Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Dietary fiber promotes antigen presentation on intestinal epithelial cells and development of small intestinal CD4+CD8αα+ intraepithelial T cells

ABSTRACT: To understand how changes in dietary fiber consumption and SFB colonization impact small intestinal epithelial cells (IECs) and consequently intraepithelial lymphocytes.

ORGANISM(S): Mus musculus

PROVIDER: GSE277294 | GEO | 2025/01/22

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Dataset's files

Source:

			Action	DRS
		Other

Items per page:

1 - 1 of 1

Similar Datasets

Dietary fiber promotes antigen presentation on intestinal epithelial cells and development of small intestinal CD4+CD8αα+ intraepithelial T cells

Project description:Dietary fiber promotes antigen presentation on intestinal epithelial cells and development of small intestinal CD4+CD8αα+ intraepithelial T cells

| PRJNA1161679 | ENA

Kdm6b is required for the maturation and function of intestinal TCRβ+CD8αα+ intraepithelial lymphocytes

Project description:To under the role of Kdm6b in the regulation of intestinal TCRβ+CD8αα+ intraepithelial lymphocytes (IELs), Kdm6b was conditionally deleted in mouse T cells. Small intestinal TCRβ+CD8αα+ IELs were sorted by flow cytometry and RNA-seq was conducted to identify the differentially expressed genes.

2022-08-02 | GSE154444 | GEO

GPR18 is required for a normal CD8αα intestinal intraepithelial lymphocyte compartment.

Project description:Intraepithelial lymphocytes (IELs) play an important role in maintaining the physiology of the small intestine. The majority of mouse IELs express CD8αα and are either γδ or αβ T cells. Although the development and homing of CD8αα IELs have been studied in some detail, the factors controlling their homeostasis and positioning are incompletely understood. Here we demonstrate that G protein-coupled receptor 18 (GPR18) is abundantly expressed in CD8αα IELs and that mice lacking this orphan receptor have reduced numbers of γδT IELs. Mixed bone marrow chimera experiments reveal a markedly reduced contribution of GPR18-deficient cells to the CD8αα IEL compartment and a reduction in the CD8αβ T cell subset. These defects could be rescued by transduction with a GPR18-expressing retrovirus. The GPR18-deficient γδT IELs that remained in mixed chimeras had elevated Thy1, and there were less granzyme B(+) and Vγ7(+) cells, indicating a greater reduction in effector-type cells. Flow cytometric analysis indicated GPR18 deficiency more strongly affected the CD8αα cells in the intraepithelial compared with the adjacent lamina propria compartment. These findings establish a requirement for GPR18 in CD8αα and CD8αβ IELs, and we suggest the receptor has a role in augmenting the accumulation of CD8 T cells in the intraepithelial versus lamina propria compartment.

| S-EPMC4235638 | biostudies-literature

Transcriptional response of small intestinal epithelial cells (S-IECs) to bacterial monocolonization

Project description:Here we analyzed the transcriptional profile of S-IECs sorted from GF and monocolonized mice (C. histolyticum and B. adolescentis), as well as SPF mice colonized with SFB or not.

2016-10-07 | GSE87678 | GEO

Dietary antigens influence the antigen presentation pathway of small intestine epithelium

Project description:Epithelial cells of the small intestine are designed to absorb the nutrients from the diet, so we tested if the absence of dietary macromolecules and protein antigens had an impact on the physiological condition of IECs. We generated RNAseq data from small intestine IECs isolated from mice free of any conventional non-self antigens for TCRab T cells. A comparison with RNAseq data generated from IECs isolated from SPF or GF mice showed clear differences between the transcriptomes of IECs isolated from the AF, SPF or GF mice.

2018-08-23 | GSE118895 | GEO

Dietary fiber is a critical determinant of pathologic ILC2 responses and intestinal inflammation

Project description:Innate lymphoid cells (ILCs) can promote host defense, chronic inflammation or tissue protection and are regulated by cytokines and neuropeptides. However, their regulation by diet and microbiota-derived signals remains unclear. We show that an inulin fiber diet promotes Tph1-expressing inflammatory ILC2s (ILC2INFLAM) in the colon which produce IL-5 but not tissue-protective amphiregulin (AREG), resulting in accumulation of eosinophils. This exacerbates inflammation in a murine model of intestinal damage and inflammation in an ILC2- and eosinophil-dependent manner. Mechanistically, inulin fiber diet elevated microbiota-derived bile acids, including cholic acid (CA) that induced expression of ILC2-activating IL-33. In IBD patients, bile acids, their receptor farnesoid X receptor (FXR), IL-33, and eosinophils were all upregulated compared to controls, suggesting relevance of this diet-ILC2 axis in human IBD pathogenesis. Together, these data reveal that dietary fiber-induced changes in microbial metabolites operate as a rheostat that governs protective versus pathologic ILC2 responses with relevance to precision nutrition for inflammatory diseases.

2024-02-12 | GSE255243 | GEO

The role of dietary fiber in microglial transcriptome

Project description:To understand how dietary fiber affects microglial transcriptome at early stage, we fed mice diets releasing different amount of fiber and profiled microglia at 3 weeks. We found that fiber significantly altered the transcriptomic signature of microglia.

2023-09-08 | GSE186210 | GEO

Transcriptome analysis of innate intestinal intraepithelial lymphocytes

Project description:Characterization of intraepithelial ILC on the basis of CD8α and Ly49E expression

2016-07-08 | GSE83895 | GEO

Single cell profiling of SFB induced transcriptomic changes in small intestinal epithelium and immune system.

Project description:In this project we profiled small intestinal epithelium, lamina propria immune cells as well as intraepithelial immune cells from 5-weeks old WT mice derived from Jackson laboratories and littermate colonized with segmented filamentous bacteria (SFB) 2 weeks prior to analysis, using 10x droplet-based single-cell RNA sequencing.

2023-06-01 | E-MTAB-12391 | biostudies-arrayexpress

Dietary Fiber During Radiotherapy - a Placebo-controlled Randomized Trial

Project description:The investigators hypothesize that an increase in dietary fiber intake during radiation therapy may provide better long-term intestinal health for the cancer survivor. If the hypothesis is not correct, the increased intake may only mean an increase in acute side effects. All participants are advised to consume at least 16 g of dietary fiber/day via food. In addition, participants are invited to take capsules that together contain either 5.5 g of dietary fiber from psyllium husk or placebo.

| 2350423 | ecrin-mdr-crc

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data