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Intestinal IgA Synthesis: a Primitive Form of Adaptive Immunity That Regulates Microbial Communities in the Gut

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Journal Semin Immunol
Date 2006 Dec 13
PMID 17161619
Citations 44
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Abstract

Our intestine is colonized by an impressive community of bacteria, that has profound effects on the immune functions. The relationship between gut microbiota and the immune system is one of reciprocity: bacteria have important contribution in nutrient processing and education of the immune system and conversely, the immune system, particularly gut-associated lymphoid tissues (GALT) plays a key role in shaping the repertoire of gut microbiota. In this review we discuss new insights into the role of IgA in the maintenance of immune homeostasis and the reciprocal interactions between gut B cells and intestinal bacteria.

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