2021
Insulin receptor substrate 1, but not IRS2, plays a dominant role in regulating pancreatic alpha cell function in mice
Takatani T, Shirakawa J, Shibue K, Gupta M, Kim H, Lu S, Hu J, White M, Kennedy R, Kulkarni R. Insulin receptor substrate 1, but not IRS2, plays a dominant role in regulating pancreatic alpha cell function in mice. Journal Of Biological Chemistry 2021, 296: 100646. PMID: 33839150, PMCID: PMC8131928, DOI: 10.1016/j.jbc.2021.100646.Peer-Reviewed Original ResearchConceptsAKT Ser/Thr kinaseInsulin receptor substrate (IRS) proteinsSer/Thr kinaseAlpha-cell functionGlobal protein translationCell functionInsulin receptor substrate-1Pancreatic alpha-cell functionDownstream target genesReceptor substrate-1Alpha cellsAlpha-cell lineGlucagon secretionSubstrate proteinsProtein translationTarget genesSubstrate-1Downstream proteinsDominant regulatorPancreatic alpha cellsMitochondrial dysfunctionCognate receptorsIRS2Normal glucose toleranceCell lines
2006
Suppression of Insulin Receptor Substrate 1 (IRS-1) Promotes Mammary Tumor Metastasis
Ma Z, Gibson S, Byrne M, Zhang J, White M, Shaw L. Suppression of Insulin Receptor Substrate 1 (IRS-1) Promotes Mammary Tumor Metastasis. Molecular And Cellular Biology 2006, 26: 9338-9351. PMID: 17030605, PMCID: PMC1698550, DOI: 10.1128/mcb.01032-06.Peer-Reviewed Original ResearchConceptsIRS-1Insulin receptor substrate (IRS) proteinsInsulin receptor substrate-1Wild-type levelsMetastasis suppressor functionReceptor substrate-1Cell surface receptorsBreast cancerSubstrate proteinsCytoplasmic adaptorAkt/mTOR activityMammary tumor metastasisSignificant homologySerine phosphorylationDistinct functionsSubstrate-1Mammary tumorsIRS-2MTOR activitySuppressor functionMetastatic mammary tumorsTumor cellsIR-1Surface receptorsBreast cancer metastasis
2004
Involvement of Insulin Receptor Substrate 2 in Mammary Tumor Metastasis
Nagle J, Ma Z, Byrne M, White M, Shaw L. Involvement of Insulin Receptor Substrate 2 in Mammary Tumor Metastasis. Molecular And Cellular Biology 2004, 24: 9726-9735. PMID: 15509777, PMCID: PMC525494, DOI: 10.1128/mcb.24.22.9726-9735.2004.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApoptosisBase SequenceBreast NeoplasmsCell Line, TumorDNA, NeoplasmFemaleHumansInsulin Receptor Substrate ProteinsIntracellular Signaling Peptides and ProteinsMammary Neoplasms, ExperimentalMiceMice, Inbred C57BLMice, KnockoutMice, TransgenicMitosisNeoplasm InvasivenessPhosphoproteinsPhosphorylationConceptsIRS-2Insulin receptor substrate (IRS) proteinsMammary tumor cellsPolyoma virus middle T antigenInsulin receptor substrate 2Middle T antigenGrowth factor deprivationTumor cellsIRS-2 expressionSubstrate proteinsPyV mTMammary tumor metastasisApoptotic stimuliFactor deprivationAdaptor moleculeIncidence of metastasisMitotic cellsMammary fat padMammary tumor progressionBreast cancer metastasisHuman breast cancerSubstrate 2T antigenTumor initiationCancer metastasisInsulin receptor substrate proteins and diabetes
Lee Y, White M. Insulin receptor substrate proteins and diabetes. Archives Of Pharmacal Research 2004, 27: 361-370. PMID: 15180298, DOI: 10.1007/bf02980074.Peer-Reviewed Original ResearchConceptsInsulin receptor substrate (IRS) proteinsSubstrate proteinsPancreatic β-cell growthInsulin/IGFIntracellular signaling cascadesReceptor tyrosine kinasesΒ-cell growthCell surface receptorsIRS proteinsGrowth factor actionProtein signalingSerine phosphorylationSignaling cascadesInsulin resistanceTyrosine kinaseInsulin-like growth factor actionIrs2 branchCell growthSurface receptorsFactor actionPeripheral insulin responsePeripheral insulin resistanceIRS2ProteinImportant mechanism
2003
Insulin Receptor Substrate-2 Deficiency Impairs Brain Growth and Promotes Tau Phosphorylation
Schubert M, Brazil D, Burks D, Kushner J, Ye J, Flint C, Farhang-Fallah J, Dikkes P, Warot X, Rio C, Corfas G, White M. Insulin Receptor Substrate-2 Deficiency Impairs Brain Growth and Promotes Tau Phosphorylation. Journal Of Neuroscience 2003, 23: 7084-7092. PMID: 12904469, PMCID: PMC6740672, DOI: 10.1523/jneurosci.23-18-07084.2003.Peer-Reviewed Original ResearchMeSH KeywordsAge FactorsAnimalsApoptosisBody WeightBrainCell CountCell DivisionCell SurvivalCells, CulturedCerebellumCrosses, GeneticEnzyme InhibitorsHeterozygoteIn Situ Nick-End LabelingInsulin Receptor Substrate ProteinsIntracellular Signaling Peptides and ProteinsMiceMice, KnockoutNeuronsOrgan SizePhosphoproteinsPhosphorylationReceptor, IGF Type 1Signal TransductionTau ProteinsConceptsMolecular linkInsulin receptor substrate (IRS) proteinsBrain growthNeurodegenerative diseasesPancreatic beta-cell functionPeripheral insulin actionSubstrate proteinsBeta-cell functionTyrosine phosphorylationLike growth factorIrs2 branchInsulin resistanceTau phosphorylationIRS2 geneNeuronal proliferationInsulin actionMouse brainInsulin-IGFGrowth factorPhosphorylationIRS2DiabetesBody growthDiseaseMice
2002
IRS proteins and the common path to diabetes
White M. IRS proteins and the common path to diabetes. AJP Endocrinology And Metabolism 2002, 283: e413-e422. PMID: 12169433, DOI: 10.1152/ajpendo.00514.2001.Peer-Reviewed Original ResearchConceptsInsulin receptor substrate (IRS) proteinsIRS protein functionsProteosome-mediated degradationCommon regulatory pathwayCommon molecular mechanismIntracellular signaling cascadesInsulin/IGF receptorIRS-2 signalingCell surface receptorsIRS proteinsSubstrate proteinsPancreatic beta-cell growthProtein functionGrowth factor actionNutrient sensingSerine phosphorylationRegulatory pathwaysSignaling cascadesIGF-signaling pathwayInsulin resistanceMolecular mechanismsIRS-2Insulin-like growth factor actionIRS-1Broader role
2001
Regulation of Insulin/Insulin-like Growth Factor-1 Signaling by Proteasome-mediated Degradation of Insulin Receptor Substrate-2*
Rui L, Fisher T, Thomas J, White M. Regulation of Insulin/Insulin-like Growth Factor-1 Signaling by Proteasome-mediated Degradation of Insulin Receptor Substrate-2*. Journal Of Biological Chemistry 2001, 276: 40362-40367. PMID: 11546773, DOI: 10.1074/jbc.m105332200.Peer-Reviewed Original ResearchMeSH KeywordsAdipocytesAnimalsCarcinoma, HepatocellularDiabetes Mellitus, Type 2Down-RegulationFeedbackFibroblastsHumansInsulinInsulin Receptor Substrate ProteinsInsulin-Like Growth Factor IIntracellular Signaling Peptides and ProteinsLiver Neoplasms, ExperimentalMiceMitogen-Activated Protein KinasesOsmotic PressurePeptide HydrolasesPhosphatidylinositol 3-KinasesPhosphoproteinsProteasome Endopeptidase ComplexProtein KinasesProtein Serine-Threonine KinasesProto-Oncogene ProteinsProto-Oncogene Proteins c-aktReceptor, InsulinSignal TransductionTOR Serine-Threonine KinasesTumor Cells, CulturedUbiquitinConceptsInsulin-like growth factor-1Insulin/IGFMouse embryo fibroblastsProteasome-mediated degradationIRS-2Embryo fibroblastsInsulin/insulin-like growth factor-1 signalingInsulin receptor substrate (IRS) proteinsUbiquitin/proteasome-mediated degradationNovel negative feedback mechanismInsulin-like growth factor-1 signalingInsulin receptor substrate 2Inhibitor of phosphatidylinositolIRS-1 activationPeripheral insulin actionIGF-1 treatmentReceptor tyrosine kinasesHomologous receptor tyrosine kinasesGrowth factor-1IRS proteinsSubstrate proteinsBeta-cell survivalOsmotic stressTyrosine kinaseIRS-1
2000
Essential Role of Insulin Receptor Substrate-2 in Insulin Stimulation of Glut4 Translocation and Glucose Uptake in Brown Adipocytes*
Fasshauer M, Klein J, Ueki K, Kriauciunas K, Benito M, White M, Kahn C. Essential Role of Insulin Receptor Substrate-2 in Insulin Stimulation of Glut4 Translocation and Glucose Uptake in Brown Adipocytes*. Journal Of Biological Chemistry 2000, 275: 25494-25501. PMID: 10829031, DOI: 10.1074/jbc.m004046200.Peer-Reviewed Original ResearchMeSH KeywordsAdipocytesAdipose Tissue, BrownAnimalsArabidopsis ProteinsAzo CompoundsBiological TransportCell DifferentiationCell MembraneCells, CulturedColoring AgentsDose-Response Relationship, DrugGlucoseGlucose Transporter Type 4ImmunoblottingInsulinInsulin Receptor Substrate ProteinsIntracellular Signaling Peptides and ProteinsMiceMice, KnockoutMonosaccharide Transport ProteinsMuscle ProteinsPhosphatidylinositol 3-KinasesPhosphoproteinsPhosphorylationPlant ProteinsPlasmidsPotassium ChannelsPrecipitin TestsProtein Serine-Threonine KinasesProto-Oncogene ProteinsProto-Oncogene Proteins c-aktRetroviridaeSignal TransductionSubcellular FractionsTime FactorsConceptsInsulin-stimulated GLUT4 translocationGLUT4 translocationInsulin-induced glucose uptakeIRS-2Plasma membraneDownstream effectorsWild typeInsulin receptor substrate (IRS) proteinsBrown adipocyte cell lineInsulin stimulationGlycogen synthase kinase-3IRS-2-associated phosphatidylinositolGlucose uptakeAkt-dependent phosphorylationInsulin receptor substrate 2Synthase kinase-3Brown adipocytesMajor downstream effectorActivity of AktMature brown adipocytesAdipocyte cell lineSubstrate proteinsWild-type counterpartsKO cellsKinase 3Dysregulation of IRS-proteins causes insulin resistance and diabetes
Aguirre V, White M. Dysregulation of IRS-proteins causes insulin resistance and diabetes. Current Opinion In Endocrinology Diabetes And Obesity 2000, 7: 1-7. DOI: 10.1097/00060793-200002000-00001.Peer-Reviewed Original ResearchIRS proteinsInsulin receptor substrate (IRS) proteinsInsulin/insulin-like growth factorPeripheral insulin resistanceType 2 diabetesInsulin resistanceSubstrate proteinsGenetic approachesCommon type 2 diabetesΒ-cell failureInsulin-like growth factorCompensatory insulin secretionDevelopment of diabetesNormal carbohydrate metabolismEarly-onset formCarbohydrate metabolismGrowth factorInsulin secretionDiabetesInsulin actionImportant insightsDysregulationSecretionProteinResistanceDysregulation of IRS-proteins causes insulin resistance and diabetes
Aguirre V, White M. Dysregulation of IRS-proteins causes insulin resistance and diabetes. Current Opinion In Endocrinology Diabetes And Obesity 2000, 7: 1. DOI: 10.1097/00075197-200002000-00001.Peer-Reviewed Original ResearchIRS proteinsPeripheral insulin resistanceInsulin receptor substrate (IRS) proteinsInsulin/insulin-like growth factorType 2 diabetesΒ-cell differentiationInsulin-like growth factorInsulin receptor substrateCompensatory insulin secretionChronic insulin resistanceInsulin resistanceInsulin-signaling pathwayCarbohydrate metabolismInsulin secretionSubstrate proteinsGrowth factorSignal transductionTranscription factorsGenetic approachesCommon type 2 diabetesMolecular basisPancreatic β-cellsReceptor substrateInsulin actionInsulin-signaling systemIRS-4 Mediates Protein Kinase B Signaling during Insulin Stimulation without Promoting Antiapoptosis
Uchida T, Myers M, White M. IRS-4 Mediates Protein Kinase B Signaling during Insulin Stimulation without Promoting Antiapoptosis. Molecular And Cellular Biology 2000, 20: 126-138. PMID: 10594015, PMCID: PMC85068, DOI: 10.1128/mcb.20.1.126-138.2000.Peer-Reviewed Original ResearchConceptsPKB/AktProtein kinase BIRS-1IRS-2IRS-4Insulin stimulationGrb-2Bad phosphorylationInsulin-stimulated mitogen-activated protein kinase activityInsulin receptor substrate (IRS) proteinsProtein kinase B signalingMitogen-activated protein kinase activityProtein kinase activityHuman insulin receptorPhosphorylation of BadKinase B signalingSubstrate proteinsMyeloid progenitor cellsApoptosis of cellsKinase activityKinase BPhosphatidylinositolInsulin receptorInterleukin-3Phosphorylation
1998
The Pleckstrin Homology and Phosphotyrosine Binding Domains of Insulin Receptor Substrate 1 Mediate Inhibition of Apoptosis by Insulin
Yenush L, Zanella C, Uchida T, Bernal D, White M. The Pleckstrin Homology and Phosphotyrosine Binding Domains of Insulin Receptor Substrate 1 Mediate Inhibition of Apoptosis by Insulin. Molecular And Cellular Biology 1998, 18: 6784-6794. PMID: 9774692, PMCID: PMC109262, DOI: 10.1128/mcb.18.11.6784.Peer-Reviewed Original ResearchMeSH KeywordsApoptosisCalcium-Calmodulin-Dependent Protein KinasesCell DivisionCell LineCell SurvivalChromonesDNAInsulinInsulin Receptor Substrate ProteinsInterleukin-3MorpholinesPhosphatidylinositol 3-KinasesPhosphoproteinsPhosphorylationPhosphotyrosineReceptor, InsulinRecombinant Fusion ProteinsRibosomal Protein S6 KinasesConceptsPhosphotyrosine-binding (PTB) domainTyrosine phosphorylation sitesPleckstrin homologyIRS-1 proteinIRS-1Phosphorylation sitesInsulin receptorBinding domainsInsulin receptor substrate (IRS) proteinsReceptor-mediated tyrosine phosphorylationInsulin stimulationChimeric insulin receptorsPKB/AktIL-3 withdrawalIRS proteinsSubstrate proteinsPTB domainKinase cascadeMediated phosphorylationInhibition of apoptosisMyeloid progenitor cellsDiverse biological effectsPhosphatidylinositol 3Protein kinaseTyrosine phosphorylationInsulin receptor substrate (IRS) proteins IRS-1 and IRS-2 differential signaling in the insulin/insulin-like growth factor-I pathways in fetal brown adipocytes.
Valverde A, Lorenzo M, Pons S, White M, Benito M. Insulin receptor substrate (IRS) proteins IRS-1 and IRS-2 differential signaling in the insulin/insulin-like growth factor-I pathways in fetal brown adipocytes. Endocrinology 1998, 12: 688-97. PMID: 9605931, DOI: 10.1210/mend.12.5.0106.Peer-Reviewed Original ResearchMeSH KeywordsAdaptor Proteins, Signal TransducingAdipocytesAdipose Tissue, BrownAmino Acid SequenceAnimalsEnzyme ActivationFetusGRB2 Adaptor ProteinInsulinInsulin Receptor Substrate ProteinsInsulin-Like Growth Factor IIntracellular Signaling Peptides and ProteinsMolecular Sequence DataPhosphatidylinositol 3-KinasesPhosphoproteinsPhosphorylationProtein BindingProteinsRatsRats, WistarReceptor, InsulinSignal TransductionSrc Homology DomainsTyrosineConceptsInsulin/IGFInsulin receptor substrateIRS-1IRS-2Shc proteinsTyrosine phosphorylationInsulin receptor substrate (IRS) proteinsInsulin/insulin-like growth factorFetal rat brown adipocytesIRS-2-associated phosphatidylinositolIRS-2 tyrosine phosphorylationFetal brown adipocytesProtein kinase signal pathwayBrown adipocytesKinase signal pathwayBrown adipocyte proliferationInsulin/insulinSubstrate proteinsSH2 domainGrb-2Thermogenic differentiationFetal brown adipose tissueReceptor substrateFusion proteinInsulin-like growth factor
1996
The Drosophila Insulin Receptor Activates Multiple Signaling Pathways but Requires Insulin Receptor Substrate Proteins for DNA Synthesis
Yenush L, Fernandez R, Myers M, Grammer T, Sun X, Blenis J, Pierce J, Schlessinger J, White M. The Drosophila Insulin Receptor Activates Multiple Signaling Pathways but Requires Insulin Receptor Substrate Proteins for DNA Synthesis. Molecular And Cellular Biology 1996, 16: 2509-2517. PMID: 8628319, PMCID: PMC231240, DOI: 10.1128/mcb.16.5.2509.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsCalcium-Calmodulin-Dependent Protein KinasesCell DivisionCell LineDNADrosophila melanogasterEnzyme ActivationHumansInsulinInsulin Receptor Substrate ProteinsMolecular Sequence DataPhosphatidylinositol 3-KinasesPhosphoproteinsPhosphorylationPhosphotransferases (Alcohol Group Acceptor)PhosphotyrosineProtein Serine-Threonine KinasesReceptor, InsulinRecombinant ProteinsRibosomal Protein S6 KinasesSequence Homology, Amino AcidSignal TransductionThymidineConceptsDrosophila insulin receptorHuman insulin receptorInsulin receptor substrate (IRS) proteinsIRS-1Insulin receptorSubstrate proteinsTyrosine phosphorylation sitesMitogen-activated protein kinaseInsulin-stimulated mitogenesisMultiple signaling pathwaysIRS proteinsMammalian counterpartsYXXM motifsPhosphorylation sitesMammalian cellsTyrosine autophosphorylationProtein kinaseTyrosine phosphorylationSignaling pathwaysPhosphatidylinositolTerminal extensionDNA synthesisProteinHDIRP70S6k