Cargando…
Lactobacillus gasseri SBT2055 Induces TGF-β Expression in Dendritic Cells and Activates TLR2 Signal to Produce IgA in the Small Intestine
Probiotic bacteria provide benefits in enhancing host immune responses and protecting against infection. Induction of IgA production by oral administration of probiotic bacteria in the intestine has been considered to be one reason for this beneficial effect, but the mechanisms of the effect are poo...
Autores principales: | , , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2014
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4140756/ https://www.ncbi.nlm.nih.gov/pubmed/25144744 http://dx.doi.org/10.1371/journal.pone.0105370 |
_version_ | 1782331557958123520 |
---|---|
author | Sakai, Fumihiko Hosoya, Tomohiro Ono-Ohmachi, Aiko Ukibe, Ken Ogawa, Akihiro Moriya, Tomohiro Kadooka, Yukio Shiozaki, Takuya Nakagawa, Hisako Nakayama, Yosuke Miyazaki, Tadaaki |
author_facet | Sakai, Fumihiko Hosoya, Tomohiro Ono-Ohmachi, Aiko Ukibe, Ken Ogawa, Akihiro Moriya, Tomohiro Kadooka, Yukio Shiozaki, Takuya Nakagawa, Hisako Nakayama, Yosuke Miyazaki, Tadaaki |
author_sort | Sakai, Fumihiko |
collection | PubMed |
description | Probiotic bacteria provide benefits in enhancing host immune responses and protecting against infection. Induction of IgA production by oral administration of probiotic bacteria in the intestine has been considered to be one reason for this beneficial effect, but the mechanisms of the effect are poorly understood. Lactobacillus gasseri SBT2055 (LG2055) is a probiotic bacterium with properties such as bile tolerance, ability to improve the intestinal environment, and it has preventive effects related to abdominal adiposity. In this study, we have found that oral administration of LG2055 induced IgA production and increased the rate of IgA(+) cell population in Peyer's patch and in the lamina propria of the mouse small intestine. The LG2055 markedly increased the amount of IgA in a co-culture of B cells and bone marrow derived dendritic cells (BMDC), and TLR2 signal is critical for it. In addition, it is demonstrated that LG2055 stimulates BMDC to promote the production of TGF-β, BAFF, IL-6, and IL-10, all critical for IgA production from B cells. Combined stimulation of B cells with BAFF and LG2055 enhanced the induction of IgA production. Further, TGF-β signal was shown to be critical for LG2055-induced IgA production in the B cell and BMDC co-culture system, but TGF-β did not induce IgA production in a culture of only B cells stimulated with LG2055. Furthermore, TGF-β was critical for the production of BAFF, IL-6, IL-10, and TGF-β itself from LG2055-stimulated BMDC. These results demonstrate that TGF-β was produced by BMDC stimulated with LG2055 and it has an autocrine/paracrine function essential for BMDC to induce the production of BAFF, IL-6, and IL-10. |
format | Online Article Text |
id | pubmed-4140756 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-41407562014-08-25 Lactobacillus gasseri SBT2055 Induces TGF-β Expression in Dendritic Cells and Activates TLR2 Signal to Produce IgA in the Small Intestine Sakai, Fumihiko Hosoya, Tomohiro Ono-Ohmachi, Aiko Ukibe, Ken Ogawa, Akihiro Moriya, Tomohiro Kadooka, Yukio Shiozaki, Takuya Nakagawa, Hisako Nakayama, Yosuke Miyazaki, Tadaaki PLoS One Research Article Probiotic bacteria provide benefits in enhancing host immune responses and protecting against infection. Induction of IgA production by oral administration of probiotic bacteria in the intestine has been considered to be one reason for this beneficial effect, but the mechanisms of the effect are poorly understood. Lactobacillus gasseri SBT2055 (LG2055) is a probiotic bacterium with properties such as bile tolerance, ability to improve the intestinal environment, and it has preventive effects related to abdominal adiposity. In this study, we have found that oral administration of LG2055 induced IgA production and increased the rate of IgA(+) cell population in Peyer's patch and in the lamina propria of the mouse small intestine. The LG2055 markedly increased the amount of IgA in a co-culture of B cells and bone marrow derived dendritic cells (BMDC), and TLR2 signal is critical for it. In addition, it is demonstrated that LG2055 stimulates BMDC to promote the production of TGF-β, BAFF, IL-6, and IL-10, all critical for IgA production from B cells. Combined stimulation of B cells with BAFF and LG2055 enhanced the induction of IgA production. Further, TGF-β signal was shown to be critical for LG2055-induced IgA production in the B cell and BMDC co-culture system, but TGF-β did not induce IgA production in a culture of only B cells stimulated with LG2055. Furthermore, TGF-β was critical for the production of BAFF, IL-6, IL-10, and TGF-β itself from LG2055-stimulated BMDC. These results demonstrate that TGF-β was produced by BMDC stimulated with LG2055 and it has an autocrine/paracrine function essential for BMDC to induce the production of BAFF, IL-6, and IL-10. Public Library of Science 2014-08-21 /pmc/articles/PMC4140756/ /pubmed/25144744 http://dx.doi.org/10.1371/journal.pone.0105370 Text en © 2014 Sakai et al http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited. |
spellingShingle | Research Article Sakai, Fumihiko Hosoya, Tomohiro Ono-Ohmachi, Aiko Ukibe, Ken Ogawa, Akihiro Moriya, Tomohiro Kadooka, Yukio Shiozaki, Takuya Nakagawa, Hisako Nakayama, Yosuke Miyazaki, Tadaaki Lactobacillus gasseri SBT2055 Induces TGF-β Expression in Dendritic Cells and Activates TLR2 Signal to Produce IgA in the Small Intestine |
title |
Lactobacillus gasseri SBT2055 Induces TGF-β Expression in Dendritic Cells and Activates TLR2 Signal to Produce IgA in the Small Intestine |
title_full |
Lactobacillus gasseri SBT2055 Induces TGF-β Expression in Dendritic Cells and Activates TLR2 Signal to Produce IgA in the Small Intestine |
title_fullStr |
Lactobacillus gasseri SBT2055 Induces TGF-β Expression in Dendritic Cells and Activates TLR2 Signal to Produce IgA in the Small Intestine |
title_full_unstemmed |
Lactobacillus gasseri SBT2055 Induces TGF-β Expression in Dendritic Cells and Activates TLR2 Signal to Produce IgA in the Small Intestine |
title_short |
Lactobacillus gasseri SBT2055 Induces TGF-β Expression in Dendritic Cells and Activates TLR2 Signal to Produce IgA in the Small Intestine |
title_sort | lactobacillus gasseri sbt2055 induces tgf-β expression in dendritic cells and activates tlr2 signal to produce iga in the small intestine |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4140756/ https://www.ncbi.nlm.nih.gov/pubmed/25144744 http://dx.doi.org/10.1371/journal.pone.0105370 |
work_keys_str_mv | AT sakaifumihiko lactobacillusgasserisbt2055inducestgfbexpressionindendriticcellsandactivatestlr2signaltoproduceigainthesmallintestine AT hosoyatomohiro lactobacillusgasserisbt2055inducestgfbexpressionindendriticcellsandactivatestlr2signaltoproduceigainthesmallintestine AT onoohmachiaiko lactobacillusgasserisbt2055inducestgfbexpressionindendriticcellsandactivatestlr2signaltoproduceigainthesmallintestine AT ukibeken lactobacillusgasserisbt2055inducestgfbexpressionindendriticcellsandactivatestlr2signaltoproduceigainthesmallintestine AT ogawaakihiro lactobacillusgasserisbt2055inducestgfbexpressionindendriticcellsandactivatestlr2signaltoproduceigainthesmallintestine AT moriyatomohiro lactobacillusgasserisbt2055inducestgfbexpressionindendriticcellsandactivatestlr2signaltoproduceigainthesmallintestine AT kadookayukio lactobacillusgasserisbt2055inducestgfbexpressionindendriticcellsandactivatestlr2signaltoproduceigainthesmallintestine AT shiozakitakuya lactobacillusgasserisbt2055inducestgfbexpressionindendriticcellsandactivatestlr2signaltoproduceigainthesmallintestine AT nakagawahisako lactobacillusgasserisbt2055inducestgfbexpressionindendriticcellsandactivatestlr2signaltoproduceigainthesmallintestine AT nakayamayosuke lactobacillusgasserisbt2055inducestgfbexpressionindendriticcellsandactivatestlr2signaltoproduceigainthesmallintestine AT miyazakitadaaki lactobacillusgasserisbt2055inducestgfbexpressionindendriticcellsandactivatestlr2signaltoproduceigainthesmallintestine |