Search results for "Subfamily G"

showing 5 items of 25 documents

Cholesterol and saturated fat intake determine the effect of polymorphisms at ABCG5/ABCG8 genes on lipid levels in children.

2006

Purpose: Analysis of mutations in genes of the cholesterol metabolic pathway has not completely explained the interindividual variability of blood cholesterol concentrations attributed to gene–nutrient interactions. Thus, we analyzed polymorphisms in the ABCG5 and ABCG8 genes, involved in the regulation of intestinal cholesterol absorption, with special interest in a potential interaction with diet to determine lipid levels. Methods: The polymorphisms ABCG5 C1950G (Gln604Glu) and ABCG8 C1895T (Ala640Val) were determined by polymerase chain reaction and restriction analysis in 1227 healthy school children, aged 6 to 8 years. Results: No significant differences were found in blood lipid level…

Malemedicine.medical_specialtyApolipoprotein BLipoproteinsBlood lipidsABCG8Cholesterol Dietarychemistry.chemical_compoundGene FrequencyPolymorphism (computer science)Internal medicineSurveys and QuestionnairesGenotypemedicineHumansATP Binding Cassette Transporter Subfamily G Member 5ChildGenetics (clinical)GeneticsPolymorphism GeneticbiologyBase SequenceCholesterolATP Binding Cassette Transporter Subfamily G Member 8DNADietary FatsLipidsEndocrinologychemistryABCG5biology.proteinIntestinal cholesterol absorptionlipids (amino acids peptides and proteins)ATP-Binding Cassette TransportersFemaleGenetics in medicine : official journal of the American College of Medical Genetics
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Multiple Pluripotent Stem Cell Markers in Human Anaplastic Thyroid Cancer: The Putative Upstream Role of SOX2

2013

Anaplastic thyroid carcinoma (ATC) is a rare and aggressive endocrine tumor with highly undifferentiated morphology. It has been suggested that cancer stem cells (CSCs) might play a central role in ATC. The objectives of this study were (i) to characterize CSCs from ex vivo ATC specimens by investigating the expression of several pluripotent stem cell markers, and (ii) to evaluate in vitro drug resistance modifications after specific CSC transcription factor switch-off.In ex vivo experiments, eight formalin-fixed, paraffin-embedded ATC specimens were analyzed by reverse-transcription and real-time quantitative PCR and immunohistochemistry. In in vitro experiments using ATC SW1736 cells, the…

Pluripotent Stem Cellscongenital hereditary and neonatal diseases and abnormalitiesEndocrinology Diabetes and MetabolismDown-RegulationBiologyThyroid Carcinoma AnaplasticAnaplastic thyroid cancer cancer stem cell SOX-2Settore MED/13 - EndocrinologiaThyroid carcinomaKruppel-Like Factor 4EndocrinologySOX2Cancer stem cellCell Line TumormedicineATP Binding Cassette Transporter Subfamily G Member 2HumansNeoplasmThyroid NeoplasmsAnaplastic thyroid cancerInduced pluripotent stem cellHomeodomain ProteinsSOXB1 Transcription FactorsNanog Homeobox ProteinNanog Homeobox ProteinThyroid Cancer and Nodulesmedicine.diseaseNeoplasm ProteinsUp-RegulationDoxorubicinDrug Resistance NeoplasmCell cultureNeoplastic Stem CellsCancer researchATP-Binding Cassette TransportersCisplatinOctamer Transcription Factor-3Thyroid
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Multipotential nestin and Isl-1 positive mesenchymal stem cells isolated from human pancreatic islets.

2006

Mesenchymal cells in the developing pancreas express the neural stem cell marker nestin and the transcription factor islet-1 (Isl-1). Using defined culture conditions we isolated on a single cell basis nestin producing cells from human pancreatic islets. These cells were immortalized with lentiviral vectors coding for telomerase and mBmi. They are positive for Isl-1 and nestin and have the potential to adopt a pancreatic endocrine phenotype with expression of critical transcription factors including Ipf-1, Isl-1, Ngn-3, Pax4, Pax6, Nkx2.2, and Nkx6.1 as well as the islet hormones insulin, glucagon, and somatostatin. In addition, they can be differentiated into human albumin producing cells …

endocrine systemLIM-Homeodomain ProteinsBiophysicsCell Culture TechniquesNerve Tissue ProteinsBiologyBiochemistryNestinIslets of LangerhansIntermediate Filament ProteinsNeurosphereAlbuminsmedicineAdipocytesATP Binding Cassette Transporter Subfamily G Member 2HumansMolecular BiologyStem cell transplantation for articular cartilage repairHomeodomain ProteinsNeuronsOsteoblastsPancreatic isletsMesenchymal stem cellLentivirusNuclear ProteinsCell DifferentiationMesenchymal Stem CellsCell BiologyNestinNeural stem cellNeoplasm Proteinsmedicine.anatomical_structureHomeobox Protein Nkx-2.2Cancer researchPAX4ATP-Binding Cassette TransportersPancreasTranscription FactorsBiochemical and biophysical research communications
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Relative expression of cholesterol transport-related proteins and inflammation markers through the induction of 7-ketosterol-mediated stress in Caco-…

2013

Human diets contain sterol oxidation products that can induce cytotoxic effects, mainly caused by cholesterol oxides. However, phytosterol oxides effects have been less extensively investigated. This study evaluates the production of inflammatory biomarkers (IL-1β, IL-8, IL-10, TNFα) and the influence of gene expression transporters and enzymes related to cholesterol absorption and metabolism (NPC1L1, ABCG5/8, HMGCoA, ACAT) produced by 7-ketosterols (stigmasterol/cholesterol) in Caco-2 cells. These effects were linked to intracellular signaling pathways by using several inhibitors. Results showed 7-ketostigmasterol to have a greater proinflammatory potential than 7-ketocholesterol. In non-p…

media_common.quotation_subjectLipoproteinsInterleukin-1betaStigmasterolDown-RegulationInflammationToxicologyBradykininProinflammatory cytokineGene expressionmedicineHumansRNA MessengerATP Binding Cassette Transporter Subfamily G Member 5Acetyl-CoA C-AcetyltransferaseInternalizationKetocholesterolsmedia_commonInflammationbiologyTumor Necrosis Factor-alphaAnticholesteremic AgentsInterleukin-8Membrane ProteinsMembrane Transport ProteinsBiological TransportGeneral MedicineMetabolismSterolInterleukin-10Up-RegulationBiochemistryHMG-CoA reductasebiology.proteinTumor necrosis factor alphaATP-Binding Cassette TransportersAcyl Coenzyme Amedicine.symptomCaco-2 CellsBiomarkersFood ScienceFood and chemical toxicology : an international journal published for the British Industrial Biological Research Association
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Constitutive androstane receptor activation stimulates faecal bile acid excretion and reverse cholesterol transport in mice.

2010

The constitutive androstane receptor (CAR) is a nuclear receptor expressed in the liver and involved in xenobiotic metabolism. The aim of this study was to assess whether pharmacological CAR activation could affect neutral sterol and bile acid elimination under conditions of cholesterol overload.Wild type, Car-/-, ApoE-/-, and low-density lipoprotein receptor (Ldlr)-/- mice fed a western-type diet were treated with the CAR agonist TCPOBOP.CAR activation was associated with a decrease in faecal cholesterol output related to the repression of the Abcg5/g8 cholesterol transporters. In contrast, TCPOBOP treatment induced a marked increase (up to three fold, p0.01) in the elimination of faecal b…

medicine.medical_specialtymedicine.drug_classPyridinesLipoproteinsBiological Transport ActiveGene ExpressionReceptors Cytoplasmic and NuclearHyperlipidemiasBiologyCholesterol 7 alpha-hydroxylaseBile Acids and Saltschemistry.chemical_compoundFecesMiceApolipoproteins EInternal medicineConstitutive androstane receptormedicineAnimalsHomeostasisATP Binding Cassette Transporter Subfamily G Member 5Liver X receptorConstitutive Androstane ReceptorMice KnockoutHepatologyBile acidCholesterolReverse cholesterol transportATP Binding Cassette Transporter Subfamily G Member 8Cholesterol HDLAtherosclerosisSterolMice Inbred C57BLEndocrinologyCholesterolchemistryLiverReceptors LDLLDL receptorlipids (amino acids peptides and proteins)ATP-Binding Cassette TransportersJournal of hepatology
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