2021
Immune dysregulation and autoreactivity correlate with disease severity in SARS-CoV-2-associated multisystem inflammatory syndrome in children
Ramaswamy A, Brodsky NN, Sumida TS, Comi M, Asashima H, Hoehn KB, Li N, Liu Y, Shah A, Ravindra NG, Bishai J, Khan A, Lau W, Sellers B, Bansal N, Guerrerio P, Unterman A, Habet V, Rice AJ, Catanzaro J, Chandnani H, Lopez M, Kaminski N, Dela Cruz CS, Tsang JS, Wang Z, Yan X, Kleinstein SH, van Dijk D, Pierce RW, Hafler DA, Lucas CL. Immune dysregulation and autoreactivity correlate with disease severity in SARS-CoV-2-associated multisystem inflammatory syndrome in children. Immunity 2021, 54: 1083-1095.e7. PMID: 33891889, PMCID: PMC8043654, DOI: 10.1016/j.immuni.2021.04.003.Peer-Reviewed Original ResearchConceptsMIS-C patientsDisease severityInflammatory syndromeTCR repertoireSARS-CoV-2-associated multisystem inflammatory syndromeAsymptomatic SARS-CoV-2 infectionSARS-CoV-2 infectionAdult COVID-19Post-infectious complicationsMultisystem inflammatory syndromeCytotoxicity genesHealthy pediatricImmune dysregulationMemory TActive infectionMyeloid dysfunctionPatientsSingle-cell RNA sequencingFlow cytometrySerum proteomicsRepertoire analysisElevated expressionSeverityAlarminsCOVID-19
2020
Thymus-derived B cell clones persist in the circulation after thymectomy in myasthenia gravis
Jiang R, Hoehn KB, Lee CS, Pham MC, Homer RJ, Detterbeck FC, Aban I, Jacobson L, Vincent A, Nowak RJ, Kaminski HJ, Kleinstein SH, O'Connor KC. Thymus-derived B cell clones persist in the circulation after thymectomy in myasthenia gravis. Proceedings Of The National Academy Of Sciences Of The United States Of America 2020, 117: 30649-30660. PMID: 33199596, PMCID: PMC7720237, DOI: 10.1073/pnas.2007206117.Peer-Reviewed Original ResearchMeSH KeywordsAdolescentAdultAutoantibodiesBiomarkersB-LymphocytesClonal EvolutionClonal Selection, Antigen-MediatedDisease SusceptibilityFemaleHumansLymphocyte CountMaleMiddle AgedModels, BiologicalMyasthenia GravisRadioimmunoassayReceptors, CholinergicThymectomyThymus GlandV(D)J RecombinationYoung AdultConceptsB cell clonesMyasthenia gravisB cell repertoireB cellsCell clonesPlasma cellsCell repertoireAdditional immunosuppressive treatmentDiminished clinical responseThymic lymphofollicular hyperplasiaComplete stable remissionMajority of patientsAntigen-experienced B cellsRandomized clinical trialsClinical symptom measuresAChR autoantibodiesImmunosuppressive treatmentSteroid doseAutoantibody titersMG thymusClinical responseStable remissionClinical scoresAutoimmune diseasesClinical trialsSingle cell immune profiling of dengue virus patients reveals intact immune responses to Zika virus with enrichment of innate immune signatures
Zhao Y, Amodio M, Vander Wyk B, Gerritsen B, Kumar MM, van Dijk D, Moon K, Wang X, Malawista A, Richards MM, Cahill ME, Desai A, Sivadasan J, Venkataswamy MM, Ravi V, Fikrig E, Kumar P, Kleinstein SH, Krishnaswamy S, Montgomery RR. Single cell immune profiling of dengue virus patients reveals intact immune responses to Zika virus with enrichment of innate immune signatures. PLOS Neglected Tropical Diseases 2020, 14: e0008112. PMID: 32150565, PMCID: PMC7082063, DOI: 10.1371/journal.pntd.0008112.Peer-Reviewed Original ResearchConceptsZika virusCell subsetsDengue virusConcurrent dengue infectionInnate cell responsesInnate immune signaturesVirus-infected individualsDivergent clinical outcomesMosquito-borne human pathogenIntact immune responsePre-existing infectionInnate cell typesSingle-cell immune profilingPublic health importanceCell typesImmune signaturesVirus patientsWest Nile virusAcute patientsClinical outcomesImmune profilingDengue infectionImmune statusFunctional statusImmune cells
2017
Dysregulation of B Cell Repertoire Formation in Myasthenia Gravis Patients Revealed through Deep Sequencing
Vander Heiden JA, Stathopoulos P, Zhou JQ, Chen L, Gilbert TJ, Bolen CR, Barohn RJ, Dimachkie MM, Ciafaloni E, Broering TJ, Vigneault F, Nowak RJ, Kleinstein SH, O'Connor KC. Dysregulation of B Cell Repertoire Formation in Myasthenia Gravis Patients Revealed through Deep Sequencing. The Journal Of Immunology 2017, 198: 1460-1473. PMID: 28087666, PMCID: PMC5296243, DOI: 10.4049/jimmunol.1601415.Peer-Reviewed Original ResearchConceptsDeep sequencing