2020
A Membrane-Bound Diacylglycerol Species Induces PKCϵ-Mediated Hepatic Insulin Resistance
Lyu K, Zhang Y, Zhang D, Kahn M, Ter Horst KW, Rodrigues MRS, Gaspar RC, Hirabara SM, Luukkonen PK, Lee S, Bhanot S, Rinehart J, Blume N, Rasch MG, Serlie MJ, Bogan JS, Cline GW, Samuel VT, Shulman GI. A Membrane-Bound Diacylglycerol Species Induces PKCϵ-Mediated Hepatic Insulin Resistance. Cell Metabolism 2020, 32: 654-664.e5. PMID: 32882164, PMCID: PMC7544641, DOI: 10.1016/j.cmet.2020.08.001.Peer-Reviewed Original ResearchConceptsPlasma membraneEndoplasmic reticulumHigh-fat diet-induced hepatic insulin resistanceSubcellular fractionation methodInsulin receptor kinaseKey lipid speciesHepatic insulin resistanceDiet-induced hepatic insulin resistanceReceptor kinaseDiacylglycerol acyltransferase 2Molecular mechanismsAcute knockdownPhosphorylationLipid dropletsLipid speciesAcyltransferase 2KnockdownLiver-specific overexpressionDAG accumulationPKCϵDAG contentMembraneFractionation methodKinaseMitochondria
2018
Striatal dopamine regulates systemic glucose metabolism in humans and mice
Ter Horst KW, Lammers NM, Trinko R, Opland DM, Figee M, Ackermans MT, Booij J, van den Munckhof P, Schuurman PR, Fliers E, Denys D, DiLeone RJ, la Fleur SE, Serlie MJ. Striatal dopamine regulates systemic glucose metabolism in humans and mice. Science Translational Medicine 2018, 10 PMID: 29794060, DOI: 10.1126/scitranslmed.aar3752.Peer-Reviewed Original ResearchConceptsSystemic glucose metabolismDeep brain stimulationPeripheral insulin sensitivityGlucose metabolismInsulin sensitivityStriatal dopamineBilateral deep brain stimulationStriatal neuronal activityPeripheral glucose metabolismReceptor-expressing neuronsStriatal dopamine signalingObservational human studiesNondiabetic patientsInsulin requirementsDopamine depletionGlucose toleranceObsessive-compulsive disorderDiabetes patientsInternal capsuleStriatal areasDopamine releaseHealthy subjectsAnterior limbNucleus accumbensNeuronal activity
2013
Obesity Activates a Program of Lysosomal-Dependent Lipid Metabolism in Adipose Tissue Macrophages Independently of Classic Activation
Xu X, Grijalva A, Skowronski A, van Eijk M, Serlie MJ, Ferrante AW. Obesity Activates a Program of Lysosomal-Dependent Lipid Metabolism in Adipose Tissue Macrophages Independently of Classic Activation. Cell Metabolism 2013, 18: 816-830. PMID: 24315368, PMCID: PMC3939841, DOI: 10.1016/j.cmet.2013.11.001.Peer-Reviewed Original ResearchConceptsAdipose tissue macrophagesAdipose tissueInflammatory phenotypeTissue macrophagesLipid metabolismObesity-induced inflammationSystemic immune responsesModel of obesityRecruitment of macrophagesImpairs lipid metabolismKey metabolic tissuesNoninflammatory functionsImmune cellsImmune responseClassic activationObesityMetabolic tissuesMacrophagesExcess lipidsLipid catabolismM1 stateTissueMetabolismLipid contentPhenotype