2024
A B cell screen against endogenous retroviruses identifies glycan-reactive IgM that recognizes a broad array of enveloped viruses
Yang Y, Treger R, Hernandez-Bird J, Lu P, Mao T, Iwasaki A. A B cell screen against endogenous retroviruses identifies glycan-reactive IgM that recognizes a broad array of enveloped viruses. Science Immunology 2024, 9: eadd6608. PMID: 39514636, DOI: 10.1126/sciimmunol.add6608.Peer-Reviewed Original ResearchConceptsB-1 cellsB cell-deficient miceEndogenous retrovirusesEnveloped virusesNatural IgM antibodiesGermline-encoded antibodiesNaive miceInnate antiviral mechanismsGenetic invadersB cellsVertebrate genomesNatural antibody repertoireRepertoire profilingSurface antigensInfectious endogenous retrovirusIgM antibodiesSelf-proteinsComplement pathwayAntibody repertoireAntibodiesMiceRetrovirusesVirusSensor stimulationGlycoprotein
2022
Glycan-specific B-1 cells mediate blockade of endogenous retroviruses emergence through recognition of conserved glycan epitopes
Yang Y, Treger R, Hernandez-Bird J, Iwasaki A. Glycan-specific B-1 cells mediate blockade of endogenous retroviruses emergence through recognition of conserved glycan epitopes. The Journal Of Immunology 2022, 208: 126.31-126.31. DOI: 10.4049/jimmunol.208.supp.126.31.Peer-Reviewed Original ResearchB-1 cellsB cell populationsB cellsEndogenous retrovirusesCell-intrinsic controlNatural antibodiesImmunodeficient miceUnimmunized miceGlycan-specific antibodiesClonal repertoirePleural cavityRepertoire profilingViral antigensBlockadeComplement pathwayVH genesCell compartmentAntibodiesGlycan epitopesMiceRetrovirusesAbstract Endogenous retrovirusesEpitopesSensor stimulationCellsEndogenous Retroviruses Provide Protection Against Vaginal HSV-2 Disease
Jayewickreme R, Mao T, Philbrick W, Kong Y, Treger RS, Lu P, Rakib T, Dong H, Dang-Lawson M, Guild WA, Lau TJ, Iwasaki A, Tokuyama M. Endogenous Retroviruses Provide Protection Against Vaginal HSV-2 Disease. Frontiers In Immunology 2022, 12: 758721. PMID: 35058919, PMCID: PMC8764156, DOI: 10.3389/fimmu.2021.758721.Peer-Reviewed Original ResearchConceptsHSV-2 infectionHSV-2 diseaseHerpes simplex virus type 2 infectionSimplex virus type 2 infectionEnhanced type I interferonIntravaginal HSV-2 infectionVaginal HSV-2 infectionVirus type 2 infectionEndogenous retrovirusesReceptor-deficient miceType 2 infectionHigh systemic levelsWildtype C57BL/6 miceType I interferonTLR7-/- miceC57BL/6 miceInfectious endogenous retrovirusDeficient miceIntravaginal applicationAntiviral immunityI interferonVaginal tissueDetrimental functionsTLR7Mice
2021
Endogenous retroviruses mediate IFN-independent protection against vaginal HSV-2 infection
Tokuyama M, Jayewickreme R, Mao T, Philbrick W, Kong Y, Dong H, Treger R, Rakib T, Iwasaki A. Endogenous retroviruses mediate IFN-independent protection against vaginal HSV-2 infection. The Journal Of Immunology 2021, 206: 20.39-20.39. DOI: 10.4049/jimmunol.206.supp.20.39.Peer-Reviewed Original ResearchHSV-2 infectionVaginal HSV-2 infectionTight junction proteinsB6 miceVaginal epitheliumHerpes simplex virus type 2 infectionSimplex virus type 2 infectionEnhanced type I interferonIntravaginal HSV-2 infectionVirus type 2 infectionToll-like receptor 7Epithelial tight junction proteinsEndogenous retrovirusesReceptor-deficient miceJunction proteinsType 2 infectionHigh systemic levelsWildtype C57BL/6 miceType I interferonDisease courseC57BL/6 miceInfectious endogenous retrovirusReceptor 7Disease burdenHSV-2Glycan-reactive natural antibodies mediate blockade of endogenous retroviruses emergence
Yang Y, Treger R, Hernandez-Bird J, Iwasaki A. Glycan-reactive natural antibodies mediate blockade of endogenous retroviruses emergence. The Journal Of Immunology 2021, 206: 114.09-114.09. DOI: 10.4049/jimmunol.206.supp.114.09.Peer-Reviewed Original ResearchB-1 cellsB cell populationsB cellsNatural antibodiesEndogenous retrovirusesCell-intrinsic controlImmunodeficient miceSelf-antigensUnimmunized miceFetal haematopoiesisGlycan-specific antibodiesClonal repertoirePleural cavityRepertoire profilingViral antigensBlockadeComplement pathwayVH genesCell compartmentAntibodiesCell-specificAbstract Endogenous retrovirusesMiceGenetic invadersVertebrate genomes
2019
Human APOBEC3G Prevents Emergence of Infectious Endogenous Retrovirus in Mice
Treger RS, Tokuyama M, Dong H, Salas-Briceno K, Ross SR, Kong Y, Iwasaki A. Human APOBEC3G Prevents Emergence of Infectious Endogenous Retrovirus in Mice. Journal Of Virology 2019, 93: 10.1128/jvi.00728-19. PMID: 31341050, PMCID: PMC6798113, DOI: 10.1128/jvi.00728-19.Peer-Reviewed Original ResearchConceptsToll-like receptor 7Infectious endogenous retrovirusHuman APOBEC3GAPOBEC3GHA3GEndogenous retrovirusesAntiviral restriction factorsReceptor 7Human endogenous retrovirusesTransgenic miceERV RNAsERV reactivationMiceAPOBEC3 proteinsCell-intrinsic defenseHost mechanismsPrevents emergenceRestriction factorsPermissive cellsDeleterious consequencesSubsequent disruptionRetrovirusesEctopic expressionHumansExpressionApplication of a Modified Smart-seq2 Sample Preparation Protocol for Rare Cell Full-length Single-cell mRNA Sequencing to Mouse Oocytes.
Treger RS, Pope SD, Xing X, Iwasaki A. Application of a Modified Smart-seq2 Sample Preparation Protocol for Rare Cell Full-length Single-cell mRNA Sequencing to Mouse Oocytes. Bio-protocol 2019, 9: e3345. PMID: 33654848, PMCID: PMC7854224, DOI: 10.21769/bioprotoc.3345.Peer-Reviewed Original ResearchEndogenous retrovirusesFull-length cDNA libraryRNA sequencing librariesSmart-seq2 protocolSingle-cell mRNALibrary preparation methodsMurine genomeCDNA librarySequencing librariesExpression analysisERV expressionPrecise regulationGerm cellsIsolate populationMouse oocytesSubsequent sequencingOocytesMature oocytesSample preparation protocolFamily membersRetroelementsGenomeEmbryogenesisLibraryPreparation protocol
2018
ERVmap analysis reveals genome-wide transcription of human endogenous retroviruses
Tokuyama M, Kong Y, Song E, Jayewickreme T, Kang I, Iwasaki A. ERVmap analysis reveals genome-wide transcription of human endogenous retroviruses. Proceedings Of The National Academy Of Sciences Of The United States Of America 2018, 115: 12565-12572. PMID: 30455304, PMCID: PMC6294949, DOI: 10.1073/pnas.1814589115.Peer-Reviewed Original ResearchConceptsEndogenous retrovirusesGenome-wide identificationProtein-coding sequencesLocus-specific expressionWide transcriptionHuman genomeHuman endogenous retrovirusesERV lociExpression patternsRetroviral elementsPrimary cellsPeripheral blood mononuclear cellsRange of diseasesBreast cancer tissue samplesHuman healthSystemic lupus erythematosusBlood mononuclear cellsCancer tissue samplesDisease-associated antigensCell linesRNALack of toolsWeb toolLupus erythematosusPerforin expression
2012
Innate Immune Recognition of HIV-1
Iwasaki A. Innate Immune Recognition of HIV-1. Immunity 2012, 37: 389-398. PMID: 22999945, PMCID: PMC3578946, DOI: 10.1016/j.immuni.2012.08.011.Peer-Reviewed Original Research