Search results for "Histone acetyltransferases"

showing 4 items of 44 documents

Epigenetic Regulation of Early- and Late-Response Genes in Acute Pancreatitis

2015

Abstract Chromatin remodeling seems to regulate the patterns of proinflammatory genes. Our aim was to provide new insights into the epigenetic mechanisms that control transcriptional activation of early- and late-response genes in initiation and development of severe acute pancreatitis as a model of acute inflammation. Chromatin changes were studied by chromatin immunoprecipitation analysis, nucleosome positioning, and determination of histone modifications in promoters of proinflammatory genes in vivo in the course of taurocholate-induced necrotizing pancreatitis in rats and in vitro in rat pancreatic AR42J acinar cells stimulated with taurocholate or TNF-α. Here we show that the upregulat…

Taurocholic AcidTranscriptional Activation0301 basic medicineChromatin ImmunoprecipitationImmunologyAcinar CellsBiologyMethylationChromatin remodelingEpigenesis GeneticHistones03 medical and health sciences0302 clinical medicineHistone methylationAnimalsImmunology and AllergyNucleosomeEpigeneticsPromoter Regions GeneticEarly Growth Response Protein 1Histone AcetyltransferasesInflammationPancreatitis Acute NecrotizingTumor Necrosis Factor-alphaDNA HelicasesNuclear ProteinsAcetylationHistone acetyltransferaseChromatin Assembly and DisassemblyRatsChromatin030104 developmental biologyHistoneGene Expression Regulation030220 oncology & carcinogenesisbiology.proteinCancer researchProtein Processing Post-TranslationalChromatin immunoprecipitationTranscription FactorsThe Journal of Immunology
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Sus1, a functional component of the SAGA histone acetylase complex and the nuclear pore-associated mRNA export machinery

2004

12 páginas, 7 figuras, 1 tabla. Material suplementario en: https://doi.org/10.1016/S0092-8674(03)01025-0. The SUS1 sequences have been deposited in GenBank with the accession number AY278445.

Transcriptional ActivationNucleocytoplasmic Transport ProteinsDNA ComplementarySaccharomyces cerevisiae ProteinsMolecular Sequence DataActive Transport Cell NucleusPorinsRNA polymerase IIBiologyGeneral Biochemistry Genetics and Molecular BiologyFungal ProteinsTranscription (biology)AcetyltransferasesGene Expression Regulation FungalYeastsGene expressionGenes RegulatorTranscriptional regulationAmino Acid SequenceRNA MessengerNuclear proteinPromoter Regions GeneticHistone AcetyltransferasesRegulation of gene expressionCell NucleusBase SequenceBiochemistry Genetics and Molecular Biology(all)Nuclear ProteinsRNA-Binding ProteinsMolecular biologyCell biologySAGA complexRibonucleoproteinsbiology.proteinNuclear PoreGenes LethalChromatin immunoprecipitation
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Tracing the origin of the compensasome: evolutionary history of DEAH helicase and MYST acetyltransferase gene families.

2001

Dosage compensation in Drosophila is mediated by a complex of proteins and RNAs called the "compensasome." Two of the genes that encode proteins of the complex, maleless (mle) and males-absent-on-the-first (mof), respectively, belong to the DEAH helicase and MYST acetyltransferase gene families. We performed comprehensive phylogenetic and structural analyses to determine the evolutionary histories of these two gene families and thus to better understand the origin of the compensasome. All of the members of the DEAH and MYST families of the completely sequenced Saccharomyces cerevisiae and Caenorhabditis elegans genomes, as well as those so far (June 2000) found in Drosophila melanogaster (f…

animal structuresChromosomal Proteins Non-HistoneMolecular Sequence DataBiologyEvolution MolecularAcetyltransferasesGeneticsGene familyAnimalsDrosophila ProteinsAmino Acid SequenceMolecular BiologyGeneEcology Evolution Behavior and SystematicsCaenorhabditis elegansPhylogenyHistone AcetyltransferasesGeneticsDosage compensationSequence Homology Amino AcidfungiDNA HelicasesHelicaseNuclear Proteinsbiology.organism_classificationRNA Helicase ACaenorhabditisDNA-Binding ProteinsMultigene Familybiology.proteinDrosophila melanogasterRNA HelicasesTranscription FactorsMolecular biology and evolution
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Phosphodiesterase-4 inhibition improves corticosteroid insensitivity in pulmonary endothelial cells under oxidative stress.

2012

Several clinical studies have shown that smoking in asthmatics and chronic obstructive pulmonary disease patients is closely associated with corticosteroid refractoriness. In this work, we have analyzed glucocorticoid insensitivity in human pulmonary artery endothelial cells (HPAECs) under cigarette smoke extract (CSE) exposure as well as the possible additive effects of the combination therapy with a phosphodiesterase (PDE)-4 inhibitor. Interleukin (IL)-8 was measured in cell supernatants by ELISA. Histone deacetylase (HDAC), histone acetylase (HAT), and intracellular cAMP levels were measured by colorimetric assays and enzyme immunoassay, respectively. PDE4 isotypes and glucocorticoid rec…

medicine.medical_specialtyImmunologyApoptosisDexamethasoneHistone DeacetylasesGlucocorticoid receptorReceptors GlucocorticoidAdrenal Cortex HormonesInternal medicinemedicineCyclic AMPImmunology and AllergyHumansReceptorLungDexamethasoneRolipramCell ProliferationHistone AcetyltransferasesChemistryTumor Necrosis Factor-alphaInterleukin-8InterleukinPhosphodiesteraseEndothelial CellsAparato respiratorioCyclic Nucleotide Phosphodiesterases Type 4Enzyme ActivationOxidative StressEndocrinologyHistone deacetylasePhosphodiesterase 4 InhibitorsPulmonesReactive Oxygen SpeciesRolipramGlucocorticoidmedicine.drugAllergy
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