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 repertoire tracing identifies rituximab-resistant B cells during myasthenia gravis relapses
Jiang R, Fichtner ML, Hoehn KB, Pham MC, Stathopoulos P, Nowak RJ, Kleinstein SH, O'Connor KC. Single-cell repertoire tracing identifies rituximab-resistant B cells during myasthenia gravis relapses. JCI Insight 2020, 5 PMID: 32573488, PMCID: PMC7453893, DOI: 10.1172/jci.insight.136471.Peer-Reviewed Original ResearchConceptsMuscle-specific kinase myasthenia gravisMemory B cellsB cell subsetsAntibody-secreting cellsB cellsCell subsetsAutoantibody-producing B cellsB-cell depleting therapyCell-depleting therapyB cell clonesB cell survivalGene expression signaturesMyasthenia gravisAutoimmune disordersRelapseB cell samplesReceptor profilingCell clonesExpression signaturesRituximabTherapyCell survivalCellsTreatmentCell samples