Ganal-Vonarburg, Stephanie; Macpherson, Andrew (2016). Our Mothers' Antibodies as Guardians of our Commensals. Trends in molecular medicine, 22(9), pp. 739-741. Cell Press 10.1016/j.molmed.2016.06.010
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Mucosal secretory IgA protects the mammalian body from invasion of commensal bacteria colonizing the intestine. A recent murine study in Cell shows that commensal-specific antibodies of the IgG isotype are also present in the serum and that maternal commensal-specific IgA and IgG are crucial for maintaining host-microbe mutualism in the offspring.