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 ResearchMeSH KeywordsAnimalsAntibodies, ViralB-LymphocytesEndogenous RetrovirusesImmunoglobulin MMiceMice, Inbred C57BLPolysaccharidesConceptsB-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
Endogenous 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 ResearchMeSH KeywordsAnimalsEndogenous RetrovirusesFemaleHerpes GenitalisHerpesvirus 2, HumanMiceMice, KnockoutVaginal DiseasesConceptsHSV-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
Antibodies against human endogenous retrovirus K102 envelope activate neutrophils in systemic lupus erythematosus
Tokuyama M, Gunn BM, Venkataraman A, Kong Y, Kang I, Rakib T, Townsend MJ, Costenbader KH, Alter G, Iwasaki A. Antibodies against human endogenous retrovirus K102 envelope activate neutrophils in systemic lupus erythematosus. Journal Of Experimental Medicine 2021, 218: e20191766. PMID: 34019642, PMCID: PMC8144942, DOI: 10.1084/jem.20191766.Peer-Reviewed Original ResearchConceptsSystemic lupus erythematosusNeutrophil extracellular trapsLupus erythematosusImmune complexesFormation of NETsEnvelope proteinSLE patient bloodInnate immune activationImmune complex formationActivate neutrophilsInterferon statusAutoantibody levelsIgG levelsHigher interferonImmune activationNeutrophil phagocytosisSLE IgGNeutrophil activationExtracellular trapsSLE plasmaNeutrophil elastasePatient's bloodErythematosusNeutrophilsPhagocytosis
2019
Reply to Iñiguez et al.: ERVmap is a validated approach to mapping proviral endogenous retroviruses in the human genome
Tokuyama M, Kong Y, Iwasaki A. Reply to Iñiguez et al.: ERVmap is a validated approach to mapping proviral endogenous retroviruses in the human genome. Proceedings Of The National Academy Of Sciences Of The United States Of America 2019, 116: 21352-21353. PMID: 31594852, PMCID: PMC6815117, DOI: 10.1073/pnas.1908504116.Peer-Reviewed Original ResearchHuman 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 expressionHumansExpressionThe Lupus Susceptibility Locus Sgp3 Encodes the Suppressor of Endogenous Retrovirus Expression SNERV
Treger RS, Pope SD, Kong Y, Tokuyama M, Taura M, Iwasaki A. The Lupus Susceptibility Locus Sgp3 Encodes the Suppressor of Endogenous Retrovirus Expression SNERV. Immunity 2019, 50: 334-347.e9. PMID: 30709743, PMCID: PMC6382577, DOI: 10.1016/j.immuni.2018.12.022.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsCarrier ProteinsEndogenous RetrovirusesGene Expression RegulationGenetic Predisposition to DiseaseGlycoproteinsHEK293 CellsHumansLupus Erythematosus, SystemicLupus NephritisMiceMice, 129 StrainMice, Inbred C57BLMice, Inbred NZBMice, KnockoutMolecular ChaperonesNuclear ProteinsRepressor Proteins
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