2019
Antigen presentation by CD301b+ dermal dendritic cells dictates CD4+ T cell fate
Tatsumi N, Iwasaki A, Kumamoto Y. Antigen presentation by CD301b+ dermal dendritic cells dictates CD4+ T cell fate. The Journal Of Immunology 2019, 202: 56.9-56.9. DOI: 10.4049/jimmunol.202.supp.56.9.Peer-Reviewed Original ResearchCD4 T cellsOT-II cellsAntigen-specific CD4 T cellsDermal dendritic cellsDendritic cellsMHC class IIT cellsTh2 differentiationAntigen presentationCognate interactionPolyclonal CD4T cellsT cells 7 daysEffector CD4 T cellsT helper type 2 cellsMajor DC subsetsIL-4 productionEpidermal Langerhans cellsCells 7 daysType 2 cellsDC subsetsT cell fateLymph nodesOverall cell cycle progressionLangerhans cellsTh2 cellsApobec3A maintains HIV-1 latency through recruitment of epigenetic silencing machinery to the long terminal repeat
Taura M, Song E, Ho YC, Iwasaki A. Apobec3A maintains HIV-1 latency through recruitment of epigenetic silencing machinery to the long terminal repeat. Proceedings Of The National Academy Of Sciences Of The United States Of America 2019, 116: 2282-2289. PMID: 30670656, PMCID: PMC6369738, DOI: 10.1073/pnas.1819386116.Peer-Reviewed Original ResearchMeSH KeywordsCD4-Positive T-LymphocytesCell LineCytidine DeaminaseEpigenesis, GeneticGene Expression Regulation, ViralGene SilencingHIV InfectionsHIV Long Terminal RepeatHIV-1HumansNF-kappa BProtein BindingProtein Interaction Domains and MotifsProteinsSequence DeletionSp1 Transcription FactorVirus ActivationVirus LatencyConceptsHIV-1 latencyHIV-1 reactivationCD4 T cellsT cellsHuman primary CD4 T cellsInfected CD4 T cellsHIV-1-infected cellsPrimary CD4 T cellsLong terminal repeat regionHIV-1Therapeutic strategiesLower reactivationProviral DNALatency maintenanceTarget cellsLatency stateCell linesLong terminal repeatTerminal repeat regionMolecular mechanismsReactivationCellsKnockdownA3AUnexpected role
2014
A local macrophage chemokine network sustains protective tissue-resident memory CD4 T cells
Iijima N, Iwasaki A. A local macrophage chemokine network sustains protective tissue-resident memory CD4 T cells. Science 2014, 346: 93-98. PMID: 25170048, PMCID: PMC4254703, DOI: 10.1126/science.1257530.Peer-Reviewed Original ResearchConceptsMemory lymphocyte clustersMemory T cellsT cellsCD8 tissue-resident memory T cellsTissue-resident memory CD4 T cellsHerpes simplex virus 2 infectionTissue-resident memory T cellsSimplex virus 2 infectionMemory CD4 T cellsEfficient local controlPool of CD4Role of CD4CD4 T cellsVirus 2 infectionVaginal CD4Parabiotic miceGenital mucosaVaccine strategiesChemokine networkLymphocyte clustersHSV-2Viral infectionCD4Local controlInfection
2009
Inflammasome recognition of influenza virus is essential for adaptive immune responses
Ichinohe T, Lee HK, Ogura Y, Flavell R, Iwasaki A. Inflammasome recognition of influenza virus is essential for adaptive immune responses. Journal Of Experimental Medicine 2009, 206: 79-87. PMID: 19139171, PMCID: PMC2626661, DOI: 10.1084/jem.20081667.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsAntibody FormationApoptosis Regulatory ProteinsCalcium-Binding ProteinsCARD Signaling Adaptor ProteinsCarrier ProteinsCaspase 1CD4-Positive T-LymphocytesCD8-Positive T-LymphocytesCell MovementCytoskeletal ProteinsDendritic CellsImmunity, CellularImmunity, InnateImmunoglobulin IsotypesInterleukin-1betaLungMacrophages, AlveolarMiceMice, Inbred C57BLMice, KnockoutMultiprotein ComplexesNasal Lavage FluidNLR Family, Pyrin Domain-Containing 3 ProteinOrthomyxoviridaeOrthomyxoviridae InfectionsReceptors, Interleukin-1Survival AnalysisConceptsInfluenza virus infectionNOD-like receptorsInfluenza virusVirus infectionAdaptive immunityInflammasome activationRetinoic acid-inducible gene I.CD8 T cell responsesCaspase-1Influenza virus resultsMucosal IgA secretionProtective antiviral immunitySystemic IgG responseCD4 T cellsT cell responsesAdaptive immune responsesType I interferonInnate immune systemRespiratory infectionsIgG responsesProtective immunityTLR signalsIgA secretionReceptor 7T cells
2008
Dendritic cells and B cells maximize mucosal Th1 memory response to herpes simplex virus
Iijima N, Linehan MM, Zamora M, Butkus D, Dunn R, Kehry MR, Laufer TM, Iwasaki A. Dendritic cells and B cells maximize mucosal Th1 memory response to herpes simplex virus. Journal Of Experimental Medicine 2008, 205: 3041-3052. PMID: 19047439, PMCID: PMC2605233, DOI: 10.1084/jem.20082039.Peer-Reviewed Original ResearchConceptsMemory Th1 cellsDendritic cellsTh1 cellsB cellsIFN-gammaHerpes simplex virus 2 infectionAntiviral protectionSimplex virus 2 infectionMemory CD4 T cellsFurther viral replicationTh1 memory responseHSV-2 infectionCD4 T cellsLocal dendritic cellsVirus 2 infectionAntigen-presenting cellsCytotoxic T lymphocytesMHC class IISite of infectionHerpes simplex virusTh1 responseImmunized miceRecall responsesViral antigensMHC classIn vivo requirement for autophagy in antigen presentation by dendritic cells
LEE H, Lee Y, Chervonsky A, Mizushima N, Iwasaki A. In vivo requirement for autophagy in antigen presentation by dendritic cells. The FASEB Journal 2008, 22: 1068.13-1068.13. DOI: 10.1096/fasebj.22.1_supplement.1068.13.Peer-Reviewed Original ResearchCD4 T cellsCD4 T cell responsesT cell responsesDendritic cellsAntigen presentationT cellsMajor histocompatibility complexCell responsesFetal liver chimeric miceClass II major histocompatibility complexLiver chimeric miceDegradation of antigenMHC II moleculesPresentation of antigensDendritic cell abilityConditional knockout miceMHC-II complexesCD11c-CreRole of autophagyMHC-IIKnockout miceChimeric miceCytosolic antigensVivo requirementAntigenAutophagy and antiviral immunity
Lee HK, Iwasaki A. Autophagy and antiviral immunity. Current Opinion In Immunology 2008, 20: 23-29. PMID: 18262399, PMCID: PMC2271118, DOI: 10.1016/j.coi.2008.01.001.Peer-Reviewed Original ResearchConceptsViral infectionViral replicationAdaptive antiviral immune responsesEndogenous viral antigensCD4 T cellsMHC class II loading compartmentsAntiviral immune responseCritical effector mechanismAdaptive immune systemViral antigensEffector mechanismsT cellsImmune responseAntiviral immunityImmune systemLoading compartmentCertain virusesInfectionAutophagyRecent studiesCellsAntigenImmunityCellular homeostasis
2007
Division of Labor by Dendritic Cells
Iwasaki A. Division of Labor by Dendritic Cells. Cell 2007, 128: 435-436. PMID: 17289563, DOI: 10.1016/j.cell.2007.01.024.Peer-Reviewed Original Research