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Classical dendritic cells are required for dietary antigen-mediated peripheral regulatory T cell and tolerance induction

ABSTRACT: Classical dendritic cells are required for dietary antigen-mediated peripheral regulatory T cell and tolerance induction

PROVIDER: PRJNA312191 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR3129160_1.fastq.gz	Fastqsanger.gz
	SRR3129160_2.fastq.gz	Fastqsanger.gz
	SRR3129170_1.fastq.gz	Fastqsanger.gz
	SRR3129170_2.fastq.gz	Fastqsanger.gz
	SRR3129180_1.fastq.gz	Fastqsanger.gz

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Classical dendritic cells are required for dietary antigen-mediated peripheral regulatory T cell and tolerance induction I

Project description:Oral tolerance prevents pathological inflammatory responses towards innocuous foreign antigens via peripheral regulatory T cells (pTreg cells). However, whether a particular subset of antigen-presenting cells (APCs) is required during dietary antigen exposure to instruct naÃ¯ve CD4+ T cells to differentiate into pTreg cells has not been defined. Using myeloid lineage-specific APC depletion in mice, we found that monocyte-derived APCs are dispensable, while classical dendritic cells (cDCs) are critical for pTreg cell induction and oral tolerance. CD11bÂ¬â cDCs from the gut-draining lymph nodes efficiently induced pTreg cells, and conversely, loss of IRF8-dependent CD11bâ cDCs impaired their polarization, although oral tolerance remained intact. These data reveal the hierarchy of cDC subsets in pTreg cell induction and their redundancy during oral tolerance development. Four dendritic cell subpopulations from mouse mesenteric lymphnodes were sorted and compared in their gene expression profile

2016-03-28 | E-GEOD-77303 | biostudies-arrayexpress

Classical dendritic cells are required for dietary antigen-mediated peripheral regulatory T cell and tolerance induction II

Project description:Oral tolerance prevents pathological inflammatory responses towards innocuous foreign antigens via peripheral regulatory T cells (pTreg cells). However, whether a particular subset of antigen-presenting cells (APCs) is required during dietary antigen exposure to instruct naÃ¯ve CD4+ T cells to differentiate into pTreg cells has not been defined. Using myeloid lineage-specific APC depletion in mice, we found that monocyte-derived APCs are dispensable, while classical dendritic cells (cDCs) are critical for pTreg cell induction and oral tolerance. CD11bÂ¬â?? cDCs from the gut-draining lymph nodes efficiently induced pTreg cells, and conversely, loss of IRF8-dependent CD11bâ?? cDCs impaired their polarization, although oral tolerance remained intact. These data reveal the hierarchy of cDC subsets in pTreg cell induction and their redundancy during oral tolerance development. Sorted naÃ¯ve CD45.1 OT-II CD4 T cells were co-cultured with four dendritic cell subpopulations sorted from mouse mesenteric lymphnodes. 24h later OT-II cells were sorted again and compared in their gene expression profile.

2016-03-28 | E-GEOD-77304 | biostudies-arrayexpress

Classical dendritic cells are required for dietary antigen-mediated peripheral regulatory T cell and tolerance induction II

Project description:Oral tolerance prevents pathological inflammatory responses towards innocuous foreign antigens via peripheral regulatory T cells (pTreg cells). However, whether a particular subset of antigen-presenting cells (APCs) is required during dietary antigen exposure to instruct naïve CD4+ T cells to differentiate into pTreg cells has not been defined. Using myeloid lineage-specific APC depletion in mice, we found that monocyte-derived APCs are dispensable, while classical dendritic cells (cDCs) are critical for pTreg cell induction and oral tolerance. CD11b¬– cDCs from the gut-draining lymph nodes efficiently induced pTreg cells, and conversely, loss of IRF8-dependent CD11b– cDCs impaired their polarization, although oral tolerance remained intact. These data reveal the hierarchy of cDC subsets in pTreg cell induction and their redundancy during oral tolerance development.

2016-03-28 | GSE77304 | GEO

Classical dendritic cells are required for dietary antigen-mediated peripheral regulatory T cell and tolerance induction I

Project description:Oral tolerance prevents pathological inflammatory responses towards innocuous foreign antigens via peripheral regulatory T cells (pTreg cells). However, whether a particular subset of antigen-presenting cells (APCs) is required during dietary antigen exposure to instruct naïve CD4+ T cells to differentiate into pTreg cells has not been defined. Using myeloid lineage-specific APC depletion in mice, we found that monocyte-derived APCs are dispensable, while classical dendritic cells (cDCs) are critical for pTreg cell induction and oral tolerance. CD11b¬– cDCs from the gut-draining lymph nodes efficiently induced pTreg cells, and conversely, loss of IRF8-dependent CD11b– cDCs impaired their polarization, although oral tolerance remained intact. These data reveal the hierarchy of cDC subsets in pTreg cell induction and their redundancy during oral tolerance development.

2016-03-28 | GSE77303 | GEO

Classical dendritic cells are required for dietary antigen-mediated induction of peripheral T(reg) cells and tolerance.

Project description:Oral tolerance prevents pathological inflammatory responses to innocuous foreign antigens by peripheral regulatory T cells (pT(reg) cells). However, whether a particular subset of antigen-presenting cells (APCs) is required during dietary antigen exposure for the 'instruction' of naive CD4(+) T cells to differentiate into pT(reg) cells has not been defined. Using myeloid lineage-specific APC depletion in mice, we found that monocyte-derived APCs were dispensable, while classical dendritic cells (cDCs) were critical, for pT(reg) cell induction and oral tolerance. CD11b(-) cDCs from the gut-draining lymph nodes efficiently induced pT(reg) cells and, conversely, loss of transcription factor IRF8-dependent CD11b(-) cDCs impaired their polarization, although oral tolerance remained intact. These data reveal the hierarchy of cDC subsets in the induction of pT(reg) cells and their redundancy during the development of oral tolerance.

| S-EPMC4837106 | biostudies-literature

Classical dendritic cells are required for dietary antigen-mediated peripheral regulatory T cell and tolerance induction

Project description:This SuperSeries is composed of the SubSeries listed below.

2016-03-28 | GSE77305 | GEO

Classical dendritic cells are required for dietary antigen-mediated peripheral regulatory T cell and tolerance induction

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2016-03-28 | E-GEOD-77305 | biostudies-arrayexpress

Impact of dietary antigen on gene expression of Peyer's patch T cells

Project description:Transcriptional profiling shows that Peyer´s patch CD4+ T cells from mice kept on dietary antigens are skewed towards a Tfh cell programme. Continous recognition of dietary antigens does not lead to classical signature of exhaustion.

2019-02-12 | GSE124286 | GEO

Specialized role of migratory dendritic cells in peripheral tolerance induction.

Project description:Harnessing DCs for immunotherapies in vivo requires the elucidation of the physiological role of distinct DC populations. Migratory DCs traffic from peripheral tissues to draining lymph nodes charged with tissue self antigens. We hypothesized that these DC populations have a specialized role in the maintenance of peripheral tolerance, specifically, to generate suppressive Foxp3+ Tregs. To examine the differential capacity of migratory DCs versus blood-derived lymphoid-resident DCs for Treg generation in vivo, we targeted a self antigen, myelin oligodendrocyte glycoprotein, using antibodies against cell surface receptors differentially expressed in these DC populations. Using this approach together with mouse models that lack specific DC populations, we found that migratory DCs have a superior ability to generate Tregs in vivo, which in turn drastically improve the outcome of experimental autoimmune encephalomyelitis. These results provide a rationale for the development of novel therapies targeting migratory DCs for the treatment of autoimmune diseases.

| S-EPMC3561796 | biostudies-literature

Aire regulates transfer of antigen from mTEC to dendritic cells for induction of thymic tolerance

Project description:To investigate the role of Aire in thymic selection, we examined the cellular requirements for generation of ovalbumin (OVA)-specific CD4 and CD8 T cells in mice expressing OVA under the control of the rat insulin promoter (RIP). Aire-deficiency reduced the number of mature single positive (SP) OVA-specific CD4+ or CD8+ T cells in the thymus, independent of OVA expression. Importantly, it also contributed in two way to OVA-dependent negative selection depending on the T cell type. Aire-dependent negative selection of OVA-specific CD8 T cells correlated with Aire-regulated expression of OVA. By contrast, for OVA-specific CD4 T cells, Aire affected tolerance induction by a mechanism that operated independent of the level of OVA expression, controlling access of antigen presenting cells to mTEC-expressed OVA. This study supports the view that one mechanism by which Aire controls thymic negative selection is by regulating the indirect presentation of mTEC-derived antigens by thymic dendritic cells. It also indicates that mTEC can mediate tolerance by direct presentation of Aireregulated antigens to both CD4 and CD8 T cells. Total RNA was extracted from medullary thymic epithelial cells isolated from wildtype and Aire-deficient C57BL/6 mice for comparison of gene expression profiles.

2011-04-06 | E-GEOD-28393 | biostudies-arrayexpress

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