0000000000396802

AUTHOR

Alejandro Pérez-fidalgo

0000-0003-3568-4345

showing 12 related works from this author

Candidate Gene and Genome-Wide Association Studies for Circulating Leptin Levels Reveal Population and Sex-Specific Associations in High Cardiovascul…

2019

Leptin is a hormone crucial in the regulation of food intake and body-weight maintenance. However, the genes and gene variants that influence its plasma levels are still not well known. Results of studies investigating polymorphisms in candidate genes have been inconsistent, and, in addition, very few genome-wide association studies (GWAS) have been undertaken. Our aim was to investigate the genes and gene variants most associated with plasma leptin concentrations in a high-cardiovascular-risk Mediterranean population. We measured plasma leptin in 1011 men and women, and analyzed the genetic factors associated using three approaches: (1) Analyzing the single nucleotide polymorphisms (SNPs) …

Genetic MarkersLeptinMale0301 basic medicineobesityCandidate genePopulation030209 endocrinology & metabolismGenome-wide association studySingle-nucleotide polymorphismBiologyGenetic polymorphismsleptinPolymorphism Single NucleotideFTO geneArticleMediterranean population03 medical and health sciencesSex Factors0302 clinical medicineLeptinasexHumansSNPgeneticsGenetic Predisposition to Diseaseeducationleptin receptorAgedGenetic associationGeneticseducation.field_of_studygenome-wide association studyNutrition and DieteticsLeptin receptorMediterranean RegionPolimorfisme genèticCross-Sectional Studies030104 developmental biologyCardiovascular DiseasesSpainObesitatFemaleheterogeneitypolymorphismsFood ScienceNutrients
researchProduct

Chronological Age Interacts with the Circadian Melatonin Receptor 1B Gene Variation, Determining Fasting Glucose Concentrations in Mediterranean Popu…

2020

Gene-age interactions have not been systematically investigated on metabolic phenotypes and this modulation will be key for a better understanding of the temporal regulation in nutrigenomics. Taking into account that aging is typically associated with both impairment of the circadian system and a decrease in melatonin secretion, we focused on the melatonin receptor 1B (MTNR1B)-rs10830963 C&gt

Blood GlucoseMale0301 basic medicinePhysiologyType 2 diabetestype-2 diabetesDiabetis no-insulinodependentMediterranean population0302 clinical medicineRisk FactorsPolymorphism (computer science)MedicineNon-insulin-dependent diabetesmelatonin receptorAged 80 and overeducation.field_of_studyNutrition and DieteticsMediterranean RegionAge FactorsDiabetis en l'embaràsFastingMiddle AgedGestational diabetesMTNR1B polymorphismCohortFemalepregnancywomengestational diabeteslcsh:Nutrition. Foods and food supplyage-interactionhormones hormone substitutes and hormone antagonistsAdultDiabetes riskAdolescentPopulationlcsh:TX341-641030209 endocrinology & metabolismPolymorphism Single NucleotideRisk AssessmentArticleYoung Adult03 medical and health sciencesDiabetes mellitusHumanseducationAgedRetrospective StudiesReceptor Melatonin MT2business.industrymedicine.diseaseCross-Sectional Studies030104 developmental biologyDiabetes Mellitus Type 2Melatonin receptor 1BSpainheterogeneitybusinessDiabetes in pregnancyfasting glucoseFood ScienceNutrients
researchProduct

Phase I Pharmacokinetic/Pharmacodynamic Study of MLN8237, an Investigational, Oral, Selective Aurora A Kinase Inhibitor, in Patients with Advanced So…

2012

Abstract Purpose: Aurora A kinase (AAK) is a key regulator of mitosis and a target for anticancer drug development. This phase I study investigated the safety, pharmacokinetics, and pharmacodynamics of MLN8237 (alisertib), an investigational, oral, selective AAK inhibitor, in 59 adults with advanced solid tumors. Experimental Design: Patients received MLN8237 once daily or twice daily for 7, 14, or 21 consecutive days, followed by 14 days recovery, in 21-, 28-, or 35-day cycles. Dose-limiting toxicities (DLT) and the maximum-tolerated dose (MTD) for the 7- and 21-day schedules were determined. Pharmacokinetic parameters were derived from plasma concentration–time profiles. AAK inhibition in…

AdultMaleCancer ResearchNeutropeniaMaximum Tolerated DoseBiopsyAurora A kinaseAntineoplastic AgentsProtein Serine-Threonine KinasesPharmacologyNeutropeniachemistry.chemical_compoundPharmacokineticsAurora KinasesNeoplasmsBiopsyHumansMedicineStomatitisAgedNeoplasm StagingStomatitismedicine.diagnostic_testbusiness.industryCancerAzepinesMiddle Agedmedicine.diseasePyrimidinesOncologychemistryPharmacodynamicsAlisertibFemalebusinessClinical Cancer Research
researchProduct

Reply to ‘Comment on: management of chemotherapy extravasation: ESMO–EONS clinical practice guidelines'

2013

Clinical Practicemedicine.medical_specialtyChemotherapyOncologybusiness.industrymedicine.medical_treatmentmedicineMEDLINEHematologyIntensive care medicinebusinessExtravasationSurgeryAnnals of Oncology
researchProduct

NOTCH signalling in ovarian cancer angiogenesis

2020

The Notch signalling pathway is involved in the new vessel formation process by regulating tip and stalk cells, which are key cells in the sprout formation. This process is essential in both normal ovary and cancer angiogenesis and is regulated by Notch-VEGF crosstalk. Furthermore, Notch has been linked in ovary with stem cell maintenance and epithelial mesenchymal transition processes. Dysregulation of the Notch pathway is frequent in ovarian cancer (OC) and it has been associated with impaired survival and advanced stages or lymph node involvement. Notch also plays a role in chemoresistance to platinum. In this context, this pathway has emerged as an attractive target for precision medici…

0301 basic medicineDemcizumabAngiogenesisNotch signaling pathway610 Medicine & healthContext (language use)General MedicineBiologymedicine.disease10174 Clinic for Gynecology03 medical and health sciencesReview Article on Ovarian Cancer: State of the Art and Perspectives of Clinical Research030104 developmental biology0302 clinical medicine030220 oncology & carcinogenesismedicineCancer researchEpithelial–mesenchymal transitionStem cellOvarian cancerGamma secretaseAnnals of Translational Medicine
researchProduct

Removal of primary tumor improves survival in metastatic breast cancer. Does timing of surgery influence outcomes?

2010

Resection of intact primary tumor is controversial in metastatic breast cancer patients. The aim of this study is to review the impact of surgical resection of primary tumor on overall survival and to assess the role of timing of surgery on survival rates.208 patients with metastatic breast cancer diagnosed between 1982 and 2005 in the Hospital Clinico of Valencia (Spain) were analysed. Exclusion criteria were age80, PS 3-4, Charlson score 3 or follow-up90 days. 123 of these underwent surgery and 85 did not. In order to assess the role of timing, the "surgery" cohort was divided into two sub-groups: "before" (n = 78) or "after" (n = 45) diagnosis of disseminated disease.In the surgery group…

medicine.medical_specialtyTime FactorsBreast surgerymedicine.medical_treatmentBreast NeoplasmsmedicineHumansNeoplasm MetastasisMastectomySurvival analysisNeoplasm StagingRetrospective StudiesUnivariate analysisPerformance statusbusiness.industryCarcinoma Ductal BreastGeneral MedicineMiddle Agedmedicine.diseaseDebulkingSurvival AnalysisPrimary tumorMetastatic breast cancerSurgeryCarcinoma LobularTreatment OutcomeSpainFemaleSurgerybusinessMastectomyThe Breast
researchProduct

Determination of somatic oncogenic mutations linked to target-based therapies using MassARRAY technology

2016

Somatic mutation analysis represents a useful tool in selecting personalized therapy. The aim of our study was to determine the presence of common genetic events affecting actionable oncogenes using a MassARRAY technology in patients with advanced solid tumors who were potential candidates for target-based therapies. The analysis of 238 mutations across 19 oncogenes was performed in 197 formalin-fixed paraffin-embedded samples of different tumors using the OncoCarta Panel v1.0 (Sequenom Hamburg, Germany). Of the 197 specimens, 97 (49.2%) presented at least one mutation. Forty-nine different oncogenic mutations in 16 genes were detected. Mutations in KRAS and PIK3CA were detected in 40/97 (4…

AdultMale0301 basic medicineOncologymedicine.medical_specialtyColorectal cancersomatic oncogene mutationsDNA Mutational Analysismedicine.disease_cause03 medical and health sciences0302 clinical medicineGermline mutationNeoplasmsInternal medicineHumansMedicineoncocartaPrecision MedicineGeneAgedAged 80 and overGeneticsMutationbusiness.industryHigh-Throughput Nucleotide Sequencingpersonalized medicineMiddle AgedPrecision medicinemedicine.diseaseClinical trial030104 developmental biologyOncologySpectrometry Mass Matrix-Assisted Laser Desorption-Ionization030220 oncology & carcinogenesisFemalePersonalized medicineKRASbusinessResearch PaperOncotarget
researchProduct

Deregulation of ARID1A, CDH1, cMET and PIK3CA and target-related microRNA expression in gastric cancer.

2015

Genetic and epigenetic alterations play an important role in gastric cancer (GC) pathogenesis. Aberrations of the phosphatidylinositol-3-kinase signaling pathway are well described. However, emerging genes have been described such as, the chromatin remodeling gene ARID1A. Our aim was to determine the expression levels of four GC-related genes, ARID1A, CDH1, cMET and PIK3CA, and 14 target-related microRNAs (miRNAs). We compared mRNA and miRNA expression levels among 66 gastric tumor and normal adjacent mucosa samples using quantitative real-time reverse transcription PCR. Moreover, ARID1A, cMET and PIK3CA protein levels were assessed by immunohistochemistry (IHC). Finally, gene and miRNAs as…

MaleARID1AClass I Phosphatidylinositol 3-KinasesReal-Time Polymerase Chain ReactionCDH1Epigenesis GeneticPhosphatidylinositol 3-KinasesAntigens CDStomach NeoplasmsGene expressionmicroRNAmedicineBiomarkers TumorHumansRNA MessengerAgedbiologyReverse Transcriptase Polymerase Chain ReactionGene Expression Profilinggastric cancerCancerNuclear ProteinsbiomarkersMiddle AgedProto-Oncogene Proteins c-metmedicine.diseaseCadherinsMolecular biologyImmunohistochemistryChromatinGene expression profilingReverse transcription polymerase chain reactionDNA-Binding ProteinsGene Expression Regulation NeoplasticMicroRNAsReal-time polymerase chain reactionmicrorna expressionOncologyGastric Mucosabiology.proteingene expressionFemaleTranscription FactorsResearch PaperOncotarget
researchProduct

In the literature: June 2018

2018

Poly (ADP-ribose) polymerase (PARP) inhibitors (PARPi) are a highly active family of compounds that have changed the scenario in ovarian and human epidermal growth factor receptor 2 (HER2) non-amplified breast cancer management in the recent years. Despite impressive clinical activity, a prolonged treatment with PARPi is frequently associated with acquired resistance to this therapy. The identification of mechanisms and strategies to overcome resistance are crucial. Bromodomain containing 4 (BRD4) is a member of the bromodomain and extraterminal (BET) protein family that facilitates oncogenic transcription. BRD4 is frequently amplified in high-grade serous ovarian cancer (HGSOC) and can be …

Cancer ResearchBRD4ARID1AliteratureRAD51BiologyNewsBromodomainOncologyCancer cellCancer researchbiology.proteinPTENEctopic expression1506PI3K/AKT/mTOR pathwayESMO Open
researchProduct

Treatment of HER2 positive advanced breast cancer with T-DM1: A review of the literature

2014

Abstract Background Trastuzumab emtansine (T-DM1), a new agent developed for the treatment of HER2-positive breast cancer, is an antibody-drug conjugate with a complex compound obtained by the conjugation of trastuzumab, a stable thioether linker, and the potent cytotoxic drug maytansine-derivate(DM1), which inhibits cell division and induces cell death. Field of study PubMed database, ESMO, ASCO, San Antonio Breast Cancer Symposium Meeting abstracts and clinicaltrials.gov were searched using the terms “Anti-HER2 treatment breast cancer and trastuzumab emtansine (T-DM1) “; papers considered relevant for the aim of this review were selected. Findings/results The phase I trials have determine…

0301 basic medicineOncologymedicine.medical_specialtyReceptor ErbB-2Antineoplastic AgentsBreast NeoplasmsAdo-Trastuzumab EmtansineAntibodies Monoclonal Humanized03 medical and health scienceschemistry.chemical_compound0302 clinical medicineBreast cancerTrastuzumabInternal medicineHumansMedicineMaytansineProgression-free survivalNeoplasm Metastasisskin and connective tissue diseasesTaxanebusiness.industryCancerHematologyTrastuzumabmedicine.diseaseMetastatic breast cancerClinical trial030104 developmental biologyClinical Trials Phase III as TopicOncologychemistryTrastuzumab emtansine030220 oncology & carcinogenesisDisease ProgressionFemaleNeoplasm Recurrence Localbusinessmedicine.drugCritical Reviews in Oncology/Hematology
researchProduct

A First-in-Human Phase I Study of the ATP-Competitive AKT Inhibitor Ipatasertib Demonstrates Robust and Safe Targeting of AKT in Patients with Solid …

2016

Abstract Activation of AKT signaling by PTEN loss or PIK3CA mutations occurs frequently in human cancers, but targeting AKT has been difficult due to the mechanism-based toxicities of inhibitors that target the inactive conformation of AKT. Ipatasertib (GDC-0068) is a novel selective ATP-competitive small-molecule inhibitor of AKT that preferentially targets active phosphorylated AKT (pAKT) and is potent in cell lines with evidence of AKT activation. In this phase I study, ipatasertib was well tolerated; most adverse events were gastrointestinal and grade 1–2 in severity. The exposures of ipatasertib ≥200 mg daily in patients correlated with preclinical TGI90, and pharmacodynamic studies co…

AdultMale0301 basic medicineProto-Oncogene Proteins c-aktAdministration OralPharmacologyIpatasertibDrug Administration SchedulePiperazines03 medical and health sciences0302 clinical medicineCell Line TumorNeoplasmsHumansPTENMedicineProtein Kinase InhibitorsProtein kinase BPI3K/AKT/mTOR pathwayAgedbiologybusiness.industryMiddle AgedXenograft Model Antitumor AssaysSmall moleculePyrimidines030104 developmental biologyOncologyCell culture030220 oncology & carcinogenesisPharmacodynamicsbiology.proteinFemalebusinessProto-Oncogene Proteins c-akt
researchProduct

Melanoma of unknown primary: New perspectives for an old story

2021

Melanoma of unknown primary site (MUP) comprises 3-4 % of all melanomas. It mostly presents in lymph nodes (LNs), followed by subcutaneous sites, and visceral organs; nevertheless, there is a trend of increase in the relative incidence of visceral counterpart in recent years. Spontaneous regression of the primary lesion is a well-established theory, based on the evidence that melanoma can undergo regression at the primary site. MUP and stage-matched melanoma of known primary site (MKP) share similar prognostic factors. The survival rate of patients with MUP has been compared to those with stage-matched MKP. Multiple studies conducted before the era of novel therapy with immune checkpoint or…

0301 basic medicineOncologymedicine.medical_specialtymedicine.medical_treatment2720 Hematology610 Medicine & healthTargeted therapy03 medical and health sciences0302 clinical medicineInternal medicineEpidemiologymedicineHumansMelanomaSurvival rateHematologybusiness.industryIncidenceMelanomaIncidence (epidemiology)General MedicineHematologyImmunotherapymedicine.disease10174 Clinic for GynecologyImmune checkpointSurvival Rate030104 developmental biologyOncology030220 oncology & carcinogenesisNeoplasms Unknown Primary2730 OncologyLymph NodesGeriatrics and GerontologybusinessCritical Reviews in Oncology/Hematology
researchProduct