2017
Endothelial HIF-1α Enables Hypothalamic Glucose Uptake to Drive POMC Neurons
Varela L, Suyama S, Huang Y, Shanabrough M, Tschöp M, Gao XB, Giordano FJ, Horvath TL. Endothelial HIF-1α Enables Hypothalamic Glucose Uptake to Drive POMC Neurons. Diabetes 2017, 66: db161106. PMID: 28292966, PMCID: PMC5440016, DOI: 10.2337/db16-1106.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBehavior, AnimalBlotting, WesternEndotheliumEnergy MetabolismFood DeprivationGene Knockdown TechniquesGlucoseHyperphagiaHypothalamusHypoxia-Inducible Factor 1, alpha SubunitImmunohistochemistryMiceMicroscopy, ElectronMitochondriaNeuronsPatch-Clamp TechniquesPro-OpiomelanocortinReal-Time Polymerase Chain ReactionConceptsPOMC neuronsGlucose uptakePOMC neuronal activityHypothalamic proopiomelanocortin (POMC) neuronsHypoxia-inducible factor-1αProopiomelanocortin neuronsVascular impairmentGlucose administrationMetabolic disordersNeuronal activityMetabolic environmentFactor-1αImpaired functioningEndothelial cellsNeuronsFood deprivationVivoCentral controlHypothalamusMiceAdministrationUptakeImpairment
2016
Elevated O-GlcNAcylation promotes gastric cancer cells proliferation by modulating cell cycle related proteins and ERK 1/2 signaling
Jiang M, Qiu Z, Zhang S, Fan X, Cai X, Xu B, Li X, Zhou J, Zhang X, Chu Y, Wang W, Liang J, Horvath T, Yang X, Wu K, Nie Y, Fan D. Elevated O-GlcNAcylation promotes gastric cancer cells proliferation by modulating cell cycle related proteins and ERK 1/2 signaling. Oncotarget 2016, 7: 61390-61402. PMID: 27542217, PMCID: PMC5308659, DOI: 10.18632/oncotarget.11359.Peer-Reviewed Original ResearchMeSH KeywordsAcetylglucosamineAnimalsCell CycleCell Line, TumorCell ProliferationCyclin D1Cyclin-Dependent Kinase 2Down-RegulationFemaleGene Knockdown TechniquesHumansMaleMAP Kinase Signaling SystemMiceMice, Inbred BALB CMice, NudeMiddle AgedMitogen-Activated Protein Kinase 1Mitogen-Activated Protein Kinase 3N-AcetylglucosaminyltransferasesPhosphorylationProtein Processing, Post-TranslationalRNA InterferenceRNA, Small InterferingSerineStomach NeoplasmsThreonineUp-RegulationXenograft Model Antitumor AssaysConceptsO-GlcNAcylationERK 1/2GlcNAcylation levelsCell cycleInhibition of OGTCell proliferationVivo xenograft assaysGastric cancer cell proliferationGC cell proliferationERK 1/2 pathwayERK-1/2 signalingThreonine residuesGastric cancer cell linesGlcNAc transferaseO-GlcNAcCancer cell proliferationTarget proteinsOGT levelsGastric epithelial cellsOnly enzymeXenograft assayPotential novel therapeutic targetPhosphorylation levelsCDK-2Cancer cell lines
2013
Mitochondrial Dynamics Controlled by Mitofusins Regulate Agrp Neuronal Activity and Diet-Induced Obesity
Dietrich MO, Liu ZW, Horvath TL. Mitochondrial Dynamics Controlled by Mitofusins Regulate Agrp Neuronal Activity and Diet-Induced Obesity. Cell 2013, 155: 188-199. PMID: 24074868, PMCID: PMC4142434, DOI: 10.1016/j.cell.2013.09.004.Peer-Reviewed Original ResearchConceptsMitochondrial dynamicsEnergy metabolismCell-type specificCellular energy metabolismWhole-body energy metabolismKey organellesMitofusin 1Mitofusin 2High-fat dietMitochondria sizeAgRP neuronsMfn1Anorexigenic pro-opiomelanocortin (POMC) neuronsAgRP neuronal activityKnockout miceMetabolismPro-opiomelanocortin (POMC) neuronsFusion mechanismDiet-Induced ObesityMitofusinsOverfed stateImportant roleCellsDynamic changesOrganelles
2012
AgRP neurons regulate development of dopamine neuronal plasticity and nonfood-associated behaviors
Dietrich MO, Bober J, Ferreira JG, Tellez LA, Mineur YS, Souza DO, Gao XB, Picciotto MR, Araújo I, Liu ZW, Horvath TL. AgRP neurons regulate development of dopamine neuronal plasticity and nonfood-associated behaviors. Nature Neuroscience 2012, 15: 1108-1110. PMID: 22729177, PMCID: PMC3411867, DOI: 10.1038/nn.3147.Peer-Reviewed Original Research
2009
SirT1 knockdown in liver decreases basal hepatic glucose production and increases hepatic insulin responsiveness in diabetic rats
Erion DM, Yonemitsu S, Nie Y, Nagai Y, Gillum MP, Hsiao JJ, Iwasaki T, Stark R, Weismann D, Yu XX, Murray SF, Bhanot S, Monia BP, Horvath TL, Gao Q, Samuel VT, Shulman GI. SirT1 knockdown in liver decreases basal hepatic glucose production and increases hepatic insulin responsiveness in diabetic rats. Proceedings Of The National Academy Of Sciences Of The United States Of America 2009, 106: 11288-11293. PMID: 19549853, PMCID: PMC2700142, DOI: 10.1073/pnas.0812931106.Peer-Reviewed Original Research