0000000000481908

AUTHOR

Claudia Gutacker

showing 3 related works from this author

Nerve growth factor and epidermal growth factor stimulate clusterin gene expression in PC12 cells

1999

Clusterin (apolipoprotein J) is an extracellular glycoprotein that might exert functions in development, cell death and lipid transport. Clusterin gene expression is elevated at sites of tissue remodelling, such as differentiation and apoptosis; however, the signals responsible for this regulation have not been identified. We use here the clusterin gene as a model system to examine expression in PC12 cells under the control of differentiation and proliferation signals produced by nerve growth factor (NGF) and by epidermal growth factor (EGF) respectively. NGF induced clusterin mRNA, which preceded neurite outgrowth typical of neuronal differentiation. EGF also activated the clusterin mRNA, …

Transcriptional ActivationProgrammed cell deathNeuriteMolecular Sequence DataResponse ElementsTransfectionBinding CompetitivePC12 CellsBiochemistryEpidermal growth factorConsensus SequenceNeuritesAnimalsNerve Growth FactorsRNA MessengerCloning MolecularPromoter Regions GeneticMolecular BiologyGlycoproteinsSequence DeletionNeuronsRegulation of gene expressionMessenger RNABase SequenceEpidermal Growth FactorClusterinbiologyKinaseCell DifferentiationDNACell BiologyMolecular biologyeye diseasesRatsTranscription Factor AP-1ClusterinNerve growth factorbiology.proteinsense organsCell DivisionMolecular ChaperonesSignal TransductionResearch ArticleBiochemical Journal
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Multiple signal transduction pathways regulate clusterin (gp 80) gene expression in MDCK cells

1996

ABSTRACT Clusterin (gp 80, apolipoprotein J, TRPM-2) is a widely expressed multifunctional glycoprotein. Its demonstrated and proposed functions include the transport of lipids and membrane fragments, the inhibition of the cytolytic action of the terminal complement complex and the modulation of cell—cell interactions. The expression of the gene is enhanced during tissue injury and remodelling and by hormone-withdrawal-induced apoptosis of prostate and mammary cells. We show here that, in the kidney-derived epithelial cell line MDCK, clusterin mRNA is repressed by glucocorticoids and by progesterone. Treatment with epidermal growth factor also represses clusterin gene expression in MDCK cel…

Cell typeTranscription GeneticKidneyDexamethasoneEpitheliumCell LineAlkaloidsDogsEndocrinologyEpidermal growth factor1-Methyl-3-isobutylxanthineGene expressionCyclic AMPAnimalsRNA MessengerEnzyme InhibitorsAldosteroneMolecular BiologyProgesteroneProtein Kinase CProtein kinase CGlycoproteinsBenzophenanthridinesMessenger RNAEpidermal Growth FactorClusterinbiologyChemistryMolecular biologyeye diseasesPhenanthridinesCell biologyKineticsClusterinCell culturebiology.proteinTetradecanoylphorbol Acetatesense organsSignal transductionMolecular ChaperonesSignal TransductionJournal of Molecular Endocrinology
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Differential regulation of the clusterin gene by Ha-ras and c-myc oncogenes and during apoptosis

1998

Clusterin (ApoJ) is an extracellular glycoprotein expressed during processes of tissue differentiation and regression that involve programmed cell death (apoptosis). Increased clusterin expression has also been found in tumors, however, the mechanism underlying this induction is not known. Apoptotic processes in tumors could be responsible for clusterin gene activation. Alternatively, oncogenic mutations could modulate signal transduction, thereby inducing the gene. We examined the response of the rat clusterin gene to two oncogenes, Ha-ras and c-myc, in transfected Rat1 fibroblasts. While c-myc overexpression did not modify clusterin gene activity, the Ha-ras oncogene produced a seven to t…

Cell signalingProgrammed cell deathUltraviolet RaysPhysiologyRecombinant Fusion ProteinsClinical BiochemistryGenes mycApoptosisDNA FragmentationBiologyTransfectionProto-Oncogene Proteins c-mycProto-Oncogene Proteins p21(ras)AnimalsRNA MessengerCell Line TransformedGlycoproteinsOncogeneClusterinCell CycleCell BiologyTransfectionFibroblastsCell cycleeye diseasesRatsClusterinGenes rasApoptosisMutationCancer researchbiology.proteinsense organsSignal transductionMolecular ChaperonesSignal TransductionJournal of Cellular Physiology
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