2021
Evolving A RIG-I Antagonist: A Modified DNA Aptamer Mimics Viral RNA
Ren X, Gelinas AD, Linehan M, Iwasaki A, Wang W, Janjic N, Pyle A. Evolving A RIG-I Antagonist: A Modified DNA Aptamer Mimics Viral RNA. Journal Of Molecular Biology 2021, 433: 167227. PMID: 34487794, DOI: 10.1016/j.jmb.2021.167227.Peer-Reviewed Original ResearchMeSH KeywordsAntigens, ViralAptamers, NucleotideBinding SitesCloning, MolecularCrystallography, X-RayDEAD Box Protein 58Escherichia coliGene ExpressionGenetic VectorsHumansImmunologic FactorsKineticsModels, MolecularMolecular MimicryMutationNucleic Acid ConformationProtein BindingProtein Conformation, alpha-HelicalProtein Conformation, beta-StrandProtein Interaction Domains and MotifsReceptors, ImmunologicRecombinant ProteinsRNA, ViralSELEX Aptamer TechniqueConceptsHigh-resolution crystal structuresResolution crystal structureRIG-I receptorResult of mutationsSame amino acidsVertebrate organismsProtein receptorsInnate immune receptorsRNA virusesImmune receptorsAmino acidsTool compoundsViral ligandsViral RNAImportant receptorPathogenic moleculesGeneralizable strategyDNA aptamersMolecular mimicryCentral roleDisease statesReceptorsTerminusRNAOrganisms
2019
RIG-I Selectively Discriminates against 5′-Monophosphate RNA
Ren X, Linehan MM, Iwasaki A, Pyle AM. RIG-I Selectively Discriminates against 5′-Monophosphate RNA. Cell Reports 2019, 26: 2019-2027.e4. PMID: 30784585, DOI: 10.1016/j.celrep.2019.01.107.Peer-Reviewed Original ResearchApobec3A 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
2018
The interaction between IKKα and LC3 promotes type I interferon production through the TLR9-containing LAPosome
Hayashi K, Taura M, Iwasaki A. The interaction between IKKα and LC3 promotes type I interferon production through the TLR9-containing LAPosome. Science Signaling 2018, 11 PMID: 29717061, PMCID: PMC6462218, DOI: 10.1126/scisignal.aan4144.Peer-Reviewed Original ResearchConceptsInterferon regulatory factor 7Autophagy protein LC3Type I IFN productionI interferonI IFN productionMicrotubule-associated proteinsPutative LC3Type I interferon productionEndosomal vesiclesAutophagosome formationNoncanonical autophagyToll-like receptor 9Production of IFNStimulation of TLR9Regulatory factor 7Protein LC3Direct bindingI interferon productionIFN productionEndosomesChain 3Type I interferonKinase IKKαLC3Lap formation
2017
The cellular endosomal protein stannin inhibits intracellular trafficking of human papillomavirus during virus entry
Lipovsky A, Erden A, Kanaya E, Zhang W, Crite M, Bradfield C, MacMicking J, DiMaio D, Schoggins JW, Iwasaki A. The cellular endosomal protein stannin inhibits intracellular trafficking of human papillomavirus during virus entry. Journal Of General Virology 2017, 98: 2821-2836. PMID: 29058661, PMCID: PMC5845663, DOI: 10.1099/jgv.0.000954.Peer-Reviewed Original ResearchConceptsHuman papillomavirusEntry of HPVVirus entryImportant infectious causeL1 major capsid proteinHPV typesTrans-Golgi networkInfectious causesProphylactic vaccinesHPV16 infectionL2 minor capsid proteinHPV entryDeadly cancerHPV16 entryBasal levelsInfectionVirus uptakeRetrograde transportHuman keratinocytesCapsid proteinHPV16PapillomavirusVirus uncoatingNon-enveloped virusesVirusSensing Self and Foreign Circular RNAs by Intron Identity
Chen YG, Kim MV, Chen X, Batista PJ, Aoyama S, Wilusz JE, Iwasaki A, Chang HY. Sensing Self and Foreign Circular RNAs by Intron Identity. Molecular Cell 2017, 67: 228-238.e5. PMID: 28625551, PMCID: PMC5610545, DOI: 10.1016/j.molcel.2017.05.022.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsBase SequenceDEAD Box Protein 58Encephalitis Virus, Venezuelan EquineEncephalomyelitis, Venezuelan EquineHEK293 CellsHeLa CellsHost-Pathogen InteractionsHumansImmune ToleranceImmunity, InnateIntronsMiceNucleic Acid ConformationProtein BindingRAW 264.7 CellsReceptors, ImmunologicRNARNA Processing, Post-TranscriptionalRNA, CircularRNA, MessengerRNA-Binding ProteinsSpliceosomesTransfectionConceptsCircular RNAsInnate immunity genesMammalian transcriptionDiverse RNACytoplasmic fociHuman circRNAsMammalian cellsImmunity genesEndogenous splicingHuman intronsInnate immune sensingPrimary sequenceCircRNA sequenceRNA structureCircRNAsUnknown functionIntronsRNASensor RIGImmune sensingInnate immunitySelf-nonself discriminationPotent inductionSequenceBiogenesis
2013
ELF4 is critical for induction of type I interferon and the host antiviral response
You F, Wang P, Yang L, Yang G, Zhao YO, Qian F, Walker W, Sutton R, Montgomery R, Lin R, Iwasaki A, Fikrig E. ELF4 is critical for induction of type I interferon and the host antiviral response. Nature Immunology 2013, 14: 1237-1246. PMID: 24185615, PMCID: PMC3939855, DOI: 10.1038/ni.2756.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCell LineCells, CulturedDNA-Binding ProteinsHEK293 CellsHeLa CellsHost-Pathogen InteractionsHumansImmunoblottingInterferon Regulatory Factor-3Interferon Regulatory Factor-7Interferon-betaMembrane ProteinsMiceMice, Inbred C57BLMice, KnockoutMicroscopy, ConfocalProtein BindingReverse Transcriptase Polymerase Chain ReactionRNA InterferenceSignal TransductionSurvival AnalysisTranscription FactorsTranscriptional ActivationWest Nile FeverWest Nile virus