2021
mTORC1 Signaling Regulates Proinflammatory Macrophage Function and Metabolism.
Collins S, Oh M, Sun I, Chan-Li Y, Zhao L, Powell J, Horton M. mTORC1 Signaling Regulates Proinflammatory Macrophage Function and Metabolism. The Journal Of Immunology 2021, 207: 913-922. PMID: 34290107, DOI: 10.4049/jimmunol.2100230.Peer-Reviewed Original ResearchConceptsKey regulatorImmune cell functionEnhanced histone acetylationCell functionRapid energy sourceClass III histoneDifferentiation of macrophagesHistone acetylationMacrophage functionMTORC1 signalingCellular metabolismOxidative phosphorylationCell metabolismMTOR signalingGlycolytic metabolismAntimicrobial compoundsGenetic deletionM2 macrophagesMouse macrophagesProper wound healingMetabolic programmingSignificant defectsM1 functionImmune cell metabolismSignaling
2018
mTOR Complex 1 Signaling Regulates the Generation and Function of Central and Effector Foxp3+ Regulatory T Cells
Sun I, Oh M, Zhao L, Patel C, Arwood M, Xu W, Tam A, Blosser R, Wen J, Powell J. mTOR Complex 1 Signaling Regulates the Generation and Function of Central and Effector Foxp3+ Regulatory T Cells. The Journal Of Immunology 2018, 201: 481-492. PMID: 29884702, PMCID: PMC6089237, DOI: 10.4049/jimmunol.1701477.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCD8-Positive T-LymphocytesCell DifferentiationFemaleForkhead Transcription FactorsImmunologic MemoryInducible T-Cell Co-Stimulator ProteinLymphocyte ActivationMaleMechanistic Target of Rapamycin Complex 1MiceProgrammed Cell Death 1 ReceptorRegulatory-Associated Protein of mTORSignal TransductionT-Lymphocytes, RegulatoryConceptsT cell activationT cellsCentral TregsGenetic deletionCell activationRegulatory T cell differentiationGeneration of TregsRegulatory T cellsEffector T cellsMemory-like phenotypeT cell differentiationInhibition of mTORSpare respiratory capacityEffector TregsRole of mTORPD-1Treg functionImmune microenvironmentMemory TregsTregsPharmacologic inhibitionDecreased expressionMammalian targetPharmacologic inhibitorsMTOR activity
2017
mTORC2 Signaling Selectively Regulates the Generation and Function of Tissue-Resident Peritoneal Macrophages
Oh M, Collins S, Sun I, Tam A, Patel C, Arwood M, Chan-Li Y, Powell J, Horton M. mTORC2 Signaling Selectively Regulates the Generation and Function of Tissue-Resident Peritoneal Macrophages. Cell Reports 2017, 20: 2439-2454. PMID: 28877476, PMCID: PMC5659290, DOI: 10.1016/j.celrep.2017.08.046.Peer-Reviewed Original ResearchConceptsTissue-resident macrophagesMetabolic reprogrammingTissue-specific cuesUnique differentiation programCritical roleDifferentiation programmingPeritoneal resident macrophagesDifferentiation programMTORC2 activationGATA6 expressionPeritoneal macrophagesResident peritoneal macrophagesTissue microenvironmentHomeostatic functionsReprogrammingSelective roleMacrophage generationMacrophage proliferationDifferentiationDependent fashionResident macrophagesMacrophagesM2 macrophagesGATA6MicroenvironmentExpression of IL-22 in the Skin Causes Th2-Biased Immunity, Epidermal Barrier Dysfunction, and Pruritus via Stimulating Epithelial Th2 Cytokines and the GRP Pathway
Lou H, Lu J, Choi EB, Oh MH, Jeong M, Barmettler S, Zhu Z, Zheng T. Expression of IL-22 in the Skin Causes Th2-Biased Immunity, Epidermal Barrier Dysfunction, and Pruritus via Stimulating Epithelial Th2 Cytokines and the GRP Pathway. The Journal Of Immunology 2017, 198: 2543-2555. PMID: 28228560, PMCID: PMC5360537, DOI: 10.4049/jimmunol.1600126.Peer-Reviewed Original ResearchConceptsGastrin-releasing peptideType 2 cytokinesAtopic dermatitisIL-22GRP receptorAD skinDevelopment of ADPathogenesis of ADExpression of GRPHouse dust mite allergenDermal immune cellsIntensity of pruritusAD-like phenotypeThymic stromal lymphopoietinCytokine IL-22Human atopic dermatitisSystemic immune responsesEpidermal barrier dysfunctionImportant pathogenic roleTh2-biased immunitySkin of patientsDust mite allergenSkin of miceChronic pruritic dermatitisAllergen exposure
2016
Deletion of mTORC1 Activity in CD4+ T Cells Is Associated with Lung Fibrosis and Increased γδ T Cells
Vigeland C, Collins S, Chan-Li Y, Hughes A, Oh M, Powell J, Horton M. Deletion of mTORC1 Activity in CD4+ T Cells Is Associated with Lung Fibrosis and Increased γδ T Cells. PLOS ONE 2016, 11: e0163288. PMID: 27649073, PMCID: PMC5029914, DOI: 10.1371/journal.pone.0163288.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBleomycinCD4-Positive T-LymphocytesDisease Models, AnimalInterleukin-17MacrophagesMechanistic Target of Rapamycin Complex 1MiceMice, KnockoutMultiprotein ComplexesNeutrophilsPulmonary FibrosisReceptors, Antigen, T-Cell, gamma-deltaSignal TransductionT-Lymphocyte SubsetsTOR Serine-Threonine KinasesConceptsΓδ T cellsTh17 cellsDevelopment of fibrosisT cellsPulmonary fibrosisIL-17AChronic inflammationCytokines IL-17ADevelopment of bleomycinNovel therapeutic targetLung dysfunctionLung neutrophilsProgressive fibrosisLung fibrosisM2 macrophagesTherapeutic targetFibrosisIncurable diseaseInflammationMortalityBleomycinCellsILCritical rolePrior studiesAsymmetric inheritance of mTORC1 kinase activity during division dictates CD8+ T cell differentiation
Pollizzi K, Sun I, Patel C, Lo Y, Oh M, Waickman A, Tam A, Blosser R, Wen J, Delgoffe G, Powell J. Asymmetric inheritance of mTORC1 kinase activity during division dictates CD8+ T cell differentiation. Nature Immunology 2016, 17: 704-711. PMID: 27064374, PMCID: PMC4873361, DOI: 10.1038/ni.3438.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCD8-Positive T-LymphocytesCell DifferentiationCell DivisionCell SurvivalCells, CulturedFemaleGlycolysisImmunologic MemoryLipid MetabolismLysosomesMaleMechanistic Target of Rapamycin Complex 1MiceMice, Inbred C57BLMice, TransgenicMultiprotein ComplexesPrecursor Cells, T-LymphoidProtein TransportReceptors, Antigen, T-CellSignal TransductionTOR Serine-Threonine Kinases
2014
Regulation of Nasal Airway Homeostasis and Inflammation in Mice by SHP-1 and Th2/Th1 Signaling Pathways
Cho SH, Oh SY, Lane AP, Lee J, Oh MH, Lee S, Zheng T, Zhu Z. Regulation of Nasal Airway Homeostasis and Inflammation in Mice by SHP-1 and Th2/Th1 Signaling Pathways. PLOS ONE 2014, 9: e103685. PMID: 25090641, PMCID: PMC4121172, DOI: 10.1371/journal.pone.0103685.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsChemokinesEosinophiliaGelatinHomeostasisInflammationInterferon-gammaMatrix Metalloproteinase 2Matrix Metalloproteinase 9MetaplasiaMice, Inbred C57BLMice, Mutant StrainsMucusNasal Lavage FluidNasal MucosaProtein Tyrosine Phosphatase, Non-Receptor Type 6RhinitisSignal TransductionTh1 CellsTh2 CellsConceptsMatrix metalloproteinasesNasal inflammationAllergic rhinitisTh1 cytokinesInflammatory cellsTh2 cytokinesNasal airwayChronic inflammatory diseaseExpression of cytokinesTh2-skewed inflammationIFN-γ geneMucus metaplasiaTh1 paradigmAirway homeostasisInflammatory mediatorsTh2 lymphocytesImmune homeostasisInflammatory diseasesViable motheaten miceInflammationTransepithelial migrationCytokinesMev miceClearance mechanismsTh2
2013
SHP-1 Regulation of Mast Cell Function in Allergic Inflammation and Anaphylaxis
Zhou L, Oh SY, Zhou Y, Yuan B, Wu F, Oh MH, Wang Y, Takemoto C, Van Rooijen N, Zheng T, Zhu Z. SHP-1 Regulation of Mast Cell Function in Allergic Inflammation and Anaphylaxis. PLOS ONE 2013, 8: e55763. PMID: 23390550, PMCID: PMC3563592, DOI: 10.1371/journal.pone.0055763.Peer-Reviewed Original ResearchMeSH KeywordsAdoptive TransferAllergensAnaphylaxisAnimalsBasophilsCell DifferentiationCells, CulturedCytokinesGene ExpressionInflammationInjections, IntravenousLipopolysaccharidesLungMast CellsMiceMice, KnockoutOvalbuminProtein Tyrosine Phosphatase, Non-Receptor Type 6Respiratory HypersensitivitySignal TransductionTh2 CellsConceptsTh2 immune responseAllergic inflammationAirway inflammationMast cell functionImmune responseMast cellsDeficient bone marrow cellsMast cell-deficient miceCell-deficient miceCell functionSevere allergic reactionsWild-type miceSHP-1Bone marrow cellsAirway stimulationAdoptive transferSystemic anaphylaxisAnaphylactic responseClinical symptomsImmunological homeostasisDeficient miceAllergic reactionsType miceAnaphylaxisInflammation
2007
TH2 and TH1 lung inflammation induced by airway allergen sensitization with low and high doses of double-stranded RNA
Jeon SG, Oh SY, Park HK, Kim YS, Shim EJ, Lee HS, Oh MH, Bang B, Chun EY, Kim SH, Gho YS, Zhu Z, Kim YY, Kim YK. TH2 and TH1 lung inflammation induced by airway allergen sensitization with low and high doses of double-stranded RNA. Journal Of Allergy And Clinical Immunology 2007, 120: 803-812. PMID: 17610940, DOI: 10.1016/j.jaci.2007.05.030.Peer-Reviewed Original ResearchConceptsRespiratory viral infectionsAllergen sensitizationLung inflammationViral infectionAirway sensitizationIL-4Immune responseMouse modelHigh dosesIL-13-deficient miceIFN-gamma-deficient miceT-bet-deficient miceToll-like receptor 3Airway allergen exposureAllergic lung inflammationAdaptive immune responsesToll-like receptorsIL-4 expressionSTAT6-deficient miceNovel mouse modelIFN-gamma expressionAllergen exposurePathophysiologic mechanismsIL-13Deficient miceAirway Exposure Levels of Lipopolysaccharide Determine Type 1 versus Type 2 Experimental Asthma
Kim YK, Oh SY, Jeon SG, Park HW, Lee SY, Chun EY, Bang B, Lee HS, Oh MH, Kim YS, Kim JH, Gho YS, Cho SH, Min KU, Kim YY, Zhu Z. Airway Exposure Levels of Lipopolysaccharide Determine Type 1 versus Type 2 Experimental Asthma. The Journal Of Immunology 2007, 178: 5375-5382. PMID: 17404323, DOI: 10.4049/jimmunol.178.8.5375.Peer-Reviewed Original ResearchMeSH KeywordsAdultAgedAnimalsAsthmaBronchial HyperreactivityFemaleHumansInterferon-gammaInterleukin-12LipopolysaccharidesMaleMiceMice, Inbred BALB CMice, Inbred C57BLMiddle AgedOvalbuminReceptors, Tumor Necrosis FactorRNA, MessengerSignal TransductionSTAT4 Transcription FactorTh1 CellsTh2 CellsTransforming Growth Factor beta1Tumor Necrosis Factor-alphaConceptsHigh-dose LPSLow-dose LPSAsthma phenotypesAdaptive immune responsesImmune responseAirway hyperresponsivenessAllergen sensitizationTNF-alpha receptor-deficient miceType 1IFN-gamma-deficient miceSevere asthma patientsReceptor-deficient miceAllergen-specific IgEExposure levelsIL-12 expressionTNF-alpha expressionIFN-gamma expressionLow LPS levelsNoneosinophilic inflammationAirway inflammationAllergic asthmaNeutrophilic inflammationSevere asthmaAirway exposureAsthma patients