2021
IL-33 causes thermogenic failure in aging by expanding dysfunctional adipose ILC2
Goldberg EL, Shchukina I, Youm YH, Ryu S, Tsusaka T, Young KC, Camell CD, Dlugos T, Artyomov MN, Dixit VD. IL-33 causes thermogenic failure in aging by expanding dysfunctional adipose ILC2. Cell Metabolism 2021, 33: 2277-2287.e5. PMID: 34473956, PMCID: PMC9067336, DOI: 10.1016/j.cmet.2021.08.004.Peer-Reviewed Original ResearchConceptsOld miceType 2 innate lymphoid cellsInnate lymphoid cellsTissue-resident cellsCore body temperatureAdoptive transferIL-33ILC2 numbersTissue inflammationAged miceImmunometabolic responsesMetabolic impairmentLymphoid cellsDietary restrictionImmune systemILC2Functional defectsMiceBody temperatureFailureCellsInflammationTranscriptomic analysisInfectionStress responseAdiponectin preserves metabolic fitness during aging
Li N, Zhao S, Zhang Z, Zhu Y, Gliniak CM, Vishvanath L, An YA, Wang MY, Deng Y, Zhu Q, Shan B, Sherwood A, Onodera T, Oz OK, Gordillo R, Gupta RK, Liu M, Horvath TL, Dixit VD, Scherer PE. Adiponectin preserves metabolic fitness during aging. ELife 2021, 10: e65108. PMID: 33904399, PMCID: PMC8099426, DOI: 10.7554/elife.65108.Peer-Reviewed Original ResearchConceptsAdiponectin null miceSystemic insulin sensitivityInsulin sensitivityNull miceAge-related glucoseRole of adiponectinLipid metabolism disordersHigh-fat dietTransgenic mouse modelAdiponectin levelsTissue inflammationMetabolism disordersClinical studiesMouse modelAdiponectinMice displayMetabolic fitnessOverexpression modelPositive associationMiceMedian lifespanHealthspanDirect effectEssential regulatorAging process
2020
Ketogenesis activates metabolically protective γδ T cells in visceral adipose tissue
Goldberg EL, Shchukina I, Asher JL, Sidorov S, Artyomov MN, Dixit VD. Ketogenesis activates metabolically protective γδ T cells in visceral adipose tissue. Nature Metabolism 2020, 2: 50-61. PMID: 32694683, PMCID: PMC10150608, DOI: 10.1038/s42255-019-0160-6.Peer-Reviewed Original ResearchConceptsΓδ T cellsKetogenic dietT cellsAdipose tissue inflammationResident immune cellsVisceral adipose tissueHigher fat compositionReduced adipose tissue inflammationCause obesityMetabolic healthTissue inflammationImmune cellsImmunometabolic responsesProlonged exerciseGlucose homeostasisAdipose tissueInflammationKetone bodiesSingle-cell RNA sequencingLow carbohydrateEnergy homeostasisΒ-hydroxybutyrateFat compositionRNA sequencingCells
2015
A Role of the Inflammasome in the Low Storage Capacity of the Abdominal Subcutaneous Adipose Tissue in Obese Adolescents
Kursawe R, Dixit VD, Scherer PE, Santoro N, Narayan D, Gordillo R, Giannini C, Lopez X, Pierpont B, Nouws J, Shulman GI, Caprio S. A Role of the Inflammasome in the Low Storage Capacity of the Abdominal Subcutaneous Adipose Tissue in Obese Adolescents. Diabetes 2015, 65: 610-618. PMID: 26718495, PMCID: PMC4764142, DOI: 10.2337/db15-1478.Peer-Reviewed Original ResearchMeSH KeywordsAbdomenAcetyl-CoA CarboxylaseAdipogenesisAdiponectinAdolescentCarrier ProteinsCaspase 1ChildDown-RegulationFatty Acid Synthase, Type IFemaleGene Expression ProfilingGlucose Transporter Type 4HumansInflammasomesInsulin ResistanceInterleukin-1betaIntra-Abdominal FatLeptinLipogenesisLipoprotein LipaseMacrophagesMagnetic Resonance ImagingMaleNLR Family, Pyrin Domain-Containing 3 ProteinObesityPPAR gammaSirtuin 1Sterol Regulatory Element Binding Protein 1Subcutaneous FatToll-Like Receptor 4ConceptsVisceral adipose tissueObese adolescentsInsulin resistanceTissue inflammationNLRP3 inflammasomeAdipose tissueInnate immune cell sensorsAbdominal subcutaneous adipose tissueAbdominal adipose depotsAbdominal fat partitioningAdipogenesis/lipogenesisAdipose tissue inflammationProinflammatory cytokines interleukinInfiltration of macrophagesExpression of CASP1Subcutaneous adipose tissueInflammation markersSAT biopsiesIL-18Macrophage infiltrationVisceral fatCytokines interleukinSAT ratioInsulin sensitivityAdipose depotsAdipose tissue as an immunological organ
Grant RW, Dixit VD. Adipose tissue as an immunological organ. Obesity 2015, 23: 512-518. PMID: 25612251, PMCID: PMC4340740, DOI: 10.1002/oby.21003.Peer-Reviewed Original ResearchConceptsAdipose tissueImmunological organActive immunological organNumerous immune cellsObesity-associated comorbiditiesImmune cell subtypesAdaptive immune responsesType 2 diabetesCertain infectious diseasesWhole-body metabolismMetabolic syndromeObese subjectsChronic inflammationImmunological aspectsInsulin resistanceTissue inflammationObesity influencesImmune cellsImmune surveillanceT cellsImmune responseTissue leukocytosisPubMed searchB cellsHost defense