0000000000465467

AUTHOR

Mara Bonelli

showing 2 related works from this author

Hypertonic Stress and Amino Acid Deprivation Both Increase Expression of mRNA for Amino Acid Transport System A

2004

The activity of amino acid transport system A ([Oxender and Christensen, 1963][1]) is regulated in a variety of different ways, the best studied being the increases of its activity caused by starving cells of amino acids or by exposing them to hypertonicity (for review see [McGivan and Pastor-

Amino Acid Transport System APhysiologyCHO CellsBiologyCricetulusOsmotic PressureCricetinaeAnimalsHumansOsmotic pressureRNA MessengerAmino AcidsLetter to the Editorchemistry.chemical_classificationRegulation of gene expressionMessenger RNAChinese hamster ovary cellbiology.organism_classificationAmino acidGene Expression RegulationHypotonic SolutionschemistryBiochemistryHypertonic StressTonicityCricetulusJournal of General Physiology
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Stabilization of hsp70 mRNA on prolonged cell exposure to hypertonicity

2002

AbstractProlonged exposure of 3T3 cells to 0.5 osM hypertonic medium induced the accumulation of hsp70 mRNAs. This increase in mRNA levels required active protein synthesis. A weak and transient activation of heat shock factor 1 (HSF1) was noted, but it was temporally uncoupled to the accumulation of the hsp70 mRNAs. Nuclear run-on assay and transfection experiments showed that hsp70 gene transcription was not affected by hypertonicity. ActD chase experiments showed that during hypertonic treatment, degradation of hsp70 mRNAs was markedly reduced. This effect did not appear to be a general phenomenon since the increase in mRNA level of another gene induced by hypertonicity (ATA2 transporter…

Amino Acid Transport System ATranscription GeneticBiologyTransfectionMiceHeat Shock Transcription FactorsTranscription (biology)Heat shock proteinATA2 mRNAAnimalsHSP70 Heat-Shock ProteinsRNA MessengerHSF1HypertonicityMolecular BiologySaline Solution HypertonicMessenger RNAHeat shock proteinMRNA stabilizationTransfection3T3 CellsCell Biologyhsp70 mRNAMolecular biologyHsp70DNA-Binding ProteinsProtein BiosynthesisRNA stabilizationmRNA stabilizationTranscription FactorsBiochimica et Biophysica Acta (BBA) - Molecular Cell Research
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