Search results for "NEOPLASIA"

showing 10 items of 177 documents

Rol del complejo RUNX1-CBF-β/HIPK2/p300/p53 en la evolución leucémica de las neoplasias mieloproliferativas crónicas

2019

Las neoplasias mieloproliferativas crónicas (NMPs) son procesos cancerígenos en los que se produce una expansión clonal de una o varias poblaciones de progenitores hematopoyéticos de estirpe mieloide. En las fases iniciales de la enfermedad, éstos presentan una adecuada diferenciación celular, lo que conlleva una descompensación final de los diferentes tipos celulares en médula ósea y sangre periférica y la consiguiente aparición de una serie de síntomas asociados que pueden llegar a producir importantes citopenias o complicaciones vasculares. A pesar de que las NMPs pueden mantenerse relativamente controladas en su fase crónica mediante un tratamiento adecuado, éstas patologías tienen una …

EP300RUNX1leucemogénesisMFapoptosisPVHIPK2leucemia mieloide:CIENCIAS DE LA VIDA [UNESCO]proliferaciónNeoplasias mieloproliferativasUNESCO::CIENCIAS DE LA VIDAhematopoyesisciclo celularTP53NMPsLMCCBF-βTE

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Adenocarcinoma Polimorfo de Bajo Grado de fosa nasal

2005

Se presenta un inusual caso de Adenocarcinoma Polimorfo de Bajo Grado en estadio IV (T4N2CMx) localizado en la fosa nasal con extensión hacia región pterigoidea. El tumor primario fue tratado mediante una resección del mismo a través una osteotomía de maxilar superior tipo Lefort I y a nivel cervical se realizó un vaciamiento ganglionar cervical supraomohioideo homolateral. Posteriormente recibió tratamiento coadyuvante con radioterapia postoperatoria. An unusual case of a T4N2CMx polymorphous low grade adenocarcinoma located in the nasal fossae and extending to the pterygoid area is presented. The primary tumor was excised through a Lefort I maxillotomy and the neck was managed with a supr…

neoplasia fosa nasalGlándulas salivares menoresneoplasias glándulas salivaresUNESCO::CIENCIAS MÉDICASOdontologíaadenocarcinoma polimorfo de bajo grado:CIENCIAS MÉDICAS [UNESCO]Ciencias de la salud

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Metilazione del DNA in artrite reumatoide

2005

Lo stato di metilazione del DNA genomico e del gene PTHrP è stato valutato con tecniche molecolari e citogenetiche in artrite reumatoide (AR), patologia autoimmune caratterizzata anche da alta incidenza di linfomi e da ipercalcemia per overespressione del gene PTHrP. La metilazione del DNA, infatti, ha un ruolo critico nello sviluppo delle malattie neoplastiche; il gene PTHrP avendo tre promotori uno dei quali contiene un’isola CpG è un buon candidato per la deregolazione da alterato pattern di metilazione locale. Le indagini sulla metilazione genomica, condotte su DNA estratto da sangue periferico di pazienti e di donatori e amplificato in reazioni di Methylation-Sensitive Arbitrarily Prim…

Settore BIO/18 - Geneticainstead chromosomes of controls were almost uniformly decorated by brilliant grains. Studies on methylation of PTHrP gene promoter 2 performed on five CpG island internal sites using the Methylation-Sensitive Restriction Endonuclease Multiplex (MSREM)-PCR showed that one of the sites nearest the trascription starting point is heavy methylated in a significantly high number of RA patients. Thus RA seems to be characterized by genomewide hypomethylation associated with local hypermethylation like the most part of tumors. This result raises the possibility that susceptibility to lymphomas is related to abnormal DNA methylation levels and suggests the opportunity to evaluate the DNA methylation status in RA patientin fact the demethylating therapies together with diet and life style can act towards an increase of tumor risk. Future studies using a larger number of subjects could confirm these findings.Rheumatoid Arthritis (RA) is a chronic multisystem inflammatory disease characterized by high recurrence of lymphomas as well as hypercalcemia due to PTHrP overexpression. Because of DNA methylation plays a critical role in development of neoplasias we determined in RA patients the global DNA methylation status and local methylation pattern of the CpG island of one of the three promoters of PTHrP gene utilizing molecular and cytogenetic techniques. Investigations performed on DNA from peripheral blood of patients and donors amplified by Methylation-Sensitive Arbitrarily Primed (MeS-AP)-PCR indicated that RA is strongly associated with global DNA hypomethylation. Similarly chromosomal DNA methylation pattern analysis by indirect immunofluorescence technique with anti 5-methylcitosine antibody showed all peripheral lymphocyte metaphases from RA patients with chromosomes weakly fluorescent without discrete grain

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Chromoendoscopy in Inflammatory Bowel Disease

2012

Chromoendoscopy with methylene blue or indigo carmine significantly increases the diagnostic yield of finding intraepithelial neoplasia in patients with longstanding colitis. The number needed to treat is 14 for panchromoendoscopy to identify 1 additional patient with dysplasia. Chromoendoscopy can greatly facilitate the identification of flat lesions harboring intraepithelial neoplasia. Chromoendoscopy can guide biopsies and clearly reduces the amount of biopsies that are needed per patient. Magnifying endoscopy or CLE are additional techniques, which can be used in conjunction with chromoendoscopy to further reduce the amount of biopsies and to further increase the diagnostic yield. Chrom…

Adenomamedicine.medical_specialtyIntraepithelial neoplasiamedicine.diagnostic_testbusiness.industryfungiGastroenterologymedicine.diseaseGastroenterologyUlcerative colitisInflammatory bowel diseaseEndoscopy GastrointestinalEndoscopyChromoendoscopyDysplasiaInternal medicinePractice Guidelines as TopicEndomicroscopyHumansMedicineColitis UlcerativeColitisColorectal NeoplasmsColoring AgentsbusinessGastroenterology Clinics of North America

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EZH2 mutations are frequent and represent an early event in follicular lymphoma

2013

Gain of function mutations in the H3K27 methyltransferase EZH2 represent a promising therapeutic target in germinal center lymphomas. In this study, we assessed the frequency and distribution of EZH2 mutations in a large cohort of patients with follicular lymphoma (FL) (n = 366) and performed a longitudinal analysis of mutation during the disease progression from FL to transformed FL (tFL) (n = 33). Mutations were detected at 3 recurrent mutation hot spots (Y646, A682, and A692) in 27% of FL cases with variant allele frequencies (VAF) ranging from 2% to 61%. By comparing VAF of EZH2 with other mutation targets (CREBBP, MLL2, TNFRSF14, and MEF2B), we were able to distinguish patients harbori…

endocrine systemTime FactorsMethyltransferasemedicine.medical_treatmentDNA Mutational AnalysisImmunologyFollicular lymphomaKaplan-Meier Estimatemacromolecular substancesBiologymedicine.disease_causeBiochemistryTargeted therapyCohort StudiesGene Frequencyhemic and lymphatic diseasesBiomarkers TumormedicineHumansEnhancer of Zeste Homolog 2 ProteinLymphoma FollicularAllele frequencyMutationLymphoid NeoplasiaMEF2 Transcription FactorsGene Expression ProfilingEZH2Polycomb Repressive Complex 2Germinal centerCell BiologyHematologymedicine.diseaseCREB-Binding ProteinLymphomaMutationDisease ProgressionCancer researchReceptors Tumor Necrosis Factor Member 14Blood

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Duodenal perforation as presentation of gastric neuroendocrine tumour: A case report

2020

Highlights • Gastric neuroendocrine neoplasms (g-NENs) represent the most frequent digestive NENs and are increasingly recognized thanks to diffusion of upper gastrointestinal endoscopy. • g-NENs can be sporadic or associated with multiple endocrine neoplasia type 1 (MEN-1) and present with a functional Zollinger-Ellison syndrome. • We described a case of a 60 years old Caucasian male came to emergency room with diffuse abdominal pain and leukocytosis on blood tests. • At the level of the pyloric portion we found irregularly thickened walls associated with a small fluid collection and bubbles of free air. On exploratory laparoscopy we found a large perforation (about 5 cm of size) in the fi…

medicine.medical_specialtyPerforation (oil well)Case ReportNeuroendocrine tumorsAsymptomaticGastroenterologyExploratory laparoscopyGastric perforation03 medical and health sciences0302 clinical medicineInternal medicinemedicineMultiple endocrine neoplasiaDuodenal PerforationGastrinomabusiness.industrymedicine.diseasedigestive system diseasesZollinger-Ellison syndrome030220 oncology & carcinogenesisGastric NETEmergency surgery030211 gastroenterology & hepatologySurgerymedicine.symptombusinessCarcinoid syndrome

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Cancer mortality inequalities in urban areas: a Bayesian small area analysis in Spanish cities

2011

incluye "Erratum to: Cancer mortality inequalities in urban areas: a Bayesian small area analysis in Spanish cities" BACKGROUND: Intra-urban inequalities in mortality have been infrequently analysed in European contexts. The aim of the present study was to analyse patterns of cancer mortality and their relationship with socioeconomic deprivation in small areas in 11 Spanish cities. METHODS: It is a cross-sectional ecological design using mortality data (years 1996-2003). Units of analysis were the census tracts. A deprivation index was calculated for each census tract. In order to control the variability in estimating the risk of dying we used Bayesian models. We present the RR of the censu…

MaleUrban PopulationEstudios transversalesCross-sectional studyEspaña:Health Care::Environment and Public Health::Public Health::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cross-Sectional Studies [Medical Subject Headings]Business Management and Accounting(all)Disparidades en el estado de saludPoblación urbanaHealth informatics:Health Care::Population Characteristics::Population::Urban Population [Medical Subject Headings]NeoplasmsHuman geographyEpidemiologyCàncerUrban areasSocioeconomicsSmall-Area Analysismedia_common:Geographicals::Geographic Locations::Europe::Spain [Medical Subject Headings]Geography:Diseases::Neoplasms [Medical Subject Headings]CensusNeoplasiasGeography:Health Care::Environment and Public Health::Public Health::Epidemiologic Methods::Statistics as Topic::Probability::Bayes Theorem [Medical Subject Headings]lcsh:R858-859.7EnfermeríaFemaleRisk assessmentComputer Science(all)Riskmedicine.medical_specialtyGeneral Computer ScienceInequalitymedia_common.quotation_subjectHealth geographyeducationBayesian probabilityMedi ambientCancer mortalitylcsh:Computer applications to medicine. Medical informaticsRisk AssessmentCàncer -- MortalitatCiutatsMortalitatmedicineConfidence IntervalsTeorema de BayesHumansCancer -- MortalitySocioeconomic statusPovertyPovertybusiness.industryPublic healthResearchPublic Health Environmental and Occupational HealthCorrection:Health Care::Environment and Public Health::Public Health::Epidemiologic Measurements::Demography::Health Status::Health Status Disparities [Medical Subject Headings]Bayes TheoremHealth Status DisparitiesGeneral Business Management and AccountingSocioeconomic deprivationBayesian statistical decisionCross-Sectional StudiesEstadística bayesianaSocioeconomic FactorsSpainInequalitiesbusinessDemographyInternational Journal of Health Geographics

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Impact of BCR-ABL1 Transcript Type on Response, Treatment-Free Remission Rate and Survival in Chronic Myeloid Leukemia Patients Treated with Imatinib

2021

Chronic myeloid leukemia; BCR-ABL1 transcripts; Response to imatinib Leucemia mieloide crónica; Transcripciones de BCR-ABL1; Respuesta al imatinib Leucèmia mieloide crònica; Transcripcions BCR-ABL1; Resposta a imatinib The most frequent BCR-ABL1-p210 transcripts in chronic myeloid leukemia (CML) are e14a2 and e13a2. Imatinib (IM) is the most common first-line tyrosine–kinase inhibitor (TKI) used to treat CML. Some studies suggest that BCR-ABL1 transcript types confer different responses to IM. The objective of this study was to correlate the expression of e14a2 or e13a2 to clinical characteristics, cumulative cytogenetic and molecular responses to IM, acquisition of deep molecular response …

Oncologymedicine.medical_specialtyrelapse-free survivalLeucèmia mieloide<i>BCR</i><i>-ABL1</i> transcriptsLeucèmia mieloide crònica:Organic Chemicals::Amides::Benzamides::Imatinib Mesylate [CHEMICALS AND DRUGS]survivalArticleOncología:Neoplasms::Neoplasms by Histologic Type::Leukemia::Leukemia Myeloid::Leukemia Myelogenous Chronic BCR-ABL Positive [DISEASES]03 medical and health sciencesBcr abl10302 clinical medicineAnàlisi de supervivència (Biometria)chronic myeloid leukemiaInternal medicinehemic and lymphatic diseasesresponse to imatinibmedicineOverall survivalHematologíaCumulative incidenceBCR-ABL1 transcriptsGene transcriptbusiness.industryRMyeloid leukemiaImatinibGeneral MedicineExpressió gènica:técnicas de investigación::métodos epidemiológicos::estadística como asunto::análisis de supervivencia [TÉCNICAS Y EQUIPOS ANALÍTICOS DIAGNÓSTICOS Y TERAPÉUTICOS]Myeloid leukemia030220 oncology & carcinogenesisMolecular ResponseImatinib:compuestos orgánicos::amidas::benzamidas::mesilato de imatinib [COMPUESTOS QUÍMICOS Y DROGAS]MedicineRemission rateGene expression:Health Care Quality Access and Evaluation::Quality of Health Care::Health Care Evaluation Mechanisms::Statistics as Topic::Survival Analysis [HEALTH CARE]business:neoplasias::neoplasias por tipo histológico::leucemia::leucemia mieloide::leucemia mielogenosa crónica BCR-ABL positiva [ENFERMEDADES]030215 immunologymedicine.drugdiscontinuation

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Melatonin Targets Metabolism in Head and Neck Cancer Cells by Regulating Mitochondrial Structure and Function.

2021

This study was funded by grants from the Ministerio de Economia, Industria y Competitividad y por el Fondo de Desarrollo Regional FEDER, Spain nº SAF2013-49019, SAF2017-85903-P, and from the Consejería de Innovación, Ciencia y Empresa, Junta de Andalucía (P07- CTS- 03135, P10- CTS- 5784, and CTS- 101), Spain. J.F. and L.M. have FPU fellowships from the Ministerio de Educación Cultura y Deporte, Spain. C.R.S. was a schorlarship holder from the Plan Propio de Investigación of the University of Granada.

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The Transcription Factors TBX2 and TBX3 Interact with Human Papillomavirus 16 (HPV16) L2 and Repress the Long Control Region of HPVs

2013

ABSTRACT The minor capsid protein L2 of human papillomaviruses (HPVs) has multiple functions during the viral life cycle. Although L2 is required for effective invasion and morphogenesis, only a few cellular interaction partners are known so far. Using yeast two-hybrid screening, we identified the transcription factor TBX2 as a novel interaction partner of HPV type 16 (HPV16) L2. Coimmunoprecipitations and immunofluorescence analyses confirmed the L2-TBX2 interaction and revealed that L2 also interacts with TBX3, another member of the T-box family. Transcription of the early genes during HPV infection is under the control of an upstream enhancer and early promoter region, the long control r…

Transcription GeneticImmunologyBiologyCervical intraepithelial neoplasiaVirus ReplicationMicrobiologyViral life cycleTranscription (biology)VirologyTwo-Hybrid System TechniquesGene expressionProtein Interaction MappingmedicineHumansImmunoprecipitationGeneTranscription factorGeneticsHuman papillomavirus 16virus diseasesPromoterOncogene Proteins Viralmedicine.diseasefemale genital diseases and pregnancy complicationsGenome Replication and Regulation of Viral Gene ExpressionMicroscopy FluorescenceInsect ScienceHost-Pathogen InteractionsCapsid ProteinsT-Box Domain ProteinsChromatin immunoprecipitationHeLa Cells

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