2020
IL-7 receptor alpha defines heterogeneity and signature of human effector memory CD8+ T cells in high dimensional analysis
Shin MS, Kim D, Yim K, Park HJ, You S, Dong X, Koumpouras F, Shaw AC, Fan R, Krishnaswamy S, Kang I. IL-7 receptor alpha defines heterogeneity and signature of human effector memory CD8+ T cells in high dimensional analysis. Cellular Immunology 2020, 355: 104155. PMID: 32619811, PMCID: PMC7415611, DOI: 10.1016/j.cellimm.2020.104155.Peer-Reviewed Original ResearchConceptsSingle-cell RNA-seqHuman effector memory CD8Effector memory CD8T cellsIL-7RαMemory CD8Gene regulationTranscription factorsRNA-seqPossible biological significanceDownstream eventsEM CD8Expression patternsExpressional relationshipDifferential expressionCytokine receptorsComprehensive landscapeHigh-dimensional cytometryBiological significanceIL-7 receptor alphaKey moleculesIL-7 receptor alpha chainReceptor alpha chainBiological implicationsHeterogeneous cell subsets
2019
Transcriptomic analysis of human IL‐7 receptor alpha low and high effector memory CD8+ T cells reveals an age‐associated signature linked to influenza vaccine response in older adults
Park H, Shin MS, Kim M, Bilsborrow JB, Mohanty S, Montgomery RR, Shaw AC, You S, Kang I. Transcriptomic analysis of human IL‐7 receptor alpha low and high effector memory CD8+ T cells reveals an age‐associated signature linked to influenza vaccine response in older adults. Aging Cell 2019, 18: e12960. PMID: 31044512, PMCID: PMC6612637, DOI: 10.1111/acel.12960.Peer-Reviewed Original ResearchConceptsPeripheral blood cellsPeripheral blood mononuclear cellsEffector memory CD8Influenza vaccine responsesEM CD8T cellsIL-7RαMemory CD8Vaccine responsesBlood cellsOlder adultsIL-7 receptor alphaSignature genesBlood mononuclear cellsHuman peripheral whole bloodAge-associated expansionPeripheral whole bloodGene expression profilesAge-associated changesMeta-analysis studyGlobal transcriptomic profilesMononuclear cellsCD8Receptor alphaExpression profiles
2015
DNA Methylation Regulates the Differential Expression of CX3CR1 on Human IL-7Rαlow and IL-7Rαhigh Effector Memory CD8+ T Cells with Distinct Migratory Capacities to the Fractalkine
Shin MS, You S, Kang Y, Lee N, Yoo SA, Park K, Kang KS, Kim SH, Mohanty S, Shaw AC, Montgomery RR, Hwang D, Kang I. DNA Methylation Regulates the Differential Expression of CX3CR1 on Human IL-7Rαlow and IL-7Rαhigh Effector Memory CD8+ T Cells with Distinct Migratory Capacities to the Fractalkine. The Journal Of Immunology 2015, 195: 2861-2869. PMID: 26276874, PMCID: PMC4561204, DOI: 10.4049/jimmunol.1500877.Peer-Reviewed Original ResearchConceptsDNA methylationDifferential expressionGene expressionCellular traitsEpigenetic mechanismsGene promoterGenome-wide DNA methylationDistinct traitsDNA methylation statusIndividual gene expressionMigratory capacityAutocrine amplification loopImportant biological outcomesPotential biological implicationsMammalian cellsMethylationMethylation statusAmplification loopBiological outcomesTraitsBiological implicationsPromoterEffector memoryExpressionT cells
2011
Age-associated alteration in naive and memory Th17 cell response in humans
Lee JS, Lee WW, Kim SH, Kang Y, Lee N, Shin MS, Kang SW, Kang I. Age-associated alteration in naive and memory Th17 cell response in humans. Clinical Immunology 2011, 140: 84-91. PMID: 21489886, PMCID: PMC3115516, DOI: 10.1016/j.clim.2011.03.018.Peer-Reviewed Original ResearchConceptsIL-17 productionT cellsCell responsesIL-17-producing cellsMemory cell subsetsHealthy elderly peopleHealthy young peopleAge-associated alterationsIL-17Results of ELISAEffector cellsCell subsetsDecreased frequencyHost defenseFlow cytometrySimilar findingsElderly peopleSimilar frequencyIFNCellsHumansFindingsELISAYoung peopleCytometry
2009
Regulating human Th17 cells via differential expression of IL-1 receptor
Lee WW, Kang SW, Choi J, Lee SH, Shah K, Eynon EE, Flavell RA, Kang I. Regulating human Th17 cells via differential expression of IL-1 receptor. Blood 2009, 115: 530-540. PMID: 19965648, PMCID: PMC2810985, DOI: 10.1182/blood-2009-08-236521.Peer-Reviewed Original ResearchConceptsT cellsIL-1RICell differentiationDifferential expressionIL-17IL-15IL-1betaIL-7T cell receptor triggeringT helper 17 (Th17) cellsIL-1 receptor expressionIL-1RI expressionIL-17 productionHelper 17 cellsT cell populationsCytokine IL-7IL-1R antagonistIL-1 receptorUmbilical cord bloodHuman peripheral bloodGene expressionReceptor triggeringPeripheral bloodCord bloodReceptor expression
2007
Dual Roles of IL-15 in Maintaining IL-7RαlowCCR7− Memory CD8+ T Cells in Humans via Recovering the Phosphatidylinositol 3-Kinase/AKT Pathway
Kim HR, Hwang KA, Kang I. Dual Roles of IL-15 in Maintaining IL-7RαlowCCR7− Memory CD8+ T Cells in Humans via Recovering the Phosphatidylinositol 3-Kinase/AKT Pathway. The Journal Of Immunology 2007, 179: 6734-6740. PMID: 17982063, DOI: 10.4049/jimmunol.179.10.6734.Peer-Reviewed Original ResearchMeSH KeywordsCD8-Positive T-LymphocytesCell ProliferationCell SurvivalEnzyme ActivationGene Expression RegulationHumansImmunologic MemoryInfectionsInterleukin-15Interleukin-2 Receptor beta SubunitInterleukin-7NeoplasmsPerforinPhosphatidylinositol 3-KinasesProto-Oncogene Proteins c-aktReceptors, Antigen, T-CellReceptors, CCR7Receptors, Interleukin-17Signal TransductionConceptsIL-15T cellsPI3K/Akt pathwayAkt pathwayIL-7Memory T cell survivalProliferation of ILIL-15 signalingHuman peripheral bloodT cell survivalEffector cytokinesMemory CD8Peripheral bloodEffector functionsIL-7REnhanced gene expressionProliferative functionIndependent mechanismsILTCR triggeringCell survivalSuch cellsSurvivalTranscriptional factorsDual roleDown-Regulation of IL-7Rα Expression in Human T Cells via DNA Methylation
Kim HR, Hwang KA, Kim KC, Kang I. Down-Regulation of IL-7Rα Expression in Human T Cells via DNA Methylation. The Journal Of Immunology 2007, 178: 5473-5479. PMID: 17442928, DOI: 10.4049/jimmunol.178.9.5473.Peer-Reviewed Original ResearchConceptsJurkat T cellsDNA methylationGene expressionGene promoterIL-7Ralpha expressionT cellsPromoter activityImportant gene regulatory mechanismGene regulatory mechanismsGene promoter constructsHuman CD8Gene promoter activityIL-7Cell survival responseT cell developmentT cell subsetsIL-7Rα expressionRegulatory mechanismsPromoter constructsCell developmentMethylationLuciferase reporterHuman T cellsSurvival responseDown regulation
2004
Age-Associated Change in the Frequency of Memory CD4+ T Cells Impairs Long Term CD4+ T Cell Responses to Influenza Vaccine
Kang I, Hong MS, Nolasco H, Park SH, Dan JM, Choi JY, Craft J. Age-Associated Change in the Frequency of Memory CD4+ T Cells Impairs Long Term CD4+ T Cell Responses to Influenza Vaccine. The Journal Of Immunology 2004, 173: 673-681. PMID: 15210831, DOI: 10.4049/jimmunol.173.1.673.Peer-Reviewed Original ResearchConceptsT cell responsesIL-7 levelsMemory CD4Long-term CD4T cellsCell responsesInfluenza vaccineIFN-gammaInfluenza virus-specific CD4Serum IL-7 levelsEM cellsLevels of CD4Virus-specific CD4Central memory CD4Effector memory CD4Cellular immune responsesFrequency of influenzaImportant clinical questionsAge-Associated ChangesEM CD4Influenza vaccinationTNF-alphaVaccination strategiesIL-7Immune response