2023
MAD2-Dependent Insulin Receptor Endocytosis Regulates Metabolic Homeostasis.
Park J, Hall C, Hubbard B, LaMoia T, Gaspar R, Nasiri A, Li F, Zhang H, Kim J, Haeusler R, Accili D, Shulman G, Yu H, Choi E. MAD2-Dependent Insulin Receptor Endocytosis Regulates Metabolic Homeostasis. Diabetes 2023, 72: 1781-1794. PMID: 37725942, PMCID: PMC10658066, DOI: 10.2337/db23-0314.Peer-Reviewed Original ResearchConceptsIR endocytosisInsulin receptor endocytosisCell division regulatorsInsulin receptorProlongs insulin actionReceptor endocytosisTranscriptomic profilesInsulin stimulationEndocytosisMetabolic homeostasisCell surfaceGenetic ablationMetabolic functionsInsulin actionP31cometMad2BubR1DisruptionSignalingRegulatorHomeostasisAdipose tissueInteractionHepatic fat accumulationMetabolism
2022
Distinct subcellular localisation of intramyocellular lipids and reduced PKCε/PKCθ activity preserve muscle insulin sensitivity in exercise-trained mice
Gaspar R, Lyu K, Hubbard B, Leitner B, Luukkonen P, Hirabara S, Sakuma I, Nasiri A, Zhang D, Kahn M, Cline G, Pauli J, Perry R, Petersen K, Shulman G. Distinct subcellular localisation of intramyocellular lipids and reduced PKCε/PKCθ activity preserve muscle insulin sensitivity in exercise-trained mice. Diabetologia 2022, 66: 567-578. PMID: 36456864, PMCID: PMC11194860, DOI: 10.1007/s00125-022-05838-8.Peer-Reviewed Original ResearchConceptsProtein kinase CsSubcellular compartmentsDistinct subcellular localisationMuscle insulin sensitivityMultiple subcellular compartmentsInsulin receptor kinaseNovel protein kinase CsActivation of PKCεSubcellular localisationPKCθ translocationReceptor kinasePlasma membraneSubcellular distributionTriacylglycerol contentCrucial pathwaysIntramuscular triacylglycerol contentRC miceDiacylglycerolConclusions/interpretationThese resultsPKCεPM compartmentPhosphorylationMuscle triacylglycerol contentSkeletal muscleRecent findingsDyrk1b promotes hepatic lipogenesis by bypassing canonical insulin signaling and directly activating mTORC2 in mice
Bhat N, Narayanan A, Fathzadeh M, Kahn M, Zhang D, Goedeke L, Neogi A, Cardone RL, Kibbey RG, Fernandez-Hernando C, Ginsberg HN, Jain D, Shulman G, Mani A. Dyrk1b promotes hepatic lipogenesis by bypassing canonical insulin signaling and directly activating mTORC2 in mice. Journal Of Clinical Investigation 2022, 132: e153724. PMID: 34855620, PMCID: PMC8803348, DOI: 10.1172/jci153724.Peer-Reviewed Original ResearchConceptsDe novo lipogenesisNonalcoholic steatohepatitisInsulin resistanceHepatic lipogenesisElevated de novo lipogenesisNonalcoholic fatty liver diseaseFatty liver diseaseLiver of patientsHepatic glycogen storageHigh-sucrose dietHepatic insulin resistanceFatty acid uptakeMetabolic syndromeLiver diseaseHepatic steatosisTriacylglycerol secretionNovo lipogenesisHepatic insulinTherapeutic targetImpaired activationAcid uptakeGlycogen storageMouse liverLiverLipogenesis
2021
Insulin-stimulated endoproteolytic TUG cleavage links energy expenditure with glucose uptake
Habtemichael EN, Li DT, Camporez JP, Westergaard XO, Sales CI, Liu X, López-Giráldez F, DeVries SG, Li H, Ruiz DM, Wang KY, Sayal BS, González Zapata S, Dann P, Brown SN, Hirabara S, Vatner DF, Goedeke L, Philbrick W, Shulman GI, Bogan JS. Insulin-stimulated endoproteolytic TUG cleavage links energy expenditure with glucose uptake. Nature Metabolism 2021, 3: 378-393. PMID: 33686286, PMCID: PMC7990718, DOI: 10.1038/s42255-021-00359-x.Peer-Reviewed Original ResearchConceptsTUG cleavageGlucose uptakeProtein degradation pathwaysGLUT4 glucose transportersCoactivator PGC-1αC-terminal cleavage productInsulin-stimulated glucose uptakeAte1 arginyltransferaseGene expressionPhysiological relevanceWhole-body energy expenditureGlucose transporterPeroxisome proliferator-activated receptorCell surfacePGC-1αProtein 1Proliferator-activated receptorDegradation pathwayEffect of insulinCleavage pathwayAdipose cellsCleavage productsPathwayCleavageEnergy expenditureShort-term overnutrition induces white adipose tissue insulin resistance through sn-1,2-diacylglycerol – PKCε – insulin receptorT1160 phosphorylation
Lyu K, Zhang D, Song J, Li X, Perry RJ, Samuel VT, Shulman GI. Short-term overnutrition induces white adipose tissue insulin resistance through sn-1,2-diacylglycerol – PKCε – insulin receptorT1160 phosphorylation. JCI Insight 2021, 6: e139946. PMID: 33411692, PMCID: PMC7934919, DOI: 10.1172/jci.insight.139946.Peer-Reviewed Original ResearchConceptsInsulin resistanceInsulin actionAdipose tissue insulin resistanceTissue insulin resistanceWT control miceHyperinsulinemic-euglycemic clampShort-term HFDTissue insulin actionAdipose tissue insulin actionDiet-fed ratsPotential therapeutic targetHFD feedingControl miceInsulin sensitivityTherapeutic targetLipolysis suppressionImpairs insulinHFDPKCε activationGlucose uptakeΕ activationMiceDiacylglycerol accumulationRecent evidenceProtein kinase C
2020
Mechanisms by which adiponectin reverses high fat diet-induced insulin resistance in mice
Li X, Zhang D, Vatner DF, Goedeke L, Hirabara SM, Zhang Y, Perry RJ, Shulman GI. Mechanisms by which adiponectin reverses high fat diet-induced insulin resistance in mice. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 32584-32593. PMID: 33293421, PMCID: PMC7768680, DOI: 10.1073/pnas.1922169117.Peer-Reviewed Original ResearchConceptsEpididymal white adipose tissueInsulin resistanceAdiponectin treatmentAdipose tissueHigh-fat diet-induced insulin resistanceType 2 diabetes mellitusWhole-body insulin resistanceDiet-induced insulin resistanceSkeletal muscleEctopic lipid storageReverses insulin resistanceInsulin-mediated suppressionMuscle fatty acid oxidationEndogenous glucose productionMuscle insulin resistanceWhite adipose tissueLipoprotein lipase activityMuscle fat oxidationPKCε translocationInsulin-stimulated glucose uptakeFatty acid oxidationTAG uptakeDiabetes mellitusMuscle sensitivityAkt serine phosphorylationHepatic Insulin Resistance Is Not Pathway Selective in Humans With Nonalcoholic Fatty Liver Disease.
Ter Horst KW, Vatner DF, Zhang D, Cline GW, Ackermans MT, Nederveen AJ, Verheij J, Demirkiran A, van Wagensveld BA, Dallinga-Thie GM, Nieuwdorp M, Romijn JA, Shulman GI, Serlie MJ. Hepatic Insulin Resistance Is Not Pathway Selective in Humans With Nonalcoholic Fatty Liver Disease. Diabetes Care 2020, 44: 489-498. PMID: 33293347, PMCID: PMC7818337, DOI: 10.2337/dc20-1644.Peer-Reviewed Original ResearchConceptsNonalcoholic fatty liver diseaseDe novo lipogenesisFatty liver diseaseBariatric surgeryLiver diseaseImpaired insulin-mediated suppressionGlucose productionHepatic de novo lipogenesisPeripheral glucose metabolismHyperinsulinemic-euglycemic clampType 2 diabetesInsulin-mediated suppressionInsulin-resistant subjectsHepatic insulin resistanceLiver biopsy samplesSuppress glucose productionLipogenic transcription factorsInsulin-mediated regulationObese subjectsInsulin resistanceAcute increaseNovo lipogenesisGlucose metabolismBiopsy samplesParadoxical increaseEffect of a Low-Fat Vegan Diet on Body Weight, Insulin Sensitivity, Postprandial Metabolism, and Intramyocellular and Hepatocellular Lipid Levels in Overweight Adults
Kahleova H, Petersen KF, Shulman GI, Alwarith J, Rembert E, Tura A, Hill M, Holubkov R, Barnard ND. Effect of a Low-Fat Vegan Diet on Body Weight, Insulin Sensitivity, Postprandial Metabolism, and Intramyocellular and Hepatocellular Lipid Levels in Overweight Adults. JAMA Network Open 2020, 3: e2025454. PMID: 33252690, PMCID: PMC7705596, DOI: 10.1001/jamanetworkopen.2020.25454.Peer-Reviewed Original ResearchMeSH KeywordsAbsorptiometry, PhotonAdultAgedBlood GlucoseBody CompositionBody WeightC-PeptideCholesterolCholesterol, HDLCholesterol, LDLDiet, Fat-RestrictedDiet, VeganEnergy IntakeEnergy MetabolismFemaleGlycated HemoglobinHepatocytesHumansInsulinInsulin ResistanceIntra-Abdominal FatLipid MetabolismLiverMaleMiddle AgedMuscle Fibers, SkeletalMuscle, SkeletalObesityOverweightPostprandial PeriodProton Magnetic Resonance SpectroscopyTriglyceridesConceptsLow-fat vegan dietHomeostasis model assessment indexIntramyocellular lipid levelsModel assessment indexIntervention groupLipid levelsBody weightInsulin resistancePostprandial metabolismVegan dietOverweight adultsDietary interventionInsulin sensitivityThermic effectControl groupPlant-based dietary interventionDual X-ray absorptiometryInsulin resistance leadExcess body weightInsulin sensitivity indexType 2 diabetesMajor health problemProton magnetic resonance spectroscopyX-ray absorptiometrySubset of participantsMetabolic control analysis of hepatic glycogen synthesis in vivo
Nozaki Y, Petersen MC, Zhang D, Vatner DF, Perry RJ, Abulizi A, Haedersdal S, Zhang XM, Butrico GM, Samuel VT, Mason GF, Cline GW, Petersen KF, Rothman DL, Shulman GI. Metabolic control analysis of hepatic glycogen synthesis in vivo. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 8166-8176. PMID: 32188779, PMCID: PMC7149488, DOI: 10.1073/pnas.1921694117.Peer-Reviewed Original ResearchOne-leg inactivity induces a reduction in mitochondrial oxidative capacity, intramyocellular lipid accumulation and reduced insulin signalling upon lipid infusion: a human study with unilateral limb suspension
Bilet L, Phielix E, van de Weijer T, Gemmink A, Bosma M, Moonen-Kornips E, Jorgensen JA, Schaart G, Zhang D, Meijer K, Hopman M, Hesselink MKC, Ouwens DM, Shulman GI, Schrauwen-Hinderling VB, Schrauwen P. One-leg inactivity induces a reduction in mitochondrial oxidative capacity, intramyocellular lipid accumulation and reduced insulin signalling upon lipid infusion: a human study with unilateral limb suspension. Diabetologia 2020, 63: 1211-1222. PMID: 32185462, PMCID: PMC7228997, DOI: 10.1007/s00125-020-05128-1.Peer-Reviewed Original ResearchConceptsMitochondrial oxidative capacityLow mitochondrial oxidative capacityLipid infusionInsulin resistancePhysical inactivityOxidative capacityLipid-induced insulin resistanceUnilateral lower limb suspensionConclusions/interpretationTogetherIntramyocellular lipid depositionMusculus tibialis anteriorChronic metabolic disorderIntramyocellular lipid accumulationType 2 diabetesReduced insulin sensitivityMuscle fat accumulationMusculus vastus lateralisMitochondrial functionUnilateral limb suspensionIMCL contentContralateral legInsulin sensitivityResultsIn vivoTibialis anteriorFat accumulationEffect of a ketogenic diet on hepatic steatosis and hepatic mitochondrial metabolism in nonalcoholic fatty liver disease
Luukkonen PK, Dufour S, Lyu K, Zhang XM, Hakkarainen A, Lehtimäki TE, Cline GW, Petersen KF, Shulman GI, Yki-Järvinen H. Effect of a ketogenic diet on hepatic steatosis and hepatic mitochondrial metabolism in nonalcoholic fatty liver disease. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 7347-7354. PMID: 32179679, PMCID: PMC7132133, DOI: 10.1073/pnas.1922344117.Peer-Reviewed Original ResearchMeSH KeywordsBody CompositionCitrate (si)-SynthaseDiet, KetogenicFatty AcidsFatty Acids, NonesterifiedFatty LiverFemaleHumansInsulinInsulin ResistanceLipoproteins, VLDLLiverMaleMiddle AgedMitochondriaNon-alcoholic Fatty Liver DiseaseObesityOverweightOxidation-ReductionPyruvate CarboxylaseTriglyceridesConceptsNonalcoholic fatty liver diseaseFatty liver diseaseIntrahepatic triglyceridesKetogenic dietHepatic insulin resistanceNonesterified fatty acidsInsulin resistanceLiver diseaseOverweight/obese subjectsHepatic mitochondrial redox stateSerum insulin concentrationsHepatic mitochondrial metabolismProton magnetic resonance spectroscopyStable isotope infusionKD dietObese subjectsFatty acidsPlasma leptinHepatic steatosisInsulin concentrationsNEFA concentrationsBody weightTriiodothyronine concentrationsIsotope infusionWeight lossMechanistic Links between Obesity, Insulin, and Cancer
Perry RJ, Shulman GI. Mechanistic Links between Obesity, Insulin, and Cancer. Trends In Cancer 2020, 6: 75-78. PMID: 32061306, PMCID: PMC7214048, DOI: 10.1016/j.trecan.2019.12.003.Peer-Reviewed Reviews, Practice Guidelines, Standards, and Consensus Statements
2019
Adipsin preserves beta cells in diabetic mice and associates with protection from type 2 diabetes in humans
Gómez-Banoy N, Guseh JS, Li G, Rubio-Navarro A, Chen T, Poirier B, Putzel G, Rosselot C, Pabón MA, Camporez JP, Bhambhani V, Hwang SJ, Yao C, Perry RJ, Mukherjee S, Larson MG, Levy D, Dow LE, Shulman GI, Dephoure N, Garcia-Ocana A, Hao M, Spiegelman BM, Ho JE, Lo JC. Adipsin preserves beta cells in diabetic mice and associates with protection from type 2 diabetes in humans. Nature Medicine 2019, 25: 1739-1747. PMID: 31700183, PMCID: PMC7256970, DOI: 10.1038/s41591-019-0610-4.Peer-Reviewed Original ResearchConceptsType 2 diabetesBody mass indexBeta cellsDiabetic miceInsulin secretagoguesDiabetic db/db miceDb/db micePancreatic beta-cell massBeta cell healthBeta-cell failureBeta-cell lossBeta-cell massComplement components C3aMiddle-aged adultsHuman islet cellsAlternative complement pathwayComplement factor DFuture diabetesMass indexInsulin levelsDb miceInsulin resistanceLower riskType 2Cell loss
2017
Pathogenesis of hypothyroidism-induced NAFLD is driven by intra- and extrahepatic mechanisms
Ferrandino G, Kaspari RR, Spadaro O, Reyna-Neyra A, Perry RJ, Cardone R, Kibbey RG, Shulman GI, Dixit VD, Carrasco N. Pathogenesis of hypothyroidism-induced NAFLD is driven by intra- and extrahepatic mechanisms. Proceedings Of The National Academy Of Sciences Of The United States Of America 2017, 114: e9172-e9180. PMID: 29073114, PMCID: PMC5664516, DOI: 10.1073/pnas.1707797114.Peer-Reviewed Original ResearchConceptsNonalcoholic fatty liver diseaseDe novo lipogenesisAdipose tissue lipolysisHepatic insulin resistanceThyroid hormonesHypothyroid miceImpaired suppressionInsulin resistanceTissue lipolysisInsulin secretionHigh thyroid-stimulating hormone levelsRegulation of THThyroid-stimulating hormone levelsLipid utilizationFatty liver diseaseSerum glucose levelsEndogenous glucose productionLow thyroid hormoneFatty acidsHepatic lipid utilizationLiver diseaseSevere hypothyroidismHormone levelsProfound suppressionGlucose levels
2014
Leptin reverses diabetes by suppression of the hypothalamic-pituitary-adrenal axis
Perry RJ, Zhang XM, Zhang D, Kumashiro N, Camporez JP, Cline GW, Rothman DL, Shulman GI. Leptin reverses diabetes by suppression of the hypothalamic-pituitary-adrenal axis. Nature Medicine 2014, 20: 759-763. PMID: 24929951, PMCID: PMC4344321, DOI: 10.1038/nm.3579.Peer-Reviewed Original ResearchMetformin suppresses gluconeogenesis by inhibiting mitochondrial glycerophosphate dehydrogenase
Madiraju AK, Erion DM, Rahimi Y, Zhang XM, Braddock DT, Albright RA, Prigaro BJ, Wood JL, Bhanot S, MacDonald MJ, Jurczak MJ, Camporez JP, Lee HY, Cline GW, Samuel VT, Kibbey RG, Shulman GI. Metformin suppresses gluconeogenesis by inhibiting mitochondrial glycerophosphate dehydrogenase. Nature 2014, 510: 542-546. PMID: 24847880, PMCID: PMC4074244, DOI: 10.1038/nature13270.Peer-Reviewed Original Research
2010
Standard operating procedures for describing and performing metabolic tests of glucose homeostasis in mice
Ayala JE, Consortium F, Samuel V, Morton G, Obici S, Croniger C, Shulman G, Wasserman D, McGuinness O. Standard operating procedures for describing and performing metabolic tests of glucose homeostasis in mice. Disease Models & Mechanisms 2010, 3: 525-534. PMID: 20713647, PMCID: PMC2938392, DOI: 10.1242/dmm.006239.Peer-Reviewed Original Research
2005
Reduced mitochondrial density and increased IRS-1 serine phosphorylation in muscle of insulin-resistant offspring of type 2 diabetic parents
Morino K, Petersen KF, Dufour S, Befroy D, Frattini J, Shatzkes N, Neschen S, White MF, Bilz S, Sono S, Pypaert M, Shulman GI. Reduced mitochondrial density and increased IRS-1 serine phosphorylation in muscle of insulin-resistant offspring of type 2 diabetic parents. Journal Of Clinical Investigation 2005, 115: 3587-3593. PMID: 16284649, PMCID: PMC1280967, DOI: 10.1172/jci25151.Peer-Reviewed Original ResearchMeSH KeywordsBiopsyBlood GlucoseBlotting, WesternBody Mass IndexBody WeightDiabetes Mellitus, Type 2DNA, MitochondrialFamily HealthFemaleGene Expression RegulationGlucose Clamp TechniqueGlucose Tolerance TestHumansHyperinsulinismImmunoprecipitationInsulinInsulin Receptor Substrate ProteinsInsulin ResistanceLipidsMaleMicroscopy, ElectronMicroscopy, Electron, TransmissionMitochondriaMusclesPhosphoproteinsPhosphorylationProtein Serine-Threonine KinasesReverse Transcriptase Polymerase Chain ReactionRNA, MessengerSerineSignal TransductionTime FactorsTranscription, GeneticTriglyceridesConceptsInsulin-resistant offspringIR offspringType 2 diabetesInsulin-stimulated muscle glucose uptakeType 2 diabetic parentsIntramyocellular lipid contentHyperinsulinemic-euglycemic clampMuscle glucose uptakeIRS-1 serine phosphorylationMuscle mitochondrial densityMitochondrial densityMuscle biopsy samplesSerine kinase cascadeInsulin-stimulated Akt activationDiabetic parentsInsulin resistanceControl subjectsBiopsy samplesGlucose uptakeLipid accumulationMitochondrial dysfunctionInsulin signalingAkt activationEarly defectsMuscle
2004
Impaired Mitochondrial Activity in the Insulin-Resistant Offspring of Patients with Type 2 Diabetes
Petersen KF, Dufour S, Befroy D, Garcia R, Shulman GI. Impaired Mitochondrial Activity in the Insulin-Resistant Offspring of Patients with Type 2 Diabetes. New England Journal Of Medicine 2004, 350: 664-671. PMID: 14960743, PMCID: PMC2995502, DOI: 10.1056/nejmoa031314.Peer-Reviewed Original ResearchMeSH KeywordsAdenosine TriphosphateAdipose TissueBlood GlucoseDiabetes Mellitus, Type 2Fatty AcidsFemaleGlucoseGlucose Clamp TechniqueGlucose Tolerance TestGlycerolHumansInsulinInsulin ResistanceLipolysisMagnetic Resonance SpectroscopyMaleMitochondriaMuscle, SkeletalOxidative PhosphorylationTriglyceridesConceptsInsulin-resistant offspringType 2 diabetesIntramyocellular lipid contentInsulin-sensitive control subjectsMagnetic resonance spectroscopy studyInsulin resistanceControl subjectsProton magnetic resonance spectroscopy studyHyperinsulinemic-euglycemic clamp studiesTumor necrosis factor alphaImpaired mitochondrial activityIntrahepatic triglyceride contentDevelopment of diabetesChildren of patientsInsulin-resistant subjectsNecrosis factor alphaSensitivity of liverInsulin-stimulated ratesFatty acid metabolismMitochondrial oxidative phosphorylation activityInterleukin-6Intramyocellular lipidsPlasma concentrationsFactor alphaClamp studies
2003
Mitochondrial Dysfunction in the Elderly: Possible Role in Insulin Resistance
Petersen KF, Befroy D, Dufour S, Dziura J, Ariyan C, Rothman DL, DiPietro L, Cline GW, Shulman GI. Mitochondrial Dysfunction in the Elderly: Possible Role in Insulin Resistance. Science 2003, 300: 1140-1142. PMID: 12750520, PMCID: PMC3004429, DOI: 10.1126/science.1082889.Peer-Reviewed Original ResearchMeSH KeywordsAdipose TissueAdolescentAdultAgedAged, 80 and overAgingBlood GlucoseBody Mass IndexFemaleHumansInsulinInsulin ResistanceLiverMaleMiddle AgedMitochondriaMitochondrial DiseasesMuscle, SkeletalNuclear Magnetic Resonance, BiomolecularOxidation-ReductionOxygen ConsumptionPhosphorylationTriglyceridesConceptsInsulin resistanceInsulin-stimulated muscle glucose metabolismType 2 diabetesMuscle glucose metabolismLean body massElderly study participantsAge-associated declineMitochondrial function contributesFat massFat accumulationGlucose metabolismYoung controlsStudy participantsLiver tissueFunction contributesMitochondrial dysfunctionYounger participantsPossible roleMitochondrial oxidativeBody massMagnetic resonance spectroscopyParticipantsDiabetesDysfunctionPathogenesis