2018
Insulin signaling and reduced glucocorticoid receptor activity attenuate postprandial gene expression in liver
Kalvisa A, Siersbæk M, Præstholm S, Christensen L, Nielsen R, Stohr O, Vettorazzi S, Tuckermann J, White M, Mandrup S, Grøntved L. Insulin signaling and reduced glucocorticoid receptor activity attenuate postprandial gene expression in liver. PLOS Biology 2018, 16: e2006249. PMID: 30532187, PMCID: PMC6301715, DOI: 10.1371/journal.pbio.2006249.Peer-Reviewed Original ResearchConceptsCircadian gene transcriptionGene transcriptionGene expressionCircadian-regulated genesInsulin-regulated genesGenomic approachesGlucocorticoid receptorGene programEnhancer activityCistromic analysisGlucocorticoid receptor activityGenesMechanistic insightsTranscriptionFeeding behaviorSelective disruptionDiet-induced obese animalsEnhancerReceptor activityFeeding responseDiet-induced obesityExpressionDysregulationChromatinFOXO1
2013
Insulin receptor substrate‐2 is expressed in kidney epithelium and up‐regulated in diabetic nephropathy
Hookham M, O'Donovan H, Church R, Mercier‐Zuber A, Luzi L, Curran S, Carew R, Droguett A, Mezzano S, Schubert M, White M, Crean J, Brazil D. Insulin receptor substrate‐2 is expressed in kidney epithelium and up‐regulated in diabetic nephropathy. The FEBS Journal 2013, 280: 3232-3243. PMID: 23617393, PMCID: PMC4022317, DOI: 10.1111/febs.12305.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAnimalsBase SequenceBinding SitesBone Morphogenetic Protein 7Case-Control StudiesCell LineChildDiabetic NephropathiesEpitheliumFemaleGene ExpressionHumansInsulin Receptor Substrate ProteinsKidney TubulesMaleMiceMiddle AgedPhosphorylationProtein Processing, Post-TranslationalSignal TransductionSmad4 ProteinTranscriptional ActivationYoung AdultConceptsDiabetic nephropathyBone morphogenetic protein-7DN patientsInsulin receptor substrateChronic kidney disease severityEnd-stage renal diseaseProgression of DNKidney epitheliumTyrosine/serine phosphorylationHuman kidney proximal tubule epithelial cellsKidney disease severityProximal tubule epithelial cellsKidney proximal tubule epithelial cellsHK-2 cellsRole of insulinInsulin receptor substrate 2Growth factor-β1Tubule epithelial cellsIRS2 transcriptionSDS/PAGEIRS proteinsDN progressionRenal diseaseKidney failureMorphogenetic protein-7Chronic activation of a designer Gq-coupled receptor improves β cell function
Jain S, de Azua I, Lu H, White M, Guettier J, Wess J. Chronic activation of a designer Gq-coupled receptor improves β cell function. Journal Of Clinical Investigation 2013, 123: 1750-1762. PMID: 23478411, PMCID: PMC3613926, DOI: 10.1172/jci66432.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell Line, TumorCell ProliferationClozapineDiabetes Mellitus, ExperimentalDrug Evaluation, PreclinicalFemaleGene ExpressionGTP-Binding Protein alpha Subunits, Gq-G11Hypoglycemic AgentsInsulin Receptor Substrate ProteinsInsulin-Secreting CellsMaleMAP Kinase Signaling SystemMiceMice, Inbred C57BLMice, TransgenicMolecular Targeted TherapyMuscarinic AgonistsProtein EngineeringReceptor, Muscarinic M3Receptors, G-Protein-CoupledRecombinant ProteinsConceptsΒ-cell functionΒ-cellsCell functionPancreatic β-cell functionStreptozotocin-induced diabetesBeneficial metabolic effectsTreatment of T2D.High-fat dietType 2 diabetesNovel antidiabetic drugsType G proteinsClasses of receptorsChronic stimulationMetabolic deficitsAntidiabetic drugsMetabolic effectsChronic activationGlucose homeostasisTherapeutic strategiesCell pathwaysEnhanced expressionReceptorsNumerous receptorsCellular effectsDiabetes
2012
IRS2 Signaling in LepR-b Neurons Suppresses FoxO1 to Control Energy Balance Independently of Leptin Action
Sadagurski M, Leshan R, Patterson C, Rozzo A, Kuznetsova A, Skorupski J, Jones J, Depinho R, Myers M, White M. IRS2 Signaling in LepR-b Neurons Suppresses FoxO1 to Control Energy Balance Independently of Leptin Action. Cell Metabolism 2012, 15: 703-712. PMID: 22560222, PMCID: PMC3361909, DOI: 10.1016/j.cmet.2012.04.011.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBrainCytoskeletal ProteinsEnergy MetabolismFemaleForkhead Box Protein O1Forkhead Transcription FactorsGene ExpressionGlucoseGlucose IntoleranceHomeostasisInsulinInsulin Receptor Substrate ProteinsInsulin ResistanceLeptinMaleMiceMice, TransgenicNerve Tissue ProteinsNeuronsObesityReceptors, LeptinSignal TransductionConceptsLeptin actionGlucose homeostasisGlucose intoleranceInsulin resistanceHormone leptinFoxO1 nuclear exclusionIRS2 expressionLeptin receptorMetabolic actionsNeuronsMiceEnergy balanceFOXO1Metabolic sensingIRS2HomeostasisGene expressionNuclear exclusionObesityLeptinExpressionCNSInsulinIntoleranceBrain
2011
IRS2 increases mitochondrial dysfunction and oxidative stress in a mouse model of Huntington disease
Sadagurski M, Cheng Z, Rozzo A, Palazzolo I, Kelley G, Dong X, Krainc D, White M. IRS2 increases mitochondrial dysfunction and oxidative stress in a mouse model of Huntington disease. Journal Of Clinical Investigation 2011, 121: 4070-4081. PMID: 21926467, PMCID: PMC3195462, DOI: 10.1172/jci46305.Peer-Reviewed Original ResearchMeSH KeywordsAgingAnimalsBrainDisease Models, AnimalDisease ProgressionFemaleForkhead Box Protein O1Forkhead Transcription FactorsGene ExpressionHumansHuntington DiseaseInsulin Receptor Substrate ProteinsLongevityMaleMiceMice, KnockoutMice, Mutant StrainsMice, TransgenicMitochondriaOxidative StressSignal TransductionConceptsHuntington's diseaseOxidative stressMouse modelProgression of HDMitochondrial dysfunctionMajor risk factorR6/2 mouse modelNeuronal oxidative stressMitochondrial functionHD-like symptomsHD patientsNumber of autophagosomesTranscription factor FOXO1Risk factorsR6/2 miceSlow progressionTherapeutic approachesExpression of IRS2HD progressionLife spanNeurodegenerative diseasesIRS2 levelsProgressionDiseaseMice
2005
Cyclins D2 and D1 Are Essential for Postnatal Pancreatic β-Cell Growth
Kushner J, Ciemerych M, Sicinska E, Wartschow L, Teta M, Long S, Sicinski P, White M. Cyclins D2 and D1 Are Essential for Postnatal Pancreatic β-Cell Growth. Molecular And Cellular Biology 2005, 25: 3752-3762. PMID: 15831479, PMCID: PMC1084308, DOI: 10.1128/mcb.25.9.3752-3762.2005.Peer-Reviewed Original ResearchConceptsBeta-cell massAdult beta-cell massD2 mRNA expressionCyclin D2 mRNA expressionBeta-cell proliferationMonths of agePancreatic β-cell growthBeta cell expansionΒ-cell growthGlucose intoleranceGlucose toleranceInsulin secretionGlucose homeostasisAdult miceBeta cellsIslet growthPancreatic isletsCyclin D1MRNA expressionDiabetesMiceCyclin D2Cyclin D3Adult murineIslet development
2004
IRS‐2 mediates the antiapoptotic effect of insulin in neonatal hepatocytes
Valverde A, Fabregat I, Burks D, White M, Benito M. IRS‐2 mediates the antiapoptotic effect of insulin in neonatal hepatocytes. Hepatology 2004, 40: 1285-1294. PMID: 15565601, DOI: 10.1002/hep.20485.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAnimals, NewbornApoptosisApoptosis Regulatory ProteinsBcl-2-Like Protein 11Bcl-X ProteinBlood ProteinsCarrier ProteinsEpidermal Growth FactorFemaleForkhead Box Protein O1Forkhead Transcription FactorsGene ExpressionHepatocytesHypoglycemic AgentsInsulinInsulin Receptor Substrate ProteinsIntracellular Signaling Peptides and ProteinsMaleMembrane ProteinsMiceMice, Mutant StrainsPhosphatidylinositol 3-KinasesPhosphoproteinsPregnancyProtein Serine-Threonine KinasesProto-Oncogene ProteinsProto-Oncogene Proteins c-aktProto-Oncogene Proteins c-bcl-2Signal TransductionTranscription FactorsConceptsCaspase-3 activityIRS-2Caspase-3 activationGene expressionWild-type hepatocytesDominant negative FoxO1Wild-type cellsSerum withdrawal-induced apoptosisInsulin receptor substrateWithdrawal-induced apoptosisAnti-apoptotic gene expressionImmortalized hepatocyte cell linesIRS-2 signalingPIP3 generationProapoptotic gene expressionAntiapoptotic gene expressionProlonged insulin treatmentEpidermal growth factorActive FoxO1Receptor substrateNeonatal hepatocytesProapoptotic genesAntiapoptotic genesCaspase-8Serum withdrawal
1999
Early biochemical events in insulin-stimulated fluid phase endocytosis
Pitterle D, Sperling R, Myers M, White M, Blackshear P. Early biochemical events in insulin-stimulated fluid phase endocytosis. American Journal Of Physiology 1999, 276: e94-e105. PMID: 9886955, DOI: 10.1152/ajpendo.1999.276.1.e94.Peer-Reviewed Original ResearchConceptsInsulin receptor substrate-1Fluid-phase endocytosisMitogen-activated protein kinase kinaseRat-1 cellsInsulin receptorDominant negative mutant RasHematopoietic precursor cell lineBat cellsHIRc-B cellsInhibitor of PIProtein kinase kinaseWild-type RasMEK inhibitor PD 98059Active insulin receptorEndogenous IRS-1Receptor substrate-1Inhibitor PD 98059Certain cell typesPrecursor cell lineInitial molecular mechanismsIRS-1 expressionKinase kinaseEarly biochemical eventsMutant RasSubstrate-1
1998
A specific increased expression of insulin receptor substrate 2 in pancreatic beta-cell lines is involved in mediating serum-stimulated beta-cell growth.
Schuppin G, Pons S, Hügl S, Aiello L, King G, White M, Rhodes C. A specific increased expression of insulin receptor substrate 2 in pancreatic beta-cell lines is involved in mediating serum-stimulated beta-cell growth. Diabetes 1998, 47: 1074-1085. PMID: 9648831, DOI: 10.2337/diabetes.47.7.1074.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBase SequenceBloodCell DifferentiationCell DivisionDNAGene ExpressionGenes, fosGenes, junInsulin Receptor Substrate ProteinsInsulinomaIntracellular Signaling Peptides and ProteinsIslets of LangerhansMitogensMolecular Sequence DataPancreatic NeoplasmsPhosphoproteinsRatsRetroelementsRNA, MessengerSignal TransductionTumor Cells, CulturedConceptsSignal transduction pathwaysIRS-2 expressionPancreatic beta-cell lineIRS-2Protein kinaseTransduction pathwaysBeta-cell lineGene expressionIRS-2 gene expressionSevenless-1 proteinBeta-cell growthDifferential mRNA display analysisMitogen-activated protein kinaseDifferential gene expressionTyrosine protein kinaseInsulin receptor substrate 2Insulinoma cellsInsulin receptor substrateGene candidate approachSerum-stimulated DNA synthesisPancreatic beta-cell growthRibosomal proteinsProtein complexesMRNA levelsBeta-cells contributes