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Interleukin (IL)-21 promotes intestinal IgA response to microbiota
Commensal microbiota-specific Th17 cells are enriched in the intestines, which can convert into Tfh in Peyer’s patches, and are crucial for production of intestinal IgA against microbiota, however, the role of Th17 and Tfh cytokines in regulating the mucosal IgA response to enteric microbiota is sti...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
2015
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4501922/ https://www.ncbi.nlm.nih.gov/pubmed/25586558 http://dx.doi.org/10.1038/mi.2014.134 |
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author | Cao, Anthony T. Yao, Suxia Gong, Bin Nurieva, Roza I. Elson, Charles O. Cong, Yingzi |
author_facet | Cao, Anthony T. Yao, Suxia Gong, Bin Nurieva, Roza I. Elson, Charles O. Cong, Yingzi |
author_sort | Cao, Anthony T. |
collection | PubMed |
description | Commensal microbiota-specific Th17 cells are enriched in the intestines, which can convert into Tfh in Peyer’s patches, and are crucial for production of intestinal IgA against microbiota, however, the role of Th17 and Tfh cytokines in regulating the mucosal IgA response to enteric microbiota is still not completely known. In this study, we found that intestinal IgA was impaired in mice deficient in IL-17 or IL-21 signaling. IL-21, but not IL-17, is able to augment B cell differentiation to IgA(+) cells as mediated by TGFβ1, and accelerate IgA class switch recombination (CSR). IL-21 and retinoic acid (RA) induce IgA(+) B cell development and IgA production, and drives autocrine TGFβ1 production to initiate IgA CSR. Repletion of T cell-deficient TCRβxδ(−/−) mice with Th17 cells specific for commensal bacterial antigen, increased levels of IgA(+) B cells and IgA production in the intestine, which was blocked by neutralizing IL-21. Thus, IL-21 functions to strongly augment IgA production under intestinal environment. Furthermore, IL-21 promotes intestinal B cell homing through α(4)β(7) expression, alone or with TGFβ and RA. Together, IL-21 from microbiota-specific Th17 and/or Tfh cells contributes to robust intestinal IgA levels by enhancing IgA(+) CSR, IgA production, and B cell trafficking into the intestine. |
format | Online Article Text |
id | pubmed-4501922 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
record_format | MEDLINE/PubMed |
spelling | pubmed-45019222016-03-01 Interleukin (IL)-21 promotes intestinal IgA response to microbiota Cao, Anthony T. Yao, Suxia Gong, Bin Nurieva, Roza I. Elson, Charles O. Cong, Yingzi Mucosal Immunol Article Commensal microbiota-specific Th17 cells are enriched in the intestines, which can convert into Tfh in Peyer’s patches, and are crucial for production of intestinal IgA against microbiota, however, the role of Th17 and Tfh cytokines in regulating the mucosal IgA response to enteric microbiota is still not completely known. In this study, we found that intestinal IgA was impaired in mice deficient in IL-17 or IL-21 signaling. IL-21, but not IL-17, is able to augment B cell differentiation to IgA(+) cells as mediated by TGFβ1, and accelerate IgA class switch recombination (CSR). IL-21 and retinoic acid (RA) induce IgA(+) B cell development and IgA production, and drives autocrine TGFβ1 production to initiate IgA CSR. Repletion of T cell-deficient TCRβxδ(−/−) mice with Th17 cells specific for commensal bacterial antigen, increased levels of IgA(+) B cells and IgA production in the intestine, which was blocked by neutralizing IL-21. Thus, IL-21 functions to strongly augment IgA production under intestinal environment. Furthermore, IL-21 promotes intestinal B cell homing through α(4)β(7) expression, alone or with TGFβ and RA. Together, IL-21 from microbiota-specific Th17 and/or Tfh cells contributes to robust intestinal IgA levels by enhancing IgA(+) CSR, IgA production, and B cell trafficking into the intestine. 2015-01-14 2015-09 /pmc/articles/PMC4501922/ /pubmed/25586558 http://dx.doi.org/10.1038/mi.2014.134 Text en http://www.nature.com/authors/editorial_policies/license.html#terms Users may view, print, copy, and download text and data-mine the content in such documents, for the purposes of academic research, subject always to the full Conditions of use:http://www.nature.com/authors/editorial_policies/license.html#terms |
spellingShingle | Article Cao, Anthony T. Yao, Suxia Gong, Bin Nurieva, Roza I. Elson, Charles O. Cong, Yingzi Interleukin (IL)-21 promotes intestinal IgA response to microbiota |
title | Interleukin (IL)-21 promotes intestinal IgA response to microbiota |
title_full | Interleukin (IL)-21 promotes intestinal IgA response to microbiota |
title_fullStr | Interleukin (IL)-21 promotes intestinal IgA response to microbiota |
title_full_unstemmed | Interleukin (IL)-21 promotes intestinal IgA response to microbiota |
title_short | Interleukin (IL)-21 promotes intestinal IgA response to microbiota |
title_sort | interleukin (il)-21 promotes intestinal iga response to microbiota |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4501922/ https://www.ncbi.nlm.nih.gov/pubmed/25586558 http://dx.doi.org/10.1038/mi.2014.134 |
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