CCII 京都大学大学院医学研究科附属 がん免疫総合研究センター

CCII 科学セミナー「Suppression of epithelial proliferation and tumourigenesis by immunoglobulin A」

開催日時 & 会場

演者

Prof. Daniel Mucida

Professor, The Rockefeller University Investigator, The Howard Hughes Medical Institute
RIKEN

概要

Immunoglobulin A (IgA) is the most abundant antibody isotype produced across mammals and plays a specialized role in mucosal homeostasis. Constantly secreted into the lumen of the intestine, IgA binds commensal microbiota to regulate their colonization and function with unclear implications for health. IgA deficiency is common in humans but is difficult to study due to its complex aetiology and comorbidities. Using genetically and environmentally controlled mice, here we show that IgA-deficient animals have increased susceptibility to endogenous colorectal tumours. The seminar will show cellular and molecular mechanisms related to these effects. Our observations establish a homeostatic function for IgA in tempering physiological epithelial responses to microbiota to maintain mucosal health.


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