2022
UVB-mediated DNA damage induces matrix metalloproteinases to promote photoaging in an AhR- and SP1-dependent manner
Kim DJ, Iwasaki A, Chien AL, Kang S. UVB-mediated DNA damage induces matrix metalloproteinases to promote photoaging in an AhR- and SP1-dependent manner. JCI Insight 2022, 7: e156344. PMID: 35316219, PMCID: PMC9090247, DOI: 10.1172/jci.insight.156344.Peer-Reviewed Original ResearchConceptsSpecificity protein 1DNA damageSp1-dependent mannerProtein 1Activator protein-1HaCaT human immortalized keratinocytesExtracellular matrix componentsTranscription factorsAryl hydrocarbon receptorHuman immortalized keratinocytesMatrix componentsHydrocarbon receptorPotential targetImmortalized keratinocytesROSSun-exposed skinType IV collagenMMP2 expressionAhRMatrix metalloproteinasesMechanistic studiesMMP2IV collagenTopical treatmentMMP-1Targeting stem-loop 1 of the SARS-CoV-2 5′ UTR to suppress viral translation and Nsp1 evasion
Vora SM, Fontana P, Mao T, Leger V, Zhang Y, Fu TM, Lieberman J, Gehrke L, Shi M, Wang L, Iwasaki A, Wu H. Targeting stem-loop 1 of the SARS-CoV-2 5′ UTR to suppress viral translation and Nsp1 evasion. Proceedings Of The National Academy Of Sciences Of The United States Of America 2022, 119: e2117198119. PMID: 35149555, PMCID: PMC8892331, DOI: 10.1073/pnas.2117198119.Peer-Reviewed Original ResearchConceptsSARS-CoV-2SARS-CoV-2 nonstructural protein 1Host protein synthesisSARS-CoV-2 5Nonstructural protein 1Viral translationNucleic acid antisenseAntiviral immunityProtein synthesisTherapeutic targetTransgenic miceViral protein synthesisViral replicationDrug resistanceHuman ACE2Infected cellsProtein 1COVID-19Virulence mechanismsNanomolar concentrationsHost translationPathogenic virusesEntry channelSuppressionTranslational suppression
2019
Aedes aegypti AgBR1 antibodies modulate early Zika virus infection of mice
Uraki R, Hastings AK, Marin-Lopez A, Sumida T, Takahashi T, Grover JR, Iwasaki A, Hafler DA, Montgomery RR, Fikrig E. Aedes aegypti AgBR1 antibodies modulate early Zika virus infection of mice. Nature Microbiology 2019, 4: 948-955. PMID: 30858571, PMCID: PMC6533137, DOI: 10.1038/s41564-019-0385-x.Peer-Reviewed Original ResearchConceptsZika virus infectionVirus infectionZika virusAegypti salivary proteinsGuillain-Barre syndromeEarly inflammatory responseSkin of micePrevention of mosquitoInflammatory responseAedes aegypti mosquitoesTherapeutic measuresSalivary factorsSalivary proteinsMosquito-borneInfectionMiceSubstantial mortalityRecent epidemicProtein 1Aegypti mosquitoesAntigenic proteinsVirusAntibodiesMosquitoesAntiserum
2017
IRE1α promotes viral infection by conferring resistance to apoptosis
Fink SL, Jayewickreme TR, Molony RD, Iwawaki T, Landis CS, Lindenbach BD, Iwasaki A. IRE1α promotes viral infection by conferring resistance to apoptosis. Science Signaling 2017, 10 PMID: 28588082, PMCID: PMC5535312, DOI: 10.1126/scisignal.aai7814.Peer-Reviewed Original ResearchMeSH KeywordsAnimalsApoptosisCase-Control StudiesCells, CulturedEndoribonucleasesFemaleHepacivirusHepatitis CHerpes SimplexHumansLiverMaleMiceMice, KnockoutMicroRNAsProtein Serine-Threonine KinasesSimplexvirusVesicular StomatitisVesicular stomatitis Indiana virusViral Nonstructural ProteinsVirus ReplicationX-Box Binding Protein 1ConceptsX-box binding protein 1Type I IFN responseI IFN responseUnfolded protein responseViral-induced apoptosisActivation of IRE1αLiver biopsyAntiviral therapyHealthy controlsAntiviral resistanceViral infectionBinding protein 1Antiapoptotic Bcl-2 familyIFN responseViral replicationDeficient cellsProtein 1Apoptosis resistancePossible targetsProsurvival roleEnzyme 1αApoptosisInfectionIntrinsic pathwayType I