Search results for " Retinoic Acid"

showing 10 items of 42 documents

Somatic copy number alterations are associated with EGFR amplification and shortened survival in patients with primary glioblastoma.

2019

Glioblastoma (GBM) is the most common malignant primary tumor of the central nervous system. With no effective therapy, the prognosis for patients is terrible poor. It is highly heterogeneous and EGFR amplification is its most frequent molecular alteration. In this light, we aimed to examine the genetic heterogeneity of GBM and to correlate it with the clinical characteristics of the patients. For that purpose, we analyzed the status of EGFR and the somatic copy number alterations (CNAs) of a set of tumor suppressor genes and oncogenes. Thus, we found GBMs with high level of EGFR amplification, low level and with no EGFR amplification. Highly amplified tumors showed histological features of…

0301 basic medicineMaleCancer ResearchBiopsyL-amp GB EGFR-low amplified glioblastomamedicine.disease_causewt wildtypeMYBPC3 myosin-binding protein C0302 clinical medicineHIC1 hypermethylated in cancer 1Gene duplicationIn Situ Hybridization FluorescenceIDH2 isocitrate dehydrogenase 2MutationRB-pat RB signaling pathwayEGFRvIII epidermal growth factor receptor variant number IIIPAH phenylalanine hydroxylaseGBM glioblastoma IDH-wildtype (glioblastoma multiforme primary glioblastoma).ANOVA ANalysis Of VArianceN-amp GB EGFR-no amplified glioblastomaMiddle AgedCDKN2A cyclin-dependent kinase inhibitor 2Alcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensPrognosisPrimary tumorImmunohistochemistryH-amp GB EGFR-high amplified glioblastomaErbB ReceptorsTKR-pat tyrosine-kinase receptors signaling pathway030220 oncology & carcinogenesisDisease ProgressionCDK6 cyclin-dependent kinase 6CDH1 Cadherin 1FemaleCREM cAMP response element modulatorIHC immunohistochemistryAdultOriginal articleDNA Copy Number VariationsCDKN1B cyclin-dependent kinase inhibitor 1BBiologyRARB retinoic acid receptor betaCNS central nervous systemlcsh:RC254-282IDH1 isocitrate dehydrogenase 1BCL2 B-cell cll/ lymphoma 2CNAs copy number algerationsWHO World Health Organization03 medical and health sciencesYoung Adultp53-pat p53 signaling pathwaymedicineBiomarkers TumorTMA tissue microarrayPTENHumansProtein kinase BPI3K/AKT/mTOR pathwaySurvival analysisAgedGenetic heterogeneityGene AmplificationGFAP glial fibrillary acidic proteinMLPA multiplex ligation-dependent probe amplificationmedicine.diseaseFISH fluorescence in situ hibridizationSurvival AnalysisCDKN2B cyclin-dependent kinase inhibitor 2BPTEN phosphatase and tensin homologEGFR epidermal growth factor receptorCNV-load load of copy number variations030104 developmental biologyMutationPARK2 parkinCancer researchbiology.proteinTCGA The Cancer Genome AtlasLARGE1 acetylglucosaminyltransferase-like protein 1GlioblastomaCHD7 Chromodomain Helicase DNA Binding Protein 7DAPI 4′6-diamidino-2-phenylindoleNeoplasia (New York, N.Y.)
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Vitamin A Deficiency and the Lung.

2018

Vitamin A (all-trans-retinol) is a fat-soluble micronutrient which together with its natural derivatives and synthetic analogues constitutes the group of retinoids. They are involved in a wide range of physiological processes such as embryonic development, vision, immunity and cellular differentiation and proliferation. Retinoic acid (RA) is the main active form of vitamin A and multiple genes respond to RA signalling through transcriptional and non-transcriptional mechanisms. Vitamin A deficiency (VAD) is a remarkable public health problem. An adequate vitamin A intake is required in early lung development, alveolar formation, tissue maintenance and regeneration. In fact, chronic VAD has b…

0301 basic medicineVitamincollagenLung DiseasesEpithelial-Mesenchymal Transitionextracellular matrixRetinoic acidlcsh:TX341-641Reviewepithelial–mesenchymal transitionlungExtracellular matrix03 medical and health scienceschemistry.chemical_compound0302 clinical medicineRisk Factorsretinoic acidMedicineAnimalsHumans030212 general & internal medicineVitamin AN-cadherinpulmonary diseaseNutrition and DieteticsLungbusiness.industryVitamin A DeficiencyRegeneration (biology)RetinolE-cadherinMicronutrientmedicine.diseaseVitamin A deficiency030104 developmental biologymedicine.anatomical_structureE-cadherin N-cadherin Vitamin A deficiency collagen epithelial–mesenchymal transition extracellular matrix lung pulmonary disease retinoic acid retinolchemistryImmunologyAirway Remodelingbusinesslcsh:Nutrition. Foods and food supplyFood ScienceretinolSignal Transduction
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9-cis-Retinoic acid enhances fatty acid-induced expression of the liver fatty acid-binding protein gene

1997

The role of retinoic acids (RA) on liver fatty acid- binding protein (L-FABP) expression was investigated in the well differentiated FAO rat hepatoma cell line. 9-cis-Retinoic acid (9-ci's-RA) specifically enhanced L-FABP mRNA levels in a time- and dose-dependent manner. The higher induction was found 6 h after addition of 10 -6 M 9-CK-RA in the medium. RA also enhanced further both L-FABP mRNA levels and cytosolic L-FABP protein content induced by oleic acid. The retinoid X receptor (RXR) and the peroxisome proliferator-activated receptor (PPAR), which are known to be activated, respectively, by 9-c/s-RA and long chain fatty acid (LCFA), co-operated to bind specifically the peroxisome prol…

9-cw-Retinoic acidReceptors Retinoic Acid[SDV]Life Sciences [q-bio]Receptors Cytoplasmic and NuclearPeroxisome proliferator-activated receptorMyelin P2 ProteinMicrobodiesBiochemistry0302 clinical medicineStructural BiologyTumor Cells CulturedAlitretinoinchemistry.chemical_classification0303 health sciencesChemistryFatty AcidsDrug SynergismPeroxisomeNeoplasm Proteins9-cis-Retinoic acidLiverBiochemistryFree fatty acid receptorlipids (amino acids peptides and proteins)Peroxisome proliferator-activated receptor alphaLong chain fatty acidFatty Acid-Binding Protein 7DimerizationPeroxisome proliferator-activated receptor gammaCarcinoma HepatocellularBiophysicsNerve Tissue ProteinsTretinoinRetinoid X receptorFatty Acid-Binding ProteinsLiver fatty acid-binding protein03 medical and health sciencesGeneticsAnimalsRNA MessengerMolecular Biology030304 developmental biologyFAO hepatoma cellFatty acidCell BiologyFatty acidRatsRetinoid X ReceptorsGene Expression RegulationNuclear receptorGene expressionCarrier Proteins[SDV.AEN]Life Sciences [q-bio]/Food and Nutrition030217 neurology & neurosurgeryTranscription FactorsFEBS Letters
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Central nervous system involvement at first relapse in patients with acute promyelocytic leukemia treated with all-trans retinoic acid and anthracycl…

2009

Background The prevalence of and risk factors for central nervous system recurrence in patients with acute promyelocytic leukemia are not well established and remain a controversial matter. Design and Methods Between 1996 and 2005, 739 patients with newly diagnosed acute promyelocytic leukemia enrolled in two consecutive trials (PETHEMA LPA96 and LPA99) received induction therapy-with all-trans retinoic acid and idarubicin. Consolidation therapy comprised three courses of anthracycline monochemotherapy (LPA96), with all-trans retinoic acid and reinforced doses of idarubicin in patients with an intermediate or high risk of relapse (LPA99). Central nervous system prophylaxis was not given. Re…

:Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Hydrocarbons Cyclic::Hydrocarbons Aromatic::Polycyclic Hydrocarbons Aromatic::Naphthacenes::Anthracyclines::Daunorubicin::Idarubicin [Medical Subject Headings]:Diseases::Pathological Conditions Signs and Symptoms::Pathologic Processes::Disease Attributes::Recurrence [Medical Subject Headings]Male:Named Groups::Persons::Age Groups::Adult::Middle Aged [Medical Subject Headings]idarubicinGastroenterology:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Probability::Risk::Risk Factors [Medical Subject Headings]:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]Central Nervous System NeoplasmsLeukemia Promyelocytic AcuteRecurrenceRisk FactorsCumulative incidenceAntibiotics AntineoplasticHematologyMiddle Agedall-trans retinoic acidLeukemiamedicine.anatomical_structure:Named Groups::Persons::Age Groups::Adolescent [Medical Subject Headings]Femalemedicine.drugAcute promyelocytic leukemiaAdultcentral nervous system relapsemedicine.medical_specialty:Diseases::Neoplasms::Neoplasms by Histologic Type::Leukemia::Leukemia Myeloid::Leukemia Myeloid Acute [Medical Subject Headings]AnthracyclineAdolescentCentral nervous system:Check Tags::Male [Medical Subject Headings]TretinoinNeoplasias del sistema nervioso centralCentral nervous system diseaseTretinoinInternal medicine:Named Groups::Persons::Age Groups::Adult [Medical Subject Headings]medicineIdarubicinHumans:Named Groups::Persons::Age Groups::Adult::Aged [Medical Subject Headings]Letters to the Editor:Chemicals and Drugs::Organic Chemicals::Hydrocarbons::Hydrocarbons Acyclic::Alkenes::Polyenes::Carotenoids::Retinoids [Medical Subject Headings]Leucemia promielocítica agudaAgedAntibióticos antineoplásicosbusiness.industryprognostic factors:Chemicals and Drugs::Chemical Actions and Uses::Pharmacologic Actions::Therapeutic Uses::Antineoplastic Agents::Antibiotics Antineoplastic [Medical Subject Headings]acute promyelocytic leukemiamedicine.diseaseSurgery:Diseases::Neoplasms::Neoplasms by Site::Nervous System Neoplasms::Central Nervous System Neoplasms [Medical Subject Headings]:Check Tags::Female [Medical Subject Headings]businessIdarubicin
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Acute Promyelocytic Leukemia during Pregnancy: A Systematic Review of the Literature

2020

The management of pregnant women with acute promyelocytic leukemia (APL) is a challenging situation where limited evidence-based information is available. We performed a systematic literature review to analyze the outcomes reported for both mother and fetus when APL is diagnosed during pregnancy. PubMed, Scopus and Web of Science databases were systematically searched to identify studies reporting cases of APL during pregnancy. Sixty-six articles met the eligibility criteria (53 single case reports). Ninety-two patients were eligible for induction therapy, with most them being treated with all-trans retinoic acid alone (32%) or combined with chemotherapy (43%), while the remaining patients …

Acute promyelocytic leukemiaCancer Researchmedicine.medical_specialtyAbortionchemotherapylcsh:RC254-282Article03 medical and health sciences0302 clinical medicineObstetrics and gynaecologymedicineNeonatologyPregnancyFetal viabilityRespiratory distressObstetricsbusiness.industryGestational ageacute promyelocytic leukemialcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogensmedicine.diseaseall-trans retinoic acidarsenic trioxideOncology030220 oncology & carcinogenesispregnancybusiness030215 immunologyCancers
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RORgamma-expressing Th17 cells induce murine chronic intestinal inflammation via redundant effects of IL-17A and IL-17F.

2008

Background and Aims IL-17–producing CD4 + T-helper cells (Th17) contribute to chronic autoimmune inflammation in the brain, and levels of Th17-derived cytokines increase in patients with colitis, suggesting a role in pathogenesis. We analyzed the roles of Th17 cells and the transcription factor retinoic acid receptor-related organ receptor (ROR)γ, which regulates Th17 differentiation, in chronic intestinal inflammation. Methods Using an adoptive transfer model of colitis, we compared the colitogenic potential of wild-type, interleukin-17A (IL-17A)–, IL-17F–, IL-22–, and RORγ-deficient CD4 + CD25 − T cells in RAG1-null mice. Results Adoptive transfer of IL-17A–, IL-17F–, or IL-22–deficient T…

Adoptive cell transferNeutrophilsReceptors Retinoic Acidmedicine.medical_treatmentBiologyInflammatory bowel diseasePathogenesisMiceInterferonCell MovementmedicineAnimalsIL-2 receptorColitisCells CulturedReceptors Thyroid HormoneHepatologyInterleukinsInterleukin-17GastroenterologyDendritic CellsT-Lymphocytes Helper-InducerNuclear Receptor Subfamily 1 Group F Member 3medicine.diseaseColitisAdoptive TransferMice Inbred C57BLCytokineImmunologyChronic Diseasebiology.proteinCytokinesAntibodymedicine.drugGastroenterology
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All-trans retinoic acid as adjunct to intensive treatment in younger adult patients with acute myeloid leukemia: results of the randomized AMLSG 07-0…

2016

The aim of this clinical trial was to evaluate the impact of all-trans retinoic acid (ATRA) in combination with chemotherapy and to assess the NPM1 status as biomarker for ATRA therapy in younger adult patients (18–60 years) with acute myeloid leukemia (AML). Patients were randomized for intensive chemotherapy with or without open-label ATRA (45 mg/m2, days 6–8; 15 mg/m2, days 9–21). Two cycles of induction therapy were followed by risk-adapted consolidation with high-dose cytarabine or allogeneic hematopoietic cell transplantation. Due to the open label character of the study, analysis was performed on an intention-to-treat (ITT) and a per-protocol (PP) basis. One thousand one hundred pati…

AdultMale0301 basic medicineAcute promyelocytic leukemiaOncologymedicine.medical_specialtyNPM1Adolescentmedicine.medical_treatmentTretinoinYoung Adult03 medical and health sciences0302 clinical medicineInternal medicineAntineoplastic Combined Chemotherapy ProtocolsmedicineHumansddc:610ChemotherapyAcute myeloid leukemiaHematologyAll-trans retinoic acidbusiness.industryMyeloid leukemiaInduction ChemotherapyHematologyGeneral MedicineMiddle Agedmedicine.disease3. Good healthSurgerySurvival RateTransplantationClinical trialLeukemia Myeloid AcuteTreatment Outcome030104 developmental biologyNucleophosmin-1Acute myeloid leukemia; All-trans retinoic acid; Nucleophosmin-1030220 oncology & carcinogenesisCytarabineFemaleOriginal ArticlebusinessNucleophosminFollow-Up Studiesmedicine.drug
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Retinol oxidation to retinoic acid in human thyroid glandular cells.

2014

Abstract Retinoic acid is regarded as the retinol metabolite that controls proliferation and differentiation of epithelial cells. In the present study, we investigated the potential role of xanthine dehydrogenase (XDH) in retinoic acid biosynthesis in human thyroid glandular cells (HTGC). In particular, we observed that cellular retinoids binding proteins (CRBPs) are also implicated in the biosynthetic pathway leading to retinoic acid formation in primary cultures of HTGC, as we have already reported for human mammary epithelial cells (HMEC). After partial protein purification, the enzyme responsible for retinoic acid biosynthesis was identified and quantified as XDH by immunoassay, by its …

AdultMaleXanthine DehydrogenasePrimary Cell CultureRetinoic acidThyroid GlandOxypurinolRetinoic acid receptor betaTretinoinBiologyXanthinechemistry.chemical_compoundBiosynthesisSettore BIO/10 - BiochimicaDrug DiscoveryHumansEnzyme InhibitorsVitamin AEnzyme AssaysPharmacologyImmunoassayRetinolEpithelial CellsRetinol-Binding Proteins CellularGeneral MedicineMiddle AgedXanthineUric AcidRetinoic acid receptorchemistryXanthine dehydrogenaseBiochemistryCRABPs CRBPs human glandular cells. retinoic acid biosynthesis. retinol oxidation xanthine dehydrogenaseUric acidFemaleOxidation-ReductionJournal of enzyme inhibition and medicinal chemistry
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Induction of Transglutaminase 2 by a Liver X Receptor/Retinoic Acid Receptor α Pathway Increases the Clearance of Apoptotic Cells by Human Macrophages

2009

Rationale: Liver X receptors (LXRs) are oxysterol-activated nuclear receptors that are involved in the control of cholesterol homeostasis and inflammatory response. Human monocytes and macrophages express high levels of these receptors and are appropriate cells to study the response to LXR agonists. Objective: The purpose of this study was to identify new LXR targets in human primary monocytes and macrophages and the consequences of their activation. Methods and Results: We show that LXR agonists significantly increase the mRNA and protein levels of the retinoic acid receptor (RAR)α in primary monocytes and macrophages. LXR agonists promote RARα gene transcription through binding to a spec…

Agonistmedicine.medical_specialtyReceptors Retinoic AcidPhysiologymedicine.drug_classResponse elementReceptors Cytoplasmic and NuclearApoptosisBiologyCell LinePhagocytosisGTP-Binding ProteinsInternal medicinemedicineHumansMacrophageProtein Glutamine gamma Glutamyltransferase 2ReceptorLiver X receptorLiver X ReceptorsTransglutaminasesMacrophagesRetinoic Acid Receptor alphaMacrophage ActivationAtherosclerosisOrphan Nuclear ReceptorsCell biologyDNA-Binding ProteinsRetinoic acid receptorEndocrinologyNuclear receptorRetinoic acid receptor alphaEnzyme InductionCardiology and Cardiovascular MedicineCirculation Research
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Nuclear receptors modulate the interaction of Sp1 and GC-rich DNA via ternary complex formation

2000

Binding sites for transcription factor Sp1have been implicated in the transcriptional regulation of several genes by hormones or vitamins, and here we show that a GC-rich element contributes to the retinoic acid response of the interleukin 1β promoter. To explain such observations, it has been proposed that nuclear receptors can interact with Sp1 bound to GC-rich DNA. However, evidence supporting this model has remained indirect. So far, nuclear receptors have not been detected in a complex with Sp1 and GC-rich DNA, and the expected ternary complexes in non-denaturing gels were not seen. In search for these missing links we found that nuclear receptors [retinoic acid receptor (RAR), thyroid…

Cell ExtractsTranscriptional ActivationReceptors Retinoic AcidSp1 Transcription FactorRecombinant Fusion ProteinsReceptors Cytoplasmic and NuclearTretinoinRetinoic acid receptor betaBiologyRetinoid X receptorLigandsResponse ElementsTransfectionModels BiologicalBiochemistryAntibodiesCell LineSubstrate SpecificityAnimalsPromoter Regions GeneticMolecular BiologyNuclear receptor co-repressor 1Nuclear receptor co-repressor 2Binding SitesReceptors Thyroid HormoneDNACell BiologyRetinoic acid receptor gammaRetinoid X receptor gammaGC Rich SequenceProtein Structure TertiaryNuclear receptor coactivator 1Retinoic acid receptorDrosophila melanogasterEcdysteroneRetinoid X ReceptorsOligodeoxyribonucleotidesBiochemistryReceptors CalcitriolThermodynamicsResearch ArticleInterleukin-1Protein BindingTranscription FactorsBiochemical Journal
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