Abstract:Immunoglobulin A (IgA), the main antibody isotype found in the intestine, has evolved to maintain the stability of commensal communities, and prevent dysbiosis. In stark contrast to systemic antibody response against pathogens, the generation of IgA against intestinal resident microbes assures the simultaneous binding to multiple and diverse commensal-derived antigens. However, the exact mechanisms by which B cells mount such broadly reactive IgA response to the gut microbiome at the mucosal barrier remain elu… Show more
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