2020
Hepatic TET3 contributes to type-2 diabetes by inducing the HNF4α fetal isoform
Da Li, Cao T, Sun X, Jin S, Di Xie, Huang X, Yang X, Carmichael GG, Taylor HS, Diano S, Huang Y. Hepatic TET3 contributes to type-2 diabetes by inducing the HNF4α fetal isoform. Nature Communications 2020, 11: 342. PMID: 31953394, PMCID: PMC6969024, DOI: 10.1038/s41467-019-14185-z.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsDiabetes Mellitus, Type 2DioxygenasesDisease Models, AnimalDNA DemethylationDNA MethylationDNA-Binding ProteinsFastingGene Expression RegulationGlucagonGlucoseHepatocyte Nuclear Factor 3-betaHepatocyte Nuclear Factor 4LiverMaleMiceMice, Inbred C57BLMice, KnockoutPromoter Regions, GeneticProtein IsoformsTranscriptional ActivationTranscriptomeUp-RegulationConceptsHepatic glucose productionType 2 diabetesGlucose homeostasisAdult liverSystemic glucose homeostasisPotential therapeutic targetGenetic mouse modelsFetal versionKey gluconeogenic genesMouse modelTherapeutic targetHNF4α functionGlucose productionFetal isoformsLiverT2D.DiabetesPromoter demethylationGluconeogenic genesTET3 overexpressionHNF4αHomeostasisTET3Regulatory mechanismsIsoforms
2018
H19 lncRNA Promotes Skeletal Muscle Insulin Sensitivity in Part by Targeting AMPK
Geng T, Liu Y, Xu Y, Jiang Y, Zhang N, Wang Z, Carmichael GG, Taylor HS, Li D, Huang Y. H19 lncRNA Promotes Skeletal Muscle Insulin Sensitivity in Part by Targeting AMPK. Diabetes 2018, 67: db180370. PMID: 30201684, PMCID: PMC6198334, DOI: 10.2337/db18-0370.Peer-Reviewed Original ResearchConceptsMuscle insulin sensitivityEnergy sensor AMPKUnknown physiological functionImportant downstream effectorWhole-body energy metabolismCellular energy sensor AMPKEpigenetic mechanismsMuscle insulin resistanceDownstream effectorsAMPK activationMitochondrial biogenesisSystemic glucose homeostasisSkeletal muscle insulin sensitivityPhysiological functionsImportant regulatorAMPKInsulin-resistant human subjectsDUSP27Energy metabolismH19H19 expressionMuscle cellsSkeletal muscleGlucose uptakePivotal roleElevated hepatic expression of H19 long noncoding RNA contributes to diabetic hyperglycemia
Zhang N, Geng T, Wang Z, Zhang R, Cao T, Camporez JP, Cai SY, Liu Y, Dandolo L, Shulman GI, Carmichael GG, Taylor HS, Huang Y. Elevated hepatic expression of H19 long noncoding RNA contributes to diabetic hyperglycemia. JCI Insight 2018, 3: e120304. PMID: 29769440, PMCID: PMC6012507, DOI: 10.1172/jci.insight.120304.Peer-Reviewed Original ResearchConceptsHepatic glucose productionGenome-wide methylationExpression of Hnf4aGluconeogenic transcription factorsDiabetic hyperglycemiaH19 depletionTranscriptome analysisTranscription factorsExpression of H19Molecular mechanismsDiet-induced diabetic miceExcessive hepatic glucose productionType 2 diabetesInsulin-dependent suppressionElevated hepatic expressionH19 knockdownH19Promoter methylationMechanistic explanationMethylationDiabetic patientsRNADiabetic miceInsulin resistanceH19 overexpression