2024
CD23+IgG1+ memory B cells are poised to switch to pathogenic IgE production in food allergy
Ota M, Hoehn K, Fernandes-Braga W, Ota T, Aranda C, Friedman S, Miranda-Waldetario M, Redes J, Suprun M, Grishina G, Sampson H, Malbari A, Kleinstein S, Sicherer S, Curotto de Lafaille M. CD23+IgG1+ memory B cells are poised to switch to pathogenic IgE production in food allergy. Science Translational Medicine 2024, 16: eadi0673. PMID: 38324641, PMCID: PMC11008013, DOI: 10.1126/scitranslmed.adi0673.Peer-Reviewed Original ResearchConceptsMemory B cellsB cellsIgE-producing cellsPeanut allergySerum peanut-specific IgEFood allergyInterleukin-4 (IL-4)-B cell memoryPeanut-specific IgEAllergen-specific immunoglobulin EHigh-affinity B cellsPersistent IgE responsesConcentration of IgESingle-cell RNA sequencing experimentsMemory populationRNA sequencing experimentsIgE productionImmune responseImmunoglobulin ECirculating concentrationsIgE responseAllergySequencing experimentsAra h 2Long-term persistence
2022
Adaptive immune responses to SARS-CoV-2 persist in the pharyngeal lymphoid tissue of children
Xu Q, Milanez-Almeida P, Martins A, Radtke A, Hoehn K, Oguz C, Chen J, Liu C, Tang J, Grubbs G, Stein S, Ramelli S, Kabat J, Behzadpour H, Karkanitsa M, Spathies J, Kalish H, Kardava L, Kirby M, Cheung F, Preite S, Duncker P, Kitakule M, Romero N, Preciado D, Gitman L, Koroleva G, Smith G, Shaffer A, McBain I, McGuire P, Pittaluga S, Germain R, Apps R, Schwartz D, Sadtler K, Moir S, Chertow D, Kleinstein S, Khurana S, Tsang J, Mudd P, Schwartzberg P, Manthiram K. Adaptive immune responses to SARS-CoV-2 persist in the pharyngeal lymphoid tissue of children. Nature Immunology 2022, 24: 186-199. PMID: 36536106, PMCID: PMC10777159, DOI: 10.1038/s41590-022-01367-z.Peer-Reviewed Original ResearchConceptsT cell receptorImmune responseGerminal centersPrevious SARS-CoV-2 infectionSARS-CoV-2 infectionB-cell receptor sequencingTissue-specific immunityCell receptor sequencingAdaptive immune responsesUpper respiratory tractMemory B cellsT cell clonotypesSite of infectionSARS-CoV-2Pharyngeal lymphoid tissuePeripheral bloodLymphocyte populationsLymphoid tissueRespiratory tractCell clonotypesAdaptive immunityB cellsCDR3 sequencesAdenoidsCell receptor
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