2024
Sustained caloric restriction potentiates insulin action by activating prostacyclin synthase
Merali C, Quinn C, Huffman K, Pieper C, Bogan J, Barrero C, Merali S. Sustained caloric restriction potentiates insulin action by activating prostacyclin synthase. Obesity 2024 PMID: 39420421, DOI: 10.1002/oby.24150.Peer-Reviewed Original ResearchMolecular mechanismsIncreased GLUT4 translocationComplex molecular mechanismsGlucose uptake regulationUBX domainIncreased glucose uptakeGLUT4 translocationGLUT4 functionCaloric restrictionPTGIS expressionProteomic profilingCell surfaceCleavage pathwayInsulin sensitivityHuman adipocytesAdipose tissueGlucose uptakeGLUT4Enhanced insulin sensitivityInsulin receptor densityInsulin actionRisk of metabolic disordersCell membraneProstacyclin synthaseMonths of CR
2022
Inhibitors of RNA and protein synthesis cause Glut4 translocation and increase glucose uptake in adipocytes
Meriin AB, Zaarur N, Bogan JS, Kandror KV. Inhibitors of RNA and protein synthesis cause Glut4 translocation and increase glucose uptake in adipocytes. Scientific Reports 2022, 12: 15640. PMID: 36123369, PMCID: PMC9485115, DOI: 10.1038/s41598-022-19534-5.Peer-Reviewed Original ResearchConceptsInhibitors of RNAGLUT4 translocationProtein synthesisEndocytosis of GLUT4Glucose uptakeRecycling of transferrinGlucose transporter 4Actinomycin DBiosynthesis de novoSignaling proteinsPlasma membraneTransporter 4Intracellular retentionContinuous RNATranslocationRNADe novoAdipocytesVesiclesInhibitorsTBC1D4UptakeEndocytosisGLUT4Exocytosis
2018
Usp25m protease regulates ubiquitin-like processing of TUG proteins to control GLUT4 glucose transporter translocation in adipocytes
Habtemichael EN, Li DT, Alcázar-Román A, Westergaard XO, Li M, Petersen MC, Li H, DeVries SG, Li E, Julca-Zevallos O, Wolenski JS, Bogan JS. Usp25m protease regulates ubiquitin-like processing of TUG proteins to control GLUT4 glucose transporter translocation in adipocytes. Journal Of Biological Chemistry 2018, 293: 10466-10486. PMID: 29773651, PMCID: PMC6036200, DOI: 10.1074/jbc.ra118.003021.Peer-Reviewed Original ResearchMeSH KeywordsAdipocytesAnimalsCarrier ProteinsCell MembraneCells, CulturedGlucoseGlucose Transporter Type 4Hypoglycemic AgentsInsulinIntracellular Signaling Peptides and ProteinsKinesinsMaleMiceMice, Inbred C57BLMotor ActivityProtein TransportProteolysisRatsRats, Sprague-DawleySignal TransductionUbiquitinUbiquitin ThiolesteraseConceptsGLUT4 storage vesiclesTUG cleavageGolgi matrixPlasma membraneGLUT4 glucose transporter translocationMicrotubule-based movementUbiquitin-like proteinGLUT4 glucose transportersStorage vesiclesGlucose transporter translocationAttenuation of insulinKinesin motor proteinsGLUT4 vesiclesSpecialized vesiclesGLUT4 translocationTransporter translocationSplice formsMotor proteinsProtein trapProtein abundanceProteolytic pathwayDiet-induced insulin resistanceEndoproteolytic cleavageGlucose transporterProteolytic processing
2015
Coordinated Regulation of Vasopressin Inactivation and Glucose Uptake by Action of TUG Protein in Muscle*
Habtemichael EN, Alcázar-Román A, Rubin BR, Grossi LR, Belman JP, Julca O, Löffler MG, Li H, Chi NW, Samuel VT, Bogan JS. Coordinated Regulation of Vasopressin Inactivation and Glucose Uptake by Action of TUG Protein in Muscle*. Journal Of Biological Chemistry 2015, 290: 14454-14461. PMID: 25944897, PMCID: PMC4505512, DOI: 10.1074/jbc.c115.639203.Peer-Reviewed Original ResearchConceptsInsulin-regulated aminopeptidaseVesicle translocationGLUT4 intracellular retentionGlucose uptakeT-tubule fractionTransgenic miceTransmembrane aminopeptidaseAQP2 water channelsTUG ProteinCoordinated regulationGLUT4 translocationInsulin stimulationPhysiological importanceGlucose transporterProteolytic processingIntracellular retentionTranslocationWater homeostasisMuscle cellsGLUT4Skeletal muscleShort peptidesProteolysisProteinAbundance