2024
Skeletal muscle TET3 promotes insulin resistance through destabilisation of PGC-1α
Liu B, Xie D, Huang X, Jin S, Dai Y, Sun X, Li D, Bennett A, Diano S, Huang Y. Skeletal muscle TET3 promotes insulin resistance through destabilisation of PGC-1α. Diabetologia 2024, 67: 724-737. PMID: 38216792, PMCID: PMC10904493, DOI: 10.1007/s00125-023-06073-5.Peer-Reviewed Original ResearchConceptsTen-eleven translocationMuscle insulin sensitivityRNA-seqPGC-1aRegulation of muscle insulin sensitivityType 2 diabetesAnalysis of RNA-seqResponse to environmental cuesGenome-wide expression profilingWild-typeHFD-fedHFD-induced insulin resistanceHigh-fat diet (HFD)-inducedExpression levelsMaintenance of glucoseSkeletal muscle insulin sensitivityAccession numbersSkeletal muscleEnhanced glucose toleranceFamily dioxygenasesMitochondrial respirationSkeletal muscle of humansEnvironmental cuesMitochondrial functionBiological processes
2022
Let-7 underlies metformin-induced inhibition of hepatic glucose production
Xie D, Chen F, Zhang Y, Shi B, Song J, Chaudhari K, Yang SH, Zhang GJ, Sun X, Taylor HS, Li D, Huang Y. Let-7 underlies metformin-induced inhibition of hepatic glucose production. Proceedings Of The National Academy Of Sciences Of The United States Of America 2022, 119: e2122217119. PMID: 35344434, PMCID: PMC9169108, DOI: 10.1073/pnas.2122217119.Peer-Reviewed Original ResearchConceptsHepatic glucose productionAntidiabetic effectsMouse modelGlucose productionPotent antidiabetic actionsHepatocyte nuclear factor 4 alphaNuclear factor 4 alphaFunction mouse modelsHuman primary hepatocytesMetformin-induced inhibitionAntidiabetic actionTherapeutic effectGlucose homeostasisSuprapharmacological concentrationsRelevant dosesHepatic deliveryMetforminFetal isoformsPotential therapeuticsPrimary hepatocytesMost studiesLet-7Regulatory pathwaysHyperglycemiaDiabetes
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
2014
The H19/let-7 double-negative feedback loop contributes to glucose metabolism in muscle cells
Gao Y, Wu F, Zhou J, Yan L, Jurczak MJ, Lee HY, Yang L, Mueller M, Zhou XB, Dandolo L, Szendroedi J, Roden M, Flannery C, Taylor H, Carmichael GG, Shulman GI, Huang Y. The H19/let-7 double-negative feedback loop contributes to glucose metabolism in muscle cells. Nucleic Acids Research 2014, 42: 13799-13811. PMID: 25399420, PMCID: PMC4267628, DOI: 10.1093/nar/gku1160.Peer-Reviewed Original ResearchConceptsDouble-negative feedback loopLet-7PI3K/Akt-dependent phosphorylationLet-7 targetsHuman genetic disordersAkt-dependent phosphorylationMuscle cellsInsulin-resistant rodentsSponge lncRNAsMolecular spongeH19 lncRNAFeedback loopGrowth controlDepletion resultsH19Impaired insulinLncRNAsTarget miRNAGlucose uptakeGenetic disordersBiogenesisCellsKSRPPhosphorylationMicroRNAs