Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Protection against autoimmunity is driven by thymic epithelial cell-mediated regulation of Treg development

ABSTRACT: Thymic education of Tregs is superior to negative selection in the prevention of autoimmunity. To address this hypothesis, TCR repertoires of thymic and peripheral Tcells (including Tregs) from conditional NIK KO and WT mice have been sequenced and compared.

ORGANISM(S): Mus musculus

PROVIDER: GSE182535 | GEO | 2021/11/18

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Protection against autoimmunity is driven by thymic epithelial cell-mediated regulation of Treg development

Project description:Thymic education of Tregs is superior to negative selection in the prevention of autoimmunity. To address this hypothesis, TCR repertoirs of thymic and peripheral Tcells (including Tregs) from conditional NIK KO and WT mice have been sequenced and compared.

2021-11-18 | GSE174733 | GEO

Aire suppresses CTLA-4 expression from thymic stroma to control autoimmunity

Project description:We show that thymic epithelial cells in the medulla (mTECs) that present self-antigens (self-Ags) to developing thymocytes for establishing immunological self-tolerance also express CTLA-4 if Aire, loss of which is responsible for the hereditary autoimmunity, is nonfunctional. Upon binding with its ligand, CD80 and CD86, expressed on thymic DCs, CTLA-4/ligand complex was internalized by Aire-deficient mTECs. This attenuated the ability of DCs to provide costimulatory signals and to present self-Ags, resulting in the reduced production of Tregs.

2022-03-21 | GSE155082 | GEO

Transcriptome analysis of thymic APC subsets, mTECs and thymic DCs in comparison to splenic DCs

Project description:Thymic antigen-presenting cells (APCs), including thymic dendritic cells (t-DCs) and medullary thymic epithelial cells (mTECs) have been described to play a critical role in thymic Treg generation. Our findings could show that both these thymic APCs can induce a more pronounced demethylation of Foxp3 and other Treg-specific epigenetic signature genes in developing Tregs when compared to splenic DCs. In order to elucidate the unique properties of thymic APCs, gene expression profiling was performed in comparison to splenic DCs. Transcriptome analysis of thymic APCs revealed differential expression of costimulatory molecules that could be involved in stable Treg generation. Importantly, both mTEC- and t-DC- induced alloantigen-specific Tregs displayed significantly higher efficacy in prolonging skin allograft acceptance when compared to alloantigen-specific Tregs generated by splenic DCs.

2017-03-15 | GSE67834 | GEO

Protection against autoimmunity is driven by thymic epithelial cell-mediated regulation of Treg development

Project description:Protection against autoimmunity is driven by thymic epithelial cell-mediated regulation of Treg development

| PRJNA756684 | ENA

Protection against autoimmunity is driven by thymic epithelial cell-mediated regulation of Treg development

Project description:Protection against autoimmunity is driven by thymic epithelial cell-mediated regulation of Treg development

| PRJNA731351 | ENA

Gene expression by Treg subsets

Project description:Thymic-derived natural T regulatory cells (nTregs) are characterized by functional and phenotypic heterogeneity. Recently, a small fraction of peripheral Tregs have been shown to express Klrg1, but it remains unclear the extent Klrg1 defines a unique Treg subset. Here we show that Klrg1+ Tregs represent a terminally differentiated Treg subset derived from Klrg1- Tregs. This subset is a recent antigen-responsive and a highly activated short-lived Treg population that expresses enhanced levels of Treg suppressive molecules and that preferentially resides within mucosal tissues. The development of Klrg1+ Tregs also requires extensive IL-2R signaling. This activity represents a distinct function for IL-2, independent from its contribution to Treg homeostasis and competitive fitness. These and other properties are analogous to terminally differentiated short-lived CD8+ T effector cells. Our findings suggest that an important pathway driving antigen-activated conventional T lymphocytes also operates for Tregs. Gene expression analysis was performed of this and other Treg subsets based on expression of CD62L, CD69, and Klrg1 to define the molecular properties of Klrg1+ Tregs and its relationship to other Treg subsets found in the peripheral immune tissues. Mice were euthanized, spleen cell preparations were made, and each Treg subset was isolated by FACS cell sorting. RNA was immediately prepared for processing.

2012-08-06 | E-GEOD-36527 | biostudies-arrayexpress

Single-cell RNA-seq of murine thymic Treg cell progenitors and mature Treg cells

Project description:We use single-cell RNA-seq to determine distinct selection phenotypes of 2 rare thymic Treg cell progenitors as well as mature thymic Treg cells

2018-12-31 | GSE123067 | GEO

A unique population of regulatory T cells in heart potentiates cardiac protection from myocardial infarction [scRNA-seq]

Project description:Purpose: The aims of the study were to identify that heart Tregs were clonally expanded, and single-cell TCR repertoires of heart Tregs were different from spleen Tregs. Methods: CD4+ T cells from injured hearts and paired spleens of the C57BL/6J mice were double-sorted by magnetic-activated cell sorting (MACS) and fluorescence activated cell sorting (FACS) to generate single cell RNA-sequence and paired V(D)J sequence 7 days after myocaridal infarction (MI). Results: The characteristics of clonal restriction in heart Tregs were investigated, and there were just a little TCR-sequence sharing between spleen Tregs and heart Tregs.

2020-10-03 | GSE155619 | GEO

Thymic Treg TCR sequencing

Project description:Selection of Aire-dependent thymic regulatory T cells by CD8α+ dendritic cells

| PRJEB6458 | ENA

Essential and non-overlapping IL-2Rα-dependent signaling for thymic development and peripheral homeostasis of regulatory T cells

Project description:IL-2R signaling is essential for regulatory T cell (Treg) function. However, the precise contribution for IL-2 during Treg thymic development, peripheral homeostasis, and lineage stability remains unclear. Here we show that IL-2R signaling is essential for thymic Tregs at an early step for expansion/survival and a later step for functional maturation. Using selective deletion of CD25 in peripheral Tregs, we also find that IL-2R signaling was absolutely essential for their persistence whereas Treg lineage stability was IL-2-independent. CD25 knockout peripheral Tregs showed increased apoptosis, oxidative stress, signs of mitochondrial dysfunction, and reduced transcription of key enzymes of lipid and cholesterol biosynthetic pathways. A divergent IL-2 transcriptional signature was noted for thymic Tregs versus peripheral Tregs. These data indicate that IL-2R signaling in the thymus and the periphery leads to distinctive effects on Treg function, where peripheral Treg survival depends on a non-conventional mechanism of metabolic regulation.

2019-02-01 | GSE121883 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

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