0000000001029305

AUTHOR

Elena Fiorio

showing 7 related works from this author

Leptin/HER2 crosstalk in breast cancer: in vitro study and preliminary in vivo analysis.

2008

Abstract Background Obesity in postmenopausal women is associated with increased breast cancer risk, development of more aggressive tumors and resistance to certain anti-breast cancer treatments. Some of these effects might be mediated by obesity hormone leptin, acting independently or modulating other signaling pathways. Here we focused on the link between leptin and HER2. We tested if HER2 and the leptin receptor (ObR) can be coexpressed in breast cancer cell models, whether these two receptors can physically interact, and whether leptin can transactivate HER2. Next, we studied if leptin/ObR can coexist with HER2 in breast cancer tissues, and if presence of these two systems correlates wi…

LeptinTranscriptional Activationmedicine.medical_specialtyCancer ResearchReceptor ErbB-2Breast Neoplasmslcsh:RC254-282Breast cancerSurgical oncologyRisk FactorsInternal medicineCell Line TumormedicineGeneticsHumansObesityReceptorskin and connective tissue diseasesneoplasmsLeptin receptorbusiness.industryLeptinCarcinoma Ductal BreastReceptor Cross-Talklcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensmedicine.diseaseImmunohistochemistryGene Expression Regulation NeoplasticPostmenopauseEndocrinologyOncologyImmunohistochemistryReceptors LeptinFemaleSignal transductionbusinessImmunostainingProtein BindingResearch ArticleBMC cancer
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Functional analysis of the -2548G/A leptin gene polymorphism in breast cancer cells

2009

Leptin is overexpressed in human breast tumors and is produced by breast cancer cells in response to obesity-related stimuli. The leptin promoter polymorphism Lep-2548G/A can be associated with increased leptin secretion by adipocytes and elevated cancer risk. However, molecular mechanisms underlying the link between Lep-2548G/A and breast cancer have never been addressed. Lep-2548G/A is proximal to a binding site for the transcriptional factor Sp1. Furthermore nucleolin, a transcriptional repressor, can bind Sp1 or its consensus site. Consequently, we focused on the impact of Lep-2548G/A on Sp1- and nucleolin-dependent leptin transcription in breast cancer cells. The Lep-2548G/A was identi…

LeptinChromatin ImmunoprecipitationCancer Researchmedicine.medical_specialtyGenotypeSp1 Transcription FactorBlotting WesterneducationAdipokineBreast NeoplasmsBiologyBody Mass IndexBreast cancerInternal medicineTumor Cells CulturedmedicineHumansHypoglycemic AgentsInsulinObesityRNA MessengerPromoter Regions Genetichealth care economics and organizationsPolymorphism GeneticLeptin receptorReverse Transcriptase Polymerase Chain ReactionLeptinRNA-Binding ProteinsCancerPhosphoproteinsmedicine.diseaseEndocrinologyOncologyCancer researchImmunohistochemistryBreast diseaseNucleolinhormones hormone substitutes and hormone antagonistsInternational Journal of Cancer
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Abstract OT-31-01: A phase II study to evaluate the efficacy and safety of pembrolizumab plus carboplatin in BRCA-related metastatic breast cancer: P…

2021

Abstract Background Considering the high proportion of tumor-infiltrating lymphocytes (TILs) in BRCA-related breast cancer, we expect that PD-1 pathway is highly expressed and PD-1 antagonist pembrolizumab could provide clinical activity in this kind of tumor. Furthermore, BRCA-related breast cancers are known to be more sensitive to platinum-derived drugs. Thus the association between Pembrolizumab and Carboplatin in metastatic BRCA-related breast cancer seems to be active in this setting of patients. This study will evaluate the safety and the efficacy of Pembrolizumab associated with Carboplatin in BRCA mutated or with unknown mutations metastatic breast cancer patients. Study and Statis…

OncologyCancer Researchmedicine.medical_specialtyPerformance statusbusiness.industryCancerPhases of clinical researchPembrolizumabmedicine.diseaseMetastatic breast cancerCarboplatinchemistry.chemical_compoundRegimenBreast cancerOncologychemistryInternal medicinemedicinebusinessCancer Research
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Insulin-dependent leptin expression in breast cancer cells.

2008

Abstract Pathologic conditions associated with hyperinsulinemia, such as obesity, metabolic syndrome, and diabetes, seem to increase the risk of breast cancer. Here, we studied molecular mechanisms by which insulin activates the expression of leptin, an obesity hormone that has been shown to promote breast cancer progression in an autocrine or paracrine way. Using MDA-MB-231 breast cancer cells, we found that (a) insulin stimulated leptin mRNA and protein expression, which was associated with increased activation of the leptin gene promoter; (b) insulin increased nuclear accumulation of transcription factors hypoxia inducible factor (HIF)-1α and Sp1 and their loading on the leptin promoter;…

LeptinTranscriptional ActivationCancer Researchmedicine.medical_specialtySmall interfering RNAChromatin ImmunoprecipitationSp1 Transcription FactorBlotting WesternFluorescent Antibody TechniqueBreast NeoplasmsEnzyme-Linked Immunosorbent AssayBiologyParacrine signallingPhosphatidylinositol 3-Kinasesbreast cancerInternal medicinemedicineHyperinsulinemiaTumor Cells CulturedHumansHypoglycemic AgentsInsulinRNA MessengerRNA Small InterferingAutocrine signallingLuciferasesPromoter Regions GeneticTranscription factorCell NucleusMitogen-Activated Protein Kinase 1Gene knockdownLeptin receptorMitogen-Activated Protein Kinase 3Reverse Transcriptase Polymerase Chain ReactionLeptinmedicine.diseaseHypoxia-Inducible Factor 1 alpha SubunitCell HypoxiaEndocrinologyOncologyCancer researchFemalehormones hormone substitutes and hormone antagonistsCancer research
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PANHER study: a 20-year treatment outcome analysis from a multicentre observational study of HER2-positive advanced breast cancer patients from the r…

2021

Background: The evolution of therapeutic landscape of human epidermal growth factor receptor-2 (HER2)-positive breast cancer (BC) has led to an unprecedented outcome improvement, even if the optimal sequence strategy is still debated. To address this issue and to provide a picture of the advancement of anti-HER2 treatments, we performed a large, multicenter, retrospective study of HER2-positive BC patients. Methods: The observational PANHER study included 1,328 HER2-positive advanced BC patients treated with HER2 blocking agents since June 2000 throughout July 2020. Endpoints of efficacy were progression-free survival (PFS) and overall survival (OS). Results: Patients who received a first-l…

Oncologymedicine.medical_specialtyAdvanced breastT-DM1Treatment outcomeLapatinibBreast cancerpertuzumabInternal medicineMedicinelapatinibRC254-282advanced breast cancerbusiness.industryHuman epidermal growth factoradvanced breast cancer; HER2-positive; lapatinib; pertuzumab; sequence; T-DM1Neoplasms. Tumors. Oncology. Including cancer and carcinogensCancersequencemedicine.diseaseHER2-positiveOncologyObservational studyPertuzumabbusinessmedicine.drug
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Distinct HR expression patterns significantly affect the clinical behavior of metastatic HER2+ breast cancer and degree of benefit from novel anti-HE…

2020

We analyzed data from 738 HER2‐positive metastatic breast cancer (mbc) patients treated with pertuzumab‐based regimens and/or T‐DM1 at 45 Italian centers. Outcomes were explored in relation to tumor subtype assessed by immunohistochemistry (IHC). The median progression‐free survival at first‐line (mPFS1) was 12 months. Pertuzumab as first‐line conferred longer mPFS1 compared to other first‐line treatments (16 vs. 9 months, p = 0.0001), regardless of IHC subtype. Median PFS in second‐line (mPFS2) was 7 months, with no difference by IHC subtype, but it was more favorable with T‐DM1 compared to other agents (7 vs. 6 months, p = 0.03). There was no PFS2 gain in patients with tumors expressing b…

OncologyCancer ResearchMultivariate analysisSettore MED/06 - Oncologia MedicaReceptor ErbB-2T-DM1Estrogen receptor0302 clinical medicineErbB-2TrastuzumabReceptorsAntineoplastic Combined Chemotherapy Protocols80 and overMolecular Targeted TherapyNeoplasm MetastasisCancer Therapy and PreventionProgesteroneAged 80 and overadvanced breast cancerTumorreal worldMiddle AgedPrognosisMetastatic breast cancerImmunohistochemistryGene Expression Regulation NeoplastictrastuzumabOncologyReceptors Estrogen030220 oncology & carcinogenesisImmunohistochemistryFemaleadvanced breast cancer; HER2 positive; pertuzumab; real world; T-DM1; trastuzumab; Adult; Aged; Aged 80 and over; Antineoplastic Combined Chemotherapy Protocols; Biomarkers Tumor; Breast Neoplasms; Female; Humans; Immunohistochemistry; Middle Aged; Molecular Targeted Therapy; Neoplasm Metastasis; Neoplasm Staging; Prognosis; Receptor ErbB-2; Receptors Estrogen; Receptors Progesterone; Gene Expression Regulation NeoplasticPertuzumabReceptors ProgesteroneHER2 positive; T-DM1; advanced breast cancer; pertuzumab; real world; trastuzumabmedicine.drugReceptorAdultHER2 positivemedicine.medical_specialtyT‐DM1advanced breast cancer; HER2 positive; pertuzumab; real world; T-DM1; trastuzumab; chemotherapyBreast Neoplasms03 medical and health sciencesBreast cancerSettore MED/04 - PATOLOGIA GENERALEpertuzumabInternal medicinemedicineBiomarkers TumorHumansAgedNeoplasm StagingNeoplasticbusiness.industrymedicine.diseaseEstrogenSettore CHIM/08 - Chimica FarmaceuticaGene Expression RegulationMED/06 - ONCOLOGIA MEDICAbusinessBiomarkersHormone
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sj-docx-1-tam-10.1177_17588359211059873 ��� Supplemental material for PANHER study: a 20-year treatment outcome analysis from a multicentre observati…

2021

Supplemental material, sj-docx-1-tam-10.1177_17588359211059873 for PANHER study: a 20-year treatment outcome analysis from a multicentre observational study of HER2-positive advanced breast cancer patients from the real-world setting by Laura Pizzuti, Eriseld Krasniqi, Isabella Sperduti, Maddalena Barba, Teresa Gamucci, Maria Mauri, Enzo Maria Veltri, Icro Meattini, Rossana Berardi, Francesca Sofia Di Lisa, Clara Natoli, Mirco Pistelli, Laura Iezzi, Emanuela Risi, Nicola D���Ostilio, Silverio Tomao, Corrado Ficorella, Katia Cannita, Ferdinando Riccardi, Alessandra Cassano, Emilio Bria, Maria Agnese Fabbri, Marco Mazzotta, Giacomo Barchiesi, Andrea Botticelli, Giuliana D���Auria, Anna Ceribe…

110203 Respiratory DiseasesFOS: Clinical medicine111702 Aged Health CareFOS: Health sciences111599 Pharmacology and Pharmaceutical Sciences not elsewhere classified111299 Oncology and Carcinogenesis not elsewhere classified
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