Search results for "Cyclic AMP Response Element Modulator"

showing 3 items of 3 documents

Cyclic AMP-mediated upregulation of the expression of neuronal NO synthase in human A673 neuroepithelioma cells results in a decrease in the level of…

2004

The expression level of neuronal nitric oxide synthase (nNOS) can vary depending on the (patho)physiological conditions. Here we document a marked induction of nNOS mRNA, protein, and total NO production in response to dibutyryl cyclic AMP (db-cAMP) in human A673 neuroepithelial cells. However, the upregulation of nNOS was associated with a decreased level of production of bioactive NO and by an increase in the level of generation of reactive oxygen species (ROS). ROS production could be prevented by the NOS inhibitor L-NAME, suggesting nNOS itself is involved in ROS generation. Sepiapterin supplementation of db-cAMP-treated A673 cells could restore full bioactive NO production, most likely…

CAMP-Responsive Element ModulatorNitric Oxide Synthase Type IBiologyCREBNitric OxideBiochemistryAdenylyl cyclaseCyclic AMP Response Element Modulatorchemistry.chemical_compoundMiceNeuroblastomaCoactivatorComplement C3b Inactivator ProteinsCyclic AMPAnimalsHumansNeuroectodermal Tumors Primitive PeripheralCREB-binding proteinEnzyme InhibitorsProtein kinase AeducationCyclic AMP Response Element-Binding ProteinGTP CyclohydrolaseCAMP response element bindingHomeodomain ProteinsNeuronseducation.field_of_studyForskolinPhosphoric Diester HydrolasesIntracellular Signaling Peptides and ProteinsBlood ProteinsLIM Domain ProteinsMolecular biologyCyclic AMP-Dependent Protein KinasesPterinsUp-RegulationDNA-Binding ProteinsRepressor ProteinsAntisense Elements (Genetics)NG-Nitroarginine Methyl EsterchemistryBucladesineGene Expression RegulationComplement Factor Hbiology.proteinNitric Oxide SynthaseReactive Oxygen SpeciesSignal TransductionBiochemistry
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Cyclic AMP-inducible genes respond uniformly to seasonal lighting conditions in the rat pineal gland

2006

The encoding of photoperiodic information ensues in terms of the daily profile in the expression of cyclic AMP (cAMP)-inducible genes such as the arylalkylamine N-acetyltransferase (AA-NAT) gene that encodes the rate-limiting enzyme in melatonin formation. In the present study, we compared the influence of the photoperiodic history on the cAMP-inducible genes AA-NAT, inducible cyclic AMP early repressor (ICER), fos-related antigen-2 (FRA-2), mitogen-activated protein kinase phosphatase-1 (MKP-1), nerve growth factor inducible gene-A (NGFI-A) and nerve growth factor inducible gene-B (NGFI-B) in the pineal gland of rats. For this purpose, we monitored the daily profiles of each gene in the sa…

Maleendocrine systemmedicine.medical_specialtyLightRepressorBiologyPineal GlandCyclic AMP Response Element ModulatorRats Sprague-DawleyPineal glandInternal medicineCyclic AMPmedicineAnimalsRNA MessengerCircadian rhythmProtein kinase AphotoperiodismReverse Transcriptase Polymerase Chain ReactionGeneral NeuroscienceCircadian RhythmRatsEndocrinologyNerve growth factormedicine.anatomical_structureGene Expression RegulationArylalkylamineFemalehormones hormone substitutes and hormone antagonistsEndocrine glandNeuroscience
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A differential role of CREB phosphorylation in cAMP-inducible gene expression in the rat pineal

2000

In the rat pineal gland cAMP mediates nocturnal induction of the enzyme arylalkylamine N-acetyltransferase (AA-NAT) as well as of transcription factors such as inducible cAMP early repressor (ICER), Fos-related antigen-2 (Fra-2) and JunB. Cyclic AMP stimulates the phosphorylation of the DNA binding protein cAMP response element binding protein (CREB). While cAMP-induced CREB phosphorylation appears to be a prerequisite for AA-NAT and ICER gene expression, it is not known whether CREB phosphorylation accounts for the full cAMP response of the two genes. Furthermore, the significance of CREB phosphorylation in cAMP-activated Fra-2 and JunB transcription is unknown. In the present in vitro stu…

Transcriptional Activationendocrine systemCAMP-Responsive Element ModulatorArylamine N-AcetyltransferaseProto-Oncogene Proteins c-junJUNBBlotting WesternNerve Tissue ProteinsFos-Related Antigen-2CREBPineal GlandGene Expression Regulation EnzymologicCyclic AMP Response Element ModulatorRats Sprague-DawleyOkadaic AcidGene expressionAnimalsRNA MessengerEnzyme InhibitorsPhosphorylationCyclic AMP Response Element-Binding ProteineducationMolecular BiologyTranscription factorRegulation of gene expressioneducation.field_of_studybiologyReverse Transcriptase Polymerase Chain ReactionGeneral NeuroscienceMolecular biologyRatsDNA-Binding ProteinsRepressor ProteinsBucladesinebiology.proteinPhosphorylationNeurology (clinical)CREB1Proto-Oncogene Proteins c-fosSignal TransductionTranscription FactorsDevelopmental BiologyBrain Research
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