2024
Defying “IL-11ness” by inhibiting inflammation: Strategy for health and longevity
Kim H, Dixit V. Defying “IL-11ness” by inhibiting inflammation: Strategy for health and longevity. Cell Metabolism 2024, 36: 1911-1913. PMID: 39232279, DOI: 10.1016/j.cmet.2024.08.003.Peer-Reviewed Original ResearchAdiposity, immunity, and inflammation: interrelationships in health and disease: a report from 24th Annual Harvard Nutrition Obesity Symposium, June 2023
Burak M, Stanley T, Lawson E, Campbell S, Lynch L, Hasty A, Domingos A, Dixit V, Hotamışlıgil G, Sheedy F, Dixon A, Brinkley T, Hill J, Donath M, Grinspoon S. Adiposity, immunity, and inflammation: interrelationships in health and disease: a report from 24th Annual Harvard Nutrition Obesity Symposium, June 2023. American Journal Of Clinical Nutrition 2024, 120: 257-268. PMID: 38705359, PMCID: PMC11347817, DOI: 10.1016/j.ajcnut.2024.04.029.Peer-Reviewed Original ResearchLow-grade systemic inflammationChronic low-grade inflammationLocal immune environmentAdipose tissueLow-grade inflammationEffect of obesityObesity Research CenterPro-inflammatory pathwaysOutcome of metabolic diseasesImmune environmentSystemic inflammationHealth and DiseaseTreatment therapiesInflammationMultifaceted effectsDisease severityMetabolic diseasesImmunometabolic diseasesImmunityAdiposeDiseaseReduced disease severityObesityTissueDisrupting cellular homeostasis
2023
IMMUNOMETABOLIC CHECKPOINTS OF INFLAMMAGING
Dixit V. IMMUNOMETABOLIC CHECKPOINTS OF INFLAMMAGING. Innovation In Aging 2023, 7: 140-140. PMCID: PMC10735998, DOI: 10.1093/geroni/igad104.0458.Peer-Reviewed Original ResearchCaloric restrictionAnti-inflammatory effectsAnti-inflammatory responseAge-related functional declineNegative energy balanceTissue-resident macrophagesAge-associated degenerative diseasesThymic involutionMaintenance of homeostasisMetabolic dysfunctionFunctional declineAdipose tissueInflammationResident macrophagesStudy participantsDegenerative diseasesMacrophagesKey hallmarksRNA sequence analysisMitochondrial metabolismHuman physiologyUnique regulatorCellular quiescenceMetabolismTranscriptional programsInnate immune cell-intrinsic ketogenesis is dispensable for organismal metabolism and age-related inflammation
Goldberg E, Letian A, Dlugos T, Leveau C, Dixit V. Innate immune cell-intrinsic ketogenesis is dispensable for organismal metabolism and age-related inflammation. Journal Of Biological Chemistry 2023, 299: 103005. PMID: 36775129, PMCID: PMC10025153, DOI: 10.1016/j.jbc.2023.103005.Peer-Reviewed Original ResearchConceptsAge-related inflammationKetone bodiesOrganismal metabolismMyeloid cellsChronic low-grade inflammationKetogenic diet feedingLow-grade inflammationHigh-fat dietAbundant ketone bodyGlucose toleranceNLRP3 inflammasomeDiet feedingGlucose homeostasisMouse modelBody weightInflammationMetabolic checkpointOnly organConditional ablationTerminal enzymeΒ-hydroxybutyrateFunctional targetingMethylglutaryl-CoA lyaseKetogenesisModest effect
2022
The matricellular protein SPARC induces inflammatory interferon-response in macrophages during aging
Ryu S, Sidorov S, Ravussin E, Artyomov M, Iwasaki A, Wang A, Dixit VD. The matricellular protein SPARC induces inflammatory interferon-response in macrophages during aging. Immunity 2022, 55: 1609-1626.e7. PMID: 35963236, PMCID: PMC9474643, DOI: 10.1016/j.immuni.2022.07.007.Peer-Reviewed Original ResearchConceptsToll-like receptor 4ISG inductionMatricellular proteinPro-inflammatory phenotypeAnti-inflammatory macrophagesInterferon-stimulated gene expressionAdipocyte-specific deletionInhibition of glycolysisImmunometabolic adaptationsMyD88 pathwayReceptor 4Chronic diseasesFunctional declineCaloric restrictionInterferon responseHealth spanMacrophagesInflammationMitochondrial respirationSPARCInductionGene expressionAdipokinesObesityIFNCaloric restriction in humans reveals immunometabolic regulators of health span
Spadaro O, Youm Y, Shchukina I, Ryu S, Sidorov S, Ravussin A, Nguyen K, Aladyeva E, Predeus AN, Smith SR, Ravussin E, Galban C, Artyomov MN, Dixit VD. Caloric restriction in humans reveals immunometabolic regulators of health span. Science 2022, 375: 671-677. PMID: 35143297, PMCID: PMC10061495, DOI: 10.1126/science.abg7292.Peer-Reviewed Original ResearchMeSH Keywords1-Alkyl-2-acetylglycerophosphocholine EsteraseAdipose TissueAdultAgingAnimalsCaloric RestrictionDown-RegulationEnergy MetabolismFemaleHumansImmune SystemInflammasomesInflammationLongevityLymphopoiesisMacrophagesMaleMiceMiddle AgedMitochondriaNLR Family, Pyrin Domain-Containing 3 ProteinThermogenesisThymus GlandTranscriptomeConceptsCaloric restrictionAge-related inflammationHealth spanAnti-inflammatory responseNLRP3 inflammasome activationEctopic lipidsMetabolic healthInflammasome activationHealthy humansAdipose tissueImmunometabolic effectsFactor acetyl hydrolaseImmune defenseInflammationAcetyl hydrolaseMitochondrial bioenergeticsHumansLife spanLipoatrophyPLA2G7ThymopoiesisMice
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 response
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
2017
Energy Sparing Orexigenic Inflammation of Obesity
Lee A, Dixit VD. Energy Sparing Orexigenic Inflammation of Obesity. Cell Metabolism 2017, 26: 10-12. PMID: 28683278, DOI: 10.1016/j.cmet.2017.06.013.Peer-Reviewed Original ResearchNLRP3 Inflammasome controls adipose tissue macrophage activation during aging
Camell C, Sander J, Spadaro O, Lee A, Nguyen K, Wing A, Goldberg E, Youm Y, Rodeheffer M, Schultze J, Dixit V. NLRP3 Inflammasome controls adipose tissue macrophage activation during aging. The Journal Of Immunology 2017, 198: 154.3-154.3. DOI: 10.4049/jimmunol.198.supp.154.3.Peer-Reviewed Original ResearchAge-related inflammationMacrophage activationAT macrophagesImmune-metabolic interactionsCaspase-1 activationAdipose tissue homeostasisAge-related defectsAT inflammationOld WTVisceral adiposityImmune defectsChronic inflammationInsulin resistanceAged miceImmune populationsImmune cellsInflammatory responseMetabolic dysfunctionAge-induced changesMacrophage subsetsMultiple organsInflammationNLRP3Tissue macrophagesDegenerative disorders
2015
Ketone body beta-hydroxy butyrate deactivates NLRP3 inflammasome in myeloid cells (CAM1P.153)
Goldberg E, Youm Y, Nguyen K, Alnemri E, Dixit V. Ketone body beta-hydroxy butyrate deactivates NLRP3 inflammasome in myeloid cells (CAM1P.153). The Journal Of Immunology 2015, 194: 48.10-48.10. DOI: 10.4049/jimmunol.194.supp.48.10.Peer-Reviewed Original ResearchBeta-hydroxy butyrateInflammasome activationMyeloid cellsNLRP3-dependent inflammasome activationAnti-inflammatory interventionsNLRP3-dependent ILMyeloid lineage cellsShort-chain fatty acidsDependent inflammasome activationKetone body productionFatty acid oxidationBone lossChronic inflammationAged miceAge-related diseasesNLRP3 inflammasomeSterile inflammationChronic diseasesFunctional declineMetabolic diseasesCognitive declineCalorie restrictionChain fatty acidsInflammationLineage cells