0000000000481774

AUTHOR

Luisa Cigliano

showing 2 related works from this author

Haptoglobin interacts with apolipoprotein E and beta-amyloid and influences their crosstalk.

2014

Beta-amyloid accumulation in brain is a driving force for Alzheimer's disease pathogenesis. Apolipoprotein E (ApoE) represents a critical player in beta-amyloid homeostasis, but its role in disease progression is controversial. We previously reported that the acute-phase protein haptoglobin binds ApoE and impairs its function in cholesterol homeostasis. The major aims of this study were to characterize the binding of haptoglobin to beta-amyloid, and to evaluate whether haptoglobin affects ApoE binding to beta-amyloid. Haptoglobin is here reported to form a complex with beta-amyloid as shown by immunoblotting experiments with purified proteins, or by its immunoprecipitation in brain tissues …

Apolipoprotein EMalePhysiologyDiseaseBeta-amyloidBiochemistryAmyloid beta-Protein PrecursorAlzheimer' diseasepolycyclic compoundsskin and connective tissue diseasesapolipoprotein EbiologyChemistryMedicine (all)Haptoglobinfood and beveragesBrainApoE/A? complexGeneral MedicineMiddle AgedhaptoglobinCrosstalk (biology)ApoE/Aβ complexSettore MED/26 - Neurologialipids (amino acids peptides and proteins)FemaleAlzheimer's diseaseProtein BindingAdultmedicine.medical_specialtyImmunoprecipitationCognitive NeuroscienceEnzyme-Linked Immunosorbent AssayCHO CellsTransfectionAlzheimer' disease; ApoE/Aβ complex; Apolipoprotein E; Beta-amyloid; Haptoglobin; Human brain tissue; Adult; Aged; Alzheimer Disease; Amyloid beta-Peptides; Amyloid beta-Protein Precursor; Analysis of Variance; Animals; Apolipoproteins E; Brain; CHO Cells; Cricetulus; Enzyme-Linked Immunosorbent Assay; Female; Haptoglobins; Humans; Immunoprecipitation; Male; Middle Aged; Mutation; Protein Binding; Transfection; Biochemistry; Cell Biology; Physiology; Cognitive Neuroscience; Medicine (all)NOApolipoproteins ECricetulusAlzheimer DiseaseInternal medicinemental disordersmedicineAnimalsHumansImmunoprecipitationAgedAnalysis of VarianceAmyloid beta-PeptidesHaptoglobinsNeurotoxicityAlzheimer’diseaseCell Biologymedicine.diseasehuman brain tissueEndocrinologyMutationbiology.proteinAlzheimer'diseaseHomeostasisACS chemical neuroscience
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Differences between the Glycosylation Patterns of Haptoglobin Isolated from Skin Scales and Plasma of Psoriatic Patients

2012

Improved diagnosis of psoriasis, by new biomarkers, is required for evaluating the progression rate of the disease and the response to treatment. Haptoglobin (Hpt), a glycoprotein secreted by hepatocytes and other types of cells including keratinocytes, was found with glycan changes in psoriasis and other diseases. We previously reported that Hpt isolated from plasma of psoriatic patients is more fucosylated than Hpt of healthy subjects. The aim of this study was to compare the glycosylation pattern of Hpt isolated from skin scales or plasma of patients with psoriasis with that of Hpt from cornified epidermal layer or plasma of healthy subjects. High performance liquid chromatography analys…

GlycosylationGlycobiologylcsh:MedicineDermatologic PathologyBiochemistryMass SpectrometryFucosechemistry.chemical_compoundLectinsBlood plasmalcsh:ScienceChromatography High Pressure LiquidFucosylationchemistry.chemical_classificationglycanMultidisciplinarybiologyHaptoglobinGlycopeptideshaptoglobinMedicineResearch ArticleAdultskinProtein Structuremedicine.medical_specialtyGlycanGlycosylationInflammatory DiseasesImmunologyDermatologyAutoimmune DiseasesPolysaccharidesInternal medicinePsoriasismedicinePsoriasisHumansAmino Acid SequenceImmunoassaysBiologyGlycoproteinsHaptoglobinslcsh:RProteinsmedicine.diseasecarbohydrates (lipids)EndocrinologychemistryImmunologyImmunologic Techniquesbiology.proteinglycanslectinClinical Immunologylcsh:QGlycoproteinBiomarkers
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