cell line RPMI 2650, we aimed to determine whether allergen stimulation acts on leptin/leptin receptor pathway and how fluticasone furoate (FF) influences this pathway. The effects of the major allergen recombinant Par j 1 (rPar j 1), of FF, of leptin, and of TGF-b1 …

LeptinSTAT3 Transcription Factormedicine.medical_specialtyAllergic rhinitis Epithelium Fluticasone furoate Leptin rPar j 1Clinical BiochemistryStimulationSettore MED/10 - Malattie Dell'Apparato RespiratorioBiologymedicine.disease_causeSettore BIO/09 - FisiologiaFluticasone propionateCell LineTransforming Growth Factor beta1AllergenWestern blotAllergic rhinitis Epithelium Fluticasone furoate Leptin rPar j 1Internal medicinemedicineHomeostasisHumansMolecular BiologyCell ProliferationPlant ProteinsLeptin receptormedicine.diagnostic_testCell growthLeptindigestive oral and skin physiologyCell BiologyGeneral MedicineAllergensRhinitis AllergicEpitheliumRecombinant ProteinsAndrostadienesNasal MucosaProtein TransportEndocrinologymedicine.anatomical_structureReceptors Leptinhormones hormone substitutes and hormone antagonistsmedicine.drugSignal Transduction
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Oxidative stress and innate immunity responses in cigarette smoke stimulated nasal epithelial cells

2013

Cigarette smoke extracts (CSE) may play a significant role in diseases of the upper airway including chronic rhinosinusitis. Even short term exposure of cigarette smoke has adverse effects on mitochondrial functions and redox homeostasis in tissues which may progress to further complications associated with chronic smoking. Cigarette smoke alters toll-like receptor 4 (TLR4) expression and activation in bronchial epithelial cells. Carbocysteine is an anti-oxidant and mucolytic agent. The effects of carbocysteine on CSE induced oxidative stress and on associated innate immune and inflammatory responses in nasal epithelial cells are largely unknown. The present study was aimed to assess in CSE…

LipopolysaccharidesNecrosisNeutrophilsPhalloidineCARB CSE Cigarette smoke LPS Nasal epithelial cells ROS Reactive oxygen species TLR4 carbocysteine cigarette smoke extracts lipolysaccharide reactive oxygen species toll like receptor 4Fluorescent Antibody TechniqueApoptosisMucous membrane of noseCell SeparationBiologyToxicologymedicine.disease_causeCell LineNecrosisSmokeTobaccomedicineHumansExpectorantschemistry.chemical_classificationReactive oxygen speciesInnate immune systemCarbocysteineEpithelial CellsCarbocysteineTobacco ProductsGeneral MedicineActinsImmunity InnateToll-Like Receptor 4Nasal MucosaOxidative StresschemistryApoptosisImmunologyTLR4medicine.symptomReactive Oxygen SpeciesOxidative stressToxicology in Vitro
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Apigenin affects leptin/leptin receptor pathway and induces cell apoptosis in lung adenocarcinoma cell line

2011

Abstract Background Apigenin, a common edible plant flavonoid, is a well characterised antioxidant. The adipokine leptin exerts proliferative and anti-apoptotic activities in a variety of cell types. In cancer cells, apigenin may induce a pro-apoptotic pathway whereas leptin has an anti-apoptotic role. The purpose of the study is to investigate the role of apigenin and of leptin/leptin receptor pathway on proliferation and on apoptosis in lung adenocarcinoma. Methods Immunocytochemistry, flow cytometry and RT-q-RT PCR, were used to investigate the expression and modulation of leptin receptors on the lung adenocarcinoma cell line A549 in presence or absence of apigenin and of leptin, alone o…

LeptinApigenin Apoptosis Leptin Lung cancerROSCancer Researchmedicine.medical_specialtyProgrammed cell deathLung NeoplasmsCell SurvivalAdipokineAdenocarcinoma of LungApoptosisCell Growth ProcessesAdenocarcinomaSettore MED/10 - Malattie Dell'Apparato RespiratorioBiologySettore BIO/09 - Fisiologiachemistry.chemical_compoundCell Line TumorInternal medicinemedicineHumansApigeninReceptorLeptin receptorCell growthLeptindigestive oral and skin physiologyEndocrinologyOncologychemistryApoptosisApigeninReceptors Leptinhormones hormone substitutes and hormone antagonistsEuropean Journal of Cancer
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Dual anti-oxidant and anti-inflammatory actions of the electrophilic cyclooxygenase-2-derived 17-oxo-DHA in lipopolysaccharide- and cigarette smoke-i…

2014

Abstract Background 17-Oxo-DHA is an endogenous electrophilic derivative of the omega-3 fatty acid docosahexaenoic acid (DHA) which is generated in activated macrophages by the action of cyclooxygenase-2. Methods The ability of 17-oxo-DHA to control inflammation and oxidative stress was tested in human macrophages (THP-1) and bronchial epithelial cell line (16HBE) stimulated with cigarette smoke extract (CSE) and lipopolysaccharide (LPS). All data were further confirmed using primary bronchial epithelial cells, alveolar macrophages and peripheral blood mononuclear cells. Results 17-Oxo-DHA was a strong inducer of the anti-oxidant response promoting Nrf2 nuclear accumulation, leading to the …

LipopolysaccharidesLipopolysaccharideDocosahexaenoic Acidsmedicine.drug_classBiophysicsAnti-Inflammatory AgentsInflammationPharmacologymedicine.disease_causeBiochemistryAnti-inflammatoryAntioxidantsCell Linechemistry.chemical_compoundImmune systemmedicineHumansOmega 3 fatty acidMolecular BiologyInflammationChemistryMacrophagesSmokingfood and beveragesEpithelial CellsHeme oxygenaseBiochemistryCyclooxygenase 2Leukocytes Mononuclearlipids (amino acids peptides and proteins)Tumor necrosis factor alphamedicine.symptomOxidative stressBiochimica et biophysica acta
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Effects in cigarette smoke stimulated bronchial epithelial cells of a corticosteroid entrapped into nanostructured lipid carriers

2014

Background Nanomedicine studies have showed a great potential for drug delivery into the lung. In this manuscript nanostructured lipid carriers (NLC) containing Fluticasone propionate (FP) were prepared and their biocompatibility and effects in a human bronchial epithelial cell line (16-HBE) stimulated with cigarette smoke extracts (CSE) were tested. Results Biocompatibility studies showed that the NLC did not induce cell necrosis or apoptosis. Moreover, it was confirmed that CSE increased intracellular ROS production and TLR4 expression in bronchial epithelial cells and that FP-loaded NLC were more effective than free drug in modulating these processes. Finally, the nanoparticles increased…

BiocompatibilityCellBiomedical EngineeringMedicine (miscellaneous)Pharmaceutical ScienceApoptosisBronchiBioengineeringChronic obstructive pulmonary disease; Asthma; hronic obstructive pulmonary disease.PharmacologyFluticasone propionatemedicine.disease_causeApplied Microbiology and BiotechnologyNanostructured lipid carriers Corticosteroid Fluticasone propionate Cigarette smoke Airway epithelial cell Chronic obstructive pulmonary disease Asthmachemistry.chemical_compoundAirway epithelial cellmedicineHumansCorticosteroidCells CulturedFluticasoneDrug CarriersNanostructured lipid carriersbusiness.industryResearchChronic obstructive pulmonary diseaseSmokingCigarette smokeEpithelial CellsGlutathioneGlutathioneLipidsAsthmaNanostructuresToll-Like Receptor 4medicine.anatomical_structurechemistrySettore CHIM/09 - Farmaceutico Tecnologico ApplicativoApoptosisDrug deliveryFluticasoneMolecular MedicineReactive Oxygen SpeciesbusinessOxidative stressIntracellularmedicine.drugJournal of Nanobiotechnology
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Carbocysteine regulates innate immune responses and senescence processes in cigarette smoke stimulated bronchial epithelial cells

2013

Cigarette smoke represents the major risk factor for chronic obstructive pulmonary disease (COPD). Cigarette smoke extracts (CSE) alter TLR4 expression and activation in bronchial epithelial cells. Carbocysteine, an anti-oxidant and mucolytic agent, is effective in reducing the severity and the rate of exacerbations in COPD patients. The effects of carbocysteine on TLR4 expression and on the TLR4 activation downstream events are largely unknown. This study was aimed to explore whether carbocysteine, in a human bronchial epithelial cell line (16-HBE), counteracted some pro-inflammatory CSE-mediated effects. In particular, TLR4 expression, LPS binding, p21 (a senescence marker), IL-8 mRNA and…

Cyclin-Dependent Kinase Inhibitor p21AgingNeutrophilsPhalloidinAnti-Inflammatory AgentsApoptosisBronchiInflammationBiologyToxicologySettore BIO/09 - FisiologiaAntioxidantsFlow cytometryPulmonary Disease Chronic Obstructivechemistry.chemical_compoundmedicineHumansRNA Messengersenescencebronchial cellscigaretteInnate immune systemmedicine.diagnostic_testCarbocysteineInterleukin-8SmokingEpithelial CellsCell migrationChemotaxisCarbocysteineGeneral MedicineFlow CytometryImmunity InnateCell biologyToll-Like Receptor 4chemistryImmunologyTLR4medicine.symptomInterleukin-1Signal TransductionToxicology Letters
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In vitro anticholinergic drugs affect CD8+ peripheral blood T-cells apoptosis in COPD

2011

Novel pharmacological strategies are aimed at the resolution of systemic inflammation in COPD potentiating peripheral blood T-cell (PBT-cell) apoptosis. Although muscarinic acetylcholine receptors (mAChRs) M(3) and choline-acetyltransferase (ChAT) participate in the airway inflammation of COPD, their role in PBT-cell apoptosis remains unexplained. We evaluated in PBT-cells from COPD patients, smoker (S) and control (C) subjects: (1) apoptosis (by annexin V binding), (2) mAChR M(3) and ChAT expression, acetylcholine (ACh)-binding; (3) choline levels in serum and PBT-cells extracts. We tested the effects of Tiotropium (Spiriva(®)) and hemicholinium-3 (HCh-3) on apoptosis, NFκB pathway, caspas…

MaleImmunologyScopolamine DerivativesApoptosisCD8-Positive T-LymphocytesPharmacologySystemic inflammationCholinergic AntagonistsCholineCholine O-AcetyltransferasePulmonary Disease Chronic ObstructiveAnnexinMuscarinic acetylcholine receptormedicineHumansImmunology and AllergyLymphocyte CountTiotropium BromideCaspaseAgedReceptor Muscarinic M3Caspase 8COPDbiologyCaspase 3Systemic inflammation Non-neuronal components of cholinergic system Caspases NF B pathwaybusiness.industryNF-kappa BHematologyTiotropium bromideMiddle Agedmedicine.diseaserespiratory tract diseasesEnzyme ActivationApoptosisbiology.proteinFemalemedicine.symptombusinessAcetylcholineProtein BindingSignal Transductionmedicine.drugImmunobiology
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Comparative cytoprotective effects of carbocysteine and fluticasone propionate in cigarette smoke extract-stimulated bronchial epithelial cells

2013

Cigarette smoke extracts (CSE) induce oxidative stress, an important feature in chronic obstructive pulmonary disease (COPD), and oxidative stress contributes to the poor clinical efficacy of corticosteroids in COPD patients. Carbocysteine, an antioxidant and mucolytic agent, is effec- tive in reducing the severity and the rate of exacerbations in COPD patients. The effects of carbocysteine on CSE-induced oxidative stress in bronchial epithelial cells as well as the comparison of these antioxidant effects of carbocysteine with those of fluticasone propionate are unknown. The present study was aimed to assess the effects of carbocysteine (10−4 M) in cell survival and intracellular reactive o…

medicine.medical_specialtyNecrosisCell SurvivalNF-E2-Related Factor 2Histone Deacetylase 2ApoptosisSettore MED/10 - Malattie Dell'Apparato Respiratoriomedicine.disease_causeBiochemistryFluticasone propionateAntioxidantsCell Linechemistry.chemical_compoundNecrosisInternal medicineparasitic diseasesTobaccomedicineHumansFluticasonechemistry.chemical_classificationReactive oxygen speciesOriginal PaperPlant ExtractsCarbocysteineCarbocysteineEpithelial CellsCell BiologyGlutathioneCigarette smoke . Airway epithelial cells . Reactive oxygen speciesGlutathioneAndrostadienesOxidative StressEndocrinologychemistryApoptosisFluticasonemedicine.symptomReactive Oxygen SpeciesOxidative stressHeme Oxygenase-1medicine.drug
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