2018
Insulin regulates POMC neuronal plasticity to control glucose metabolism
Dodd GT, Michael NJ, Lee-Young RS, Mangiafico SP, Pryor JT, Munder AC, Simonds SE, Brüning JC, Zhang ZY, Cowley MA, Andrikopoulos S, Horvath TL, Spanswick D, Tiganis T. Insulin regulates POMC neuronal plasticity to control glucose metabolism. ELife 2018, 7: e38704. PMID: 30230471, PMCID: PMC6170188, DOI: 10.7554/elife.38704.Peer-Reviewed Original ResearchConceptsHepatic glucose productionPOMC neuronsSuch adaptive processesNutritional cuesGene expressionMolecular mechanismsGlucose metabolismInsulin receptorDiet-induced obesityTCPTPNeuronal plasticityAdaptive processHypothalamic neuronsNeuronal excitabilityGlucose productionMetabolismInsulinNeuronsRepressionNeural responsesObesityRegulationMechanismPlasticityExpression
2016
Astrocytic Insulin Signaling Couples Brain Glucose Uptake with Nutrient Availability
García-Cáceres C, Quarta C, Varela L, Gao Y, Gruber T, Legutko B, Jastroch M, Johansson P, Ninkovic J, Yi CX, Le Thuc O, Szigeti-Buck K, Cai W, Meyer CW, Pfluger PT, Fernandez AM, Luquet S, Woods SC, Torres-Alemán I, Kahn CR, Götz M, Horvath TL, Tschöp MH. Astrocytic Insulin Signaling Couples Brain Glucose Uptake with Nutrient Availability. Cell 2016, 166: 867-880. PMID: 27518562, PMCID: PMC8961449, DOI: 10.1016/j.cell.2016.07.028.Peer-Reviewed Original ResearchConceptsBlood-brain barrierSystemic glucose metabolismInsulin receptorGlucose metabolismGlucose uptakeGlial fibrillary acidic proteinBrain glucose uptakePostnatal ablationHypothalamic glucose sensingGlutamate-aspartate transporterFibrillary acidic proteinPositron emission tomographyMelanocortin neuronsKO miceGlucose levelsAstrocyte morphologyNormal responseEmission tomographyGlucose-induced activationAcidic proteinAspartate transporterCircuit connectivityInsulinGlucose availabilityMitochondrial function
2009
Divergent Regulation of Energy Expenditure and Hepatic Glucose Production by Insulin Receptor in Agouti-Related Protein and POMC Neurons
Lin HV, Plum L, Ono H, Gutiérrez-Juárez R, Shanabrough M, Borok E, Horvath TL, Rossetti L, Accili D. Divergent Regulation of Energy Expenditure and Hepatic Glucose Production by Insulin Receptor in Agouti-Related Protein and POMC Neurons. Diabetes 2009, 59: 337-346. PMID: 19933998, PMCID: PMC2809966, DOI: 10.2337/db09-1303.Peer-Reviewed Original ResearchConceptsHepatic glucose productionAgRP neuronsPOMC neuronsInsulin receptorEnergy expenditureInsulin actionGlucose productionInhibitory synaptic contactsSulfonylurea receptor 1 (SUR1) subunitsCentral nervous systemL1 miceProopiomelanocortin neuronsHypothalamic insulinDivergent regulationInsulin resistanceSynaptic contactsInsulin suppressionGlucose metabolismHypothalamic deficiencyNervous systemLocomotor activityDecreased expressionEnergy homeostasisINSRNeurons