2023
Metabolic fitness of IgA+ plasma cells in the gut requires DOCK8
Zhang B, Chen S, Yin X, McBride C, Gertie J, Yurieva M, Bielecka A, Hoffmann B, Hinson J, Grassmann J, Xu L, Siniscalco E, Soldatenko A, Hoyt L, Joseph J, Norton E, Uthaman G, Palm N, Liu E, Eisenbarth S, Williams A. Metabolic fitness of IgA+ plasma cells in the gut requires DOCK8. Mucosal Immunology 2023, 17: 431-449. PMID: 38159726, DOI: 10.1016/j.mucimm.2023.12.001.Peer-Reviewed Original ResearchPlasma cellsLamina propriaT cell-dependent antigensCytokinesis 8 (DOCK8) mutationsDOCK8-deficient miceMucosal IgA productionRecurrent gastrointestinal infectionGut lamina propriaPoor antibody responseIgA class switchingAntigen-specific IgAEarly B cell activationLong-term survivalB cell activationGut IgAFood antigensAntibody responseIgA productionImmune homeostasisGastrointestinal infectionsPrimary immunodeficiencyT cellsPC compartmentB cellsCell activation
2020
Divergent T follicular helper cell requirement for IgA and IgE production to peanut during allergic sensitization
Zhang B, Liu E, Gertie JA, Joseph J, Xu L, Pinker EY, Waizman DA, Catanzaro J, Hamza KH, Lahl K, Gowthaman U, Eisenbarth SC. Divergent T follicular helper cell requirement for IgA and IgE production to peanut during allergic sensitization. Science Immunology 2020, 5 PMID: 32385053, PMCID: PMC8518330, DOI: 10.1126/sciimmunol.aay2754.Peer-Reviewed Original ResearchConceptsFood antigensIgE productionIgA productionFollicular helper cellsMinority of miceHelper cell requirementDominant antibody isotypeCross-reactive IgAFollicular regulatoryDietary antigensAllergic sensitizationTolerogenic responsesMucosal adjuvantMucosal IgAHelper cellsAntibody isotypesStool samplesImmunoglobulin AT cellsFood exposureGerminal centersFood allergensAntibody productionIgADietary exposure