2006
The reciprocal stability of FOXO1 and IRS2 creates a regulatory circuit that controls insulin signaling.
Guo S, Dunn S, White M. The reciprocal stability of FOXO1 and IRS2 creates a regulatory circuit that controls insulin signaling. Endocrinology 2006, 20: 3389-99. PMID: 16916938, DOI: 10.1210/me.2006-0092.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCells, CulturedFibroblastsForkhead Box Protein O1Forkhead Transcription FactorsInsulinInsulin Receptor Substrate ProteinsIntracellular Signaling Peptides and ProteinsMiceMice, Mutant StrainsPhosphatidylinositol 3-KinasesPhosphoproteinsProtein KinasesProto-Oncogene Proteins c-aktRecombinant ProteinsSignal TransductionTOR Serine-Threonine KinasesTyrosineConceptsInsulin stimulationWild-type mouse embryo fibroblastsInsulin-receptor substrate IRS1Metastatic mammary tumor cellsProlonged insulin stimulationMouse embryo fibroblastsTranscription factor FOXO1Substrates IRS1FoxO phosphorylationRegulatory circuitsNuclear exclusionWT MEFsTyrosine phosphorylationGene expressionMetabolic regulationEmbryo fibroblastsIRS1 expressionMammary tumor cellsIRS2 expressionCell growthIRS2AktIRS1MEFsPancreatic beta cells
2002
c-Jun N-terminal Kinase (JNK) Mediates Feedback Inhibition of the Insulin Signaling Cascade*
Lee Y, Giraud J, Davis R, White M. c-Jun N-terminal Kinase (JNK) Mediates Feedback Inhibition of the Insulin Signaling Cascade*. Journal Of Biological Chemistry 2002, 278: 2896-2902. PMID: 12417588, DOI: 10.1074/jbc.m208359200.Peer-Reviewed Original ResearchMeSH KeywordsAmino Acid SequenceAnimalsBinding SitesCell LineConsensus SequenceCulture Media, ConditionedHumansInsulinInsulin Receptor Substrate ProteinsJNK Mitogen-Activated Protein KinasesMiceMice, KnockoutMitogen-Activated Protein Kinase 8Mitogen-Activated Protein Kinase 9Mitogen-Activated Protein KinasesMolecular Sequence DataPhosphoproteinsPhosphorylationRatsSignal TransductionTransfectionConceptsC-Jun N-terminal kinaseN-terminal kinaseDirect bindingInsulin-stimulated tyrosine phosphorylationInsulin receptor substrate-1Interaction of JNKInsulin Signaling CascadeReceptor substrate-1Mouse embryo fibroblastsActivation of JNKFeedback inhibitionNegative feedback regulatorPhosphorylation of IRS1Cellular proteinsCell-permeable peptideTyrosine phosphorylationInsulin signalSignaling cascadesIRS1 proteinJNK activitySubstrate-1Insulin stimulationEmbryo fibroblastsPhosphorylationAkt phosphorylation
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