Search results for " Breast neoplasms"

showing 6 items of 96 documents

Proton-irradiated breast cells: molecular points of view

2019

Abstract Breast cancer (BC) is the most common cancer in women, highly heterogeneous at both the clinical and molecular level. Radiation therapy (RT) represents an efficient modality to treat localized tumor in BC care, although the choice of a unique treatment plan for all BC patients, including RT, may not be the best option. Technological advances in RT are evolving with the use of charged particle beams (i.e. protons) which, due to a more localized delivery of the radiation dose, reduce the dose administered to the heart compared with conventional RT. However, few data regarding proton-induced molecular changes are currently available. The aim of this study was to investigate and descri…

breast cancer cDNA microarray gene signature proton therapy radiation Breast Breast Neoplasms Cell Line Tumor DNA Complementary Dose-Response Relationship Radiation Female Gene Expression Profiling Gene Expression Regulation Neoplastic Humans Inflammation MCF-7 Cells Oligonucleotide Array Sequence Analysis Phenotype Proton Therapy Radiation Tolerance Radiotherapy ProtonsDNA ComplementaryHealth Toxicology and Mutagenesismedicine.medical_treatmentBreast NeoplasmsCell fate determinationRadiation Tolerancegene signature03 medical and health sciences0302 clinical medicineBreast cancerbreast cancerCell Line TumorRegular Papermedicineproton therapyHumansRadiology Nuclear Medicine and imagingBreastClonogenic assayBiologyProton therapyOligonucleotide Array Sequence Analysis030304 developmental biologyInflammationcDNA microarray0303 health sciencesRadiotherapyChemistryGene Expression ProfilingBreast cancer; radiation; cDNA microarray; gene signature; proton therapyCancerDose-Response Relationship RadiationGene signaturemedicine.diseaseGene Expression Regulation NeoplasticGene expression profilingRadiation therapyradiationPhenotype030220 oncology & carcinogenesisMCF-7 CellsCancer researchFemaleProtons
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Effective targeting of breast cancer stem cells by combined inhibition of Sam68 and Rad51

2022

AbstractBreast cancer (BC) is the second cause of cancer-related deceases in the worldwide female population. Despite the successful treatment advances, 25% of BC develops resistance to current therapeutic regimens, thereby remaining a major hurdle for patient management. Current therapies, targeting the molecular events underpinning the adaptive resistance, still require effort to improve BC treatment. Using BC sphere cells (BCSphCs) as a model, here we showed that BC stem-like cells express high levels of Myc, which requires the presence of the multifunctional DNA/RNA binding protein Sam68 for the DNA-damage repair. Analysis of a cohort of BC patients displayed that Sam68 is an independen…

cancer stem cellCancer Researchtherapy resistanceDNA RepairSettore MED/50 - Scienze Tecniche Mediche ApplicateCell Cycle ProteinsBreast NeoplasmsTriple Negative Breast NeoplasmsMycCell LineBreast cancerSettore MED/04 - PATOLOGIA GENERALECell Line TumorGeneticsHumansMolecular BiologyAdaptor Proteins Signal TransducingTumorSignal TransducingRNA-Binding ProteinsAdaptor ProteinsDNA-Binding ProteinsSam68Neoplastic Stem CellsFemaleRad51 RecombinaseSettore MED/46 - Scienze Tecniche Di Medicina Di Laboratorio
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TAZ is required for metastatic activity and chemoresistance of breast cancer stem cells

2015

Metastatic growth in breast cancer (BC) has been proposed as an exclusive property of cancer stem cells (CSCs). However, formal proof of their identity as cells of origin of recurrences at distant sites and the molecular events that may contribute to tumor cell dissemination and metastasis development are yet to be elucidated. In this study, we analyzed a set of patient-derived breast cancer stem cell (BCSC) lines. We found that in vitro BCSCs exhibit a higher chemoresistance and migratory potential when compared with differentiated, nontumorigenic, breast cancer cells (dBCCs). By developing an in vivo metastatic model simulating the disease of patients with early BC, we observed that BCSCs…

cancer stem cellsTAZAnimals; Biomarkers Tumor; Breast Neoplasms; Cell Line Tumor; Disease-Free Survival; Female; Gene Expression Regulation Neoplastic; Humans; Mice; Neoplasm Metastasis; Neoplasm Recurrence Local; Neoplastic Stem Cells; Transcription Factors; Xenograft Model Antitumor AssaysCancer ResearchBioinformaticschemotherapyMetastasistaz; breast cancerMiceNeoplasm Metastasiseducation.field_of_studyTumorIntracellular Signaling Peptides and ProteinsCell cycleGene Expression Regulation NeoplasticLocalNeoplastic Stem Cellsbreast cancer; cancer stem cells; chemotherapy; metastasis; TAZ; Animals; Biomarkers Tumor; Breast Neoplasms; Cell Line Tumor; Disease-Free Survival; Female; Gene Expression Regulation Neoplastic; Humans; Intracellular Signaling Peptides and Proteins; Mice; Neoplasm Metastasis; Neoplasm Recurrence Local; Neoplastic Stem Cells; Xenograft Model Antitumor Assays; Molecular Biology; Genetics; Cancer ResearchFemaleStem cellPopulationBreast NeoplasmsBiologyDisease-Free SurvivalCell Linebreast cancer cancer stem cells TAZBreast cancerbreast cancerCancer stem cellSettore MED/04 - PATOLOGIA GENERALECell Line TumormedicineBiomarkers TumorGeneticsmetastasisAnimalsHumanseducationMolecular BiologyHippo signaling pathwayNeoplasticCancermedicine.diseaseXenograft Model Antitumor AssaysNeoplasm RecurrenceGene Expression RegulationTranscriptional Coactivator with PDZ-Binding Motif ProteinsCancer researchTrans-ActivatorsNeoplasm Recurrence LocalBiomarkersTranscription Factors
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(+)-Dehydroabietylamine derivatives target triple-negative breast cancer.

2015

Breast cancer remains the leading cause of cancer-related death among women. The invasive triple-negative subtype is unresponsive to estrogen therapy, and few effective treatments are available. In search of new chemical scaffolds to target this disease, we conducted a phenotypic screen against the human breast carcinoma cell lines MDA-MB-231, MA11, and MCF-7 using terrestrial natural products. Natural products that preferentially inhibited proliferation of triple-negative MDA-MB-231 cells over estrogen receptor-positive cells were further studied; herein we focused on the abietanes. The activity of the abietane carnosol prompted us to generate a focus library from the readily available (+)…

medicine.drug_classPhenotypic screeningApoptosisTriple Negative Breast NeoplasmsPharmacologyCarnosolchemistry.chemical_compoundStructure-Activity RelationshipBreast cancerCell Line TumorDrug DiscoverymedicineHumansTriple-negative breast cancerCell ProliferationPharmacologyBiological ProductsDose-Response Relationship DrugMolecular StructureCell growthDrug discoveryOrganic ChemistryStereoisomerismGeneral MedicineTriple Negative Breast Neoplasmsmedicine.diseaseAntineoplastic Agents PhytogenicchemistryEstrogenAbietanesMCF-7 CellsFemaleDrug Screening Assays AntitumorEuropean journal of medicinal chemistry
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Anthracyclines and regional myocardial damage in breast cancer patients. A multicentre study from the Working Group on Drug Cardiotoxicity and Cardio…

2021

Abstract Aims In breast cancer (BC) patients treated with anthracyclines-based therapies, we aim at assessing whether adjuvant drugs impact cardiac function differently and whether their cardiotoxicity has a regional pattern. Methods and results In a multicentre study, 146 BC patients (56 ± 11 years) were prospectively enrolled and divided into three groups according to the received treatments: AC/EC-Group (doxorubicin or epirubicin + cyclophosphamide), AC/EC/Tax-Group (AC/EC + taxanes), FEC/Tax-Group (fluorouracil + EC + taxanes). Fifty-six patients of the total cohort also received trastuzumab. Left ventricular ejection fraction (LVEF) and global longitudinal strain (GLS) were calculated …

medicine.medical_specialtymedicine.medical_treatmentPopulationCardiologyBreast NeoplasmsAnthracyclineAnthracyclines; Breast cancer; Cardiotoxicity; Myocardial strain030204 cardiovascular system & hematologyAnthracyclines Breast cancer Breast Neoplasms Cardiology Cardiotoxicity Echocardiography Female Humans italy Myocardial strain Pharmaceutical Preparations Stroke Volume Trastuzumab Ventricular Function Left Ventricular Dysfunction LeftVentricular Function LeftVentricular Dysfunction Left03 medical and health sciencesBreast cancer0302 clinical medicineTrastuzumabInternal medicineHumansMedicineAnthracyclinesRadiology Nuclear Medicine and imagingeducationeducation.field_of_studyChemotherapyCardiotoxicityEjection fractionbusiness.industryStroke VolumeGeneral MedicineTrastuzumabMyocardial strainChemotherapy regimenCardiotoxicityItalyPharmaceutical PreparationsEchocardiographyFluorouracil030220 oncology & carcinogenesisCardiologyFemaleCardiology and Cardiovascular Medicinebusinessmedicine.drugEpirubicinEuropean Heart Journal - Cardiovascular Imaging
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Tubular carcinoma of the breast: Outcome and loco-regional recurrence in 307 patients

2005

Abstract Purpose The aim of this study is to describe the University of Florence experience in evaluating clinical, pathologic and treatment factors as they are related to the outcome and loco-regional recurrence in patients with tubular breast carcinoma. Material and methods Three hundred and seven patients (median age 56.4 years, range 26–91 years) with histological verified tubular carcinoma of the breast were consecutively treated at University of Florence from 1976 to 2001. All patients were followed for a median of 8.4 years (range 3 months to 20 years). Thirty-seven women underwent mastectomy and 270 underwent breast conserving surgery. Positive axillary nodes were found in 15% of pa…

medicine.medical_treatmentDiseaseSegmentalMastectomy SegmentalBreast cancerDuctalBreast-conserving surgery80 and overBreastAdjuvantMastectomyAged 80 and overCarcinoma Ductal BreastTubular carcinomaGeneral MedicineMiddle AgedCombined Modality TherapyTreatment OutcomeBreast cancer; Radiotherapy; Tubular carcinoma; Adenocarcinoma; Adult; Aged; Aged 80 and over; Antineoplastic Agents Hormonal; Axilla; Breast Neoplasms; Carcinoma Ductal Breast; Chemotherapy Adjuvant; Combined Modality Therapy; Female; Humans; Lymphatic Metastasis; Mastectomy; Mastectomy Segmental; Middle Aged; Neoplasm Recurrence Local; Proportional Hazards Models; Radiotherapy Adjuvant; Survival Analysis; Tamoxifen; Treatment Outcome; Oncology; SurgeryLocalOncologyChemotherapy AdjuvantLymphatic MetastasisFemaleMastectomymedicine.drugAdultmedicine.medical_specialtyAntineoplastic Agents HormonalAntineoplastic AgentsBreast NeoplasmsAdenocarcinomaBreast cancermedicineChemotherapyHumansAgedProportional Hazards ModelsChemotherapyRadiotherapyHormonalbusiness.industryCarcinomamedicine.diseaseSurvival AnalysisSurgeryRadiation therapyTamoxifenNeoplasm RecurrenceAxillaRadiotherapy AdjuvantSurgeryTubular carcinomaNeoplasm Recurrence LocalbusinessTamoxifen
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