IgA in human health and diseases: Potential regulator of commensal microbiota

Gut microbiota has extensive and tremendous impacts on human physiology and pathology. The regulation of microbiota is therefore a cardinal problem for the mutualistic relationship, as both microbial overgrowth and excessive immune reactions toward them could potentially be detrimental to host homeo...

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Main Authors: Tadashi Takeuchi, Hiroshi Ohno
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-11-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2022.1024330/full
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author Tadashi Takeuchi
Hiroshi Ohno
Hiroshi Ohno
author_facet Tadashi Takeuchi
Hiroshi Ohno
Hiroshi Ohno
author_sort Tadashi Takeuchi
collection DOAJ
description Gut microbiota has extensive and tremendous impacts on human physiology and pathology. The regulation of microbiota is therefore a cardinal problem for the mutualistic relationship, as both microbial overgrowth and excessive immune reactions toward them could potentially be detrimental to host homeostasis. Growing evidence suggests that IgA, the most dominant secretory immunoglobulin in the intestine, regulates the colonization of commensal microbiota, and consequently, the microbiota-mediated intestinal and extra-intestinal diseases. In this review, we discuss the interactions between IgA and gut microbiota particularly relevant to human pathophysiology. We review current knowledge about how IgA regulates gut microbiota in humans and about the molecular mechanisms behind this interaction. We further discuss the potential role of IgA in regulating human diseases by extrapolating experimental findings, suggesting that IgA can be a future therapeutic strategy that functionally modulates gut microbiota.
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spelling doaj.art-a43a237a44264081bf89266f7ef1a8d12022-12-22T04:35:19ZengFrontiers Media S.A.Frontiers in Immunology1664-32242022-11-011310.3389/fimmu.2022.10243301024330IgA in human health and diseases: Potential regulator of commensal microbiotaTadashi Takeuchi0Hiroshi Ohno1Hiroshi Ohno2Laboratory for Intestinal Ecosystem, RIKEN Center for Integrative Medical Sciences, Yokohama, JapanLaboratory for Intestinal Ecosystem, RIKEN Center for Integrative Medical Sciences, Yokohama, JapanGraduate School of Medical Life Science, Yokohama City University, Yokohama, JapanGut microbiota has extensive and tremendous impacts on human physiology and pathology. The regulation of microbiota is therefore a cardinal problem for the mutualistic relationship, as both microbial overgrowth and excessive immune reactions toward them could potentially be detrimental to host homeostasis. Growing evidence suggests that IgA, the most dominant secretory immunoglobulin in the intestine, regulates the colonization of commensal microbiota, and consequently, the microbiota-mediated intestinal and extra-intestinal diseases. In this review, we discuss the interactions between IgA and gut microbiota particularly relevant to human pathophysiology. We review current knowledge about how IgA regulates gut microbiota in humans and about the molecular mechanisms behind this interaction. We further discuss the potential role of IgA in regulating human diseases by extrapolating experimental findings, suggesting that IgA can be a future therapeutic strategy that functionally modulates gut microbiota.https://www.frontiersin.org/articles/10.3389/fimmu.2022.1024330/fullimmunoglobulin Agut microbiotamicrobial metabolitehuman immunologyadaptive immunity
spellingShingle Tadashi Takeuchi
Hiroshi Ohno
Hiroshi Ohno
IgA in human health and diseases: Potential regulator of commensal microbiota
Frontiers in Immunology
immunoglobulin A
gut microbiota
microbial metabolite
human immunology
adaptive immunity
title IgA in human health and diseases: Potential regulator of commensal microbiota
title_full IgA in human health and diseases: Potential regulator of commensal microbiota
title_fullStr IgA in human health and diseases: Potential regulator of commensal microbiota
title_full_unstemmed IgA in human health and diseases: Potential regulator of commensal microbiota
title_short IgA in human health and diseases: Potential regulator of commensal microbiota
title_sort iga in human health and diseases potential regulator of commensal microbiota
topic immunoglobulin A
gut microbiota
microbial metabolite
human immunology
adaptive immunity
url https://www.frontiersin.org/articles/10.3389/fimmu.2022.1024330/full
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