2024
IL-1 receptor 1 signaling shapes the development of viral antigen-specific CD4+ T cell responses following COVID-19 mRNA vaccination
Park H, Shin M, Shin J, Kim H, Kang B, Par-Young J, Unlu S, Afinogenova Y, Catanzaro J, Young J, Kim M, Lee S, Jeon S, You S, Racke M, Bucala R, Kang I. IL-1 receptor 1 signaling shapes the development of viral antigen-specific CD4+ T cell responses following COVID-19 mRNA vaccination. EBioMedicine 2024, 103: 105114. PMID: 38640835, PMCID: PMC11041015, DOI: 10.1016/j.ebiom.2024.105114.Peer-Reviewed Original ResearchConceptsCD4<sup>+</sup> T cellsCOVID-19 mRNA vaccinesAntigen-specific CD4<sup>+</sup> T cell responsesT cell responsesPrimary antibody deficiencyCD4<sup>+</sup> T cell responsesT cellsIL-1R1MRNA vaccinesIL-1IgG antibodiesAntigen-specific CD4<sup>+</sup> T cellsCD4+ T cell responsesLevels of IL-1R1Human CD4<sup>+</sup> T cellsIL-1 receptor 1Healthy individualsDose of COVID-19 mRNA vaccineAntigen-specific CD4IL-1R1 expressionT cell immunityRepetitive antigenic stimulationCytokines interleukin (IL)-1Immune response to virusesExpression of IL-1R1
2022
Alterations in high‐dimensional T‐cell profile and gene signature of immune aging in HIV‐infected older adults without viremia
Shin MS, Park H, Salahuddin S, Montgomery RR, Emu B, Shaw AC, Kang I. Alterations in high‐dimensional T‐cell profile and gene signature of immune aging in HIV‐infected older adults without viremia. Aging Cell 2022, 21: e13702. PMID: 36036630, PMCID: PMC9577958, DOI: 10.1111/acel.13702.Peer-Reviewed Original ResearchMeSH KeywordsAgedAgingCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesHIV InfectionsHumansLeukocytes, MononuclearPerforinReceptors, Interleukin-7ViremiaConceptsOlder human immunodeficiency virusPeripheral blood mononuclear cellsHuman immunodeficiency virusAntiretroviral therapyT cellsDetectable viremiaMemory CD8HIV infectionAge-associated immune alterationsYoung human immunodeficiency virusReplication-competent HIV-1Combination antiretroviral therapyEffector memory CD8T-cell countsSubset of CD4T cell profileBlood mononuclear cellsAgeing-associated genesEM CD8Immune alterationsMemory CD4Immune agingImmunodeficiency virusInflammatory moleculesMononuclear cells
2021
Co-inhibitor expression on tumor infiltrating and splenic lymphocytes after dual checkpoint inhibition in a microsatellite stable model of colorectal cancer
Slovak RJ, Park HJ, Kamp WM, Ludwig JM, Kang I, Kim HS. Co-inhibitor expression on tumor infiltrating and splenic lymphocytes after dual checkpoint inhibition in a microsatellite stable model of colorectal cancer. Scientific Reports 2021, 11: 6956. PMID: 33772035, PMCID: PMC7997991, DOI: 10.1038/s41598-021-85810-5.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, CDCD4-Positive T-LymphocytesCell Line, TumorCell ProliferationColorectal NeoplasmsCTLA-4 AntigenFemaleHepatitis A Virus Cellular Receptor 2Immune Checkpoint InhibitorsLymphocyte Activation Gene 3 ProteinLymphocytes, Tumor-InfiltratingMaleMiceMice, Inbred BALB CMicrosatellite RepeatsProgrammed Cell Death 1 ReceptorSpleenT-Lymphocytes, CytotoxicConceptsDual checkpoint inhibitionPD-1 inhibitionColorectal cancerCheckpoint inhibitionPD-1Checkpoint inhibitorsT cellsImmune responseRobust anti-tumor immune responseAnti-PD-1 groupAnti-PD-1 antibodyAnti-tumor immune responseMicrosatellite stable colorectal cancerDual PD-1Majority of patientsDeficient mismatch repairStable colorectal cancerCTLA-4 inhibitionTumor growth rateHigh microsatellite instabilityPotential escape mechanismsCombination immunotherapyImmunosuppressive checkpointsTumoral infiltrationDual therapy
2015
Piceatannol inhibits effector T cell functions by suppressing TcR signaling
Kim D, Lee Y, Park H, Lee J, Kim H, Hwang J, Choi J. Piceatannol inhibits effector T cell functions by suppressing TcR signaling. International Immunopharmacology 2015, 25: 285-292. PMID: 25676533, DOI: 10.1016/j.intimp.2015.01.030.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntigens, CDAntigens, Differentiation, T-LymphocyteCD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCell DifferentiationCytokinesFemaleInterleukin-2 Receptor alpha SubunitLectins, C-TypeMice, Inbred C57BLMitogen-Activated Protein KinasesPhosphorylationProtein Kinase InhibitorsReceptors, Antigen, T-CellSpleenStilbenesConceptsEffector T cell functionT cell functionT cellsPiceatannol treatmentT cell activation markers CD25Naïve CD4 T cellsRole of piceatannolCD4 T cellsActivation markers CD25Cell functionAdaptive immune responsesSplenic T cellsMetabolite of resveratrolMurine splenic T cellsInhibition of TCRActivated T cellsAnti-tumorigenesis activityT cell activationIL-17Th17 cellsCytokines IFNγC57BL/6 miceCytokine productionIL-2Immune response
2014
PPARγ Negatively Regulates T Cell Activation to Prevent Follicular Helper T Cells and Germinal Center Formation
Park HJ, Kim DH, Choi JY, Kim WJ, Kim JY, Senejani AG, Hwang SS, Kim LK, Tobiasova Z, Lee GR, Craft J, Bothwell AL, Choi JM. PPARγ Negatively Regulates T Cell Activation to Prevent Follicular Helper T Cells and Germinal Center Formation. PLOS ONE 2014, 9: e99127. PMID: 24921943, PMCID: PMC4055678, DOI: 10.1371/journal.pone.0099127.Peer-Reviewed Original ResearchConceptsFollicular helper T cellsHelper T cellsT cellsGerminal center reactionTfh cellsSheep red blood cell immunizationRed blood cell immunizationCenter reactionPeroxisome proliferator-activated receptor gammaIL-21 expressionProliferator-activated receptor gammaWild-type T cellsType T cellsGerminal center formationGerminal center B cellsT cell activationCell immunizationAutoantibody productionGlomerular inflammationSignature cytokinesAdaptive immunityGerminal centersGlucose metabolismNF-κBB cells