Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Transcription factor Bach2 attenuates T cell receptor induced transcription to control regulatory T cell differentiation and homeostasis [ATAC-seq]

ABSTRACT: The differentiation and homeostasis of Foxp3+ regulatory T (Treg) cells is strictly controlled by T cell receptor (TCR) signals; however, the molecular regulators of these processes are incompletely known. Here we found that Bach2 was a key regulator of Treg cell differentiation and homeostasis downstream of TCR signalling. Bach2 prevented premature differentiation of fully suppressive effector (e)Treg cells, limited IL-10 production and was required for the development of peripherally induced (p)Treg cells in the gastrointestinal tract. We found that Bach2 attenuated TCR signalling-induced and IRF4-dependent Treg cell differentiation programs. Deletion of IRF4 promoted inducible Treg cell differentiation and rescued pTreg cell differentiation in the absence of Bach2. In turn, loss of Bach2 normalised eTreg cell differentiation of IRF4-deficient Treg cells. Mechanistically, Bach2 counteracted DNA-binding activity of IRF4 and limited chromatin accessibility, thereby attenuating IRF4-dependent transcriptional programs. Thus, Bach2 balanced TCR signalling induced transcriptional activity of IRF4 to maintain Treg cell homeostasis.

ORGANISM(S): Mus musculus

PROVIDER: GSE126806 | GEO | 2019/11/07

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Similar Datasets

Transcription factor Bach2 attenuates T cell receptor induced transcription to control regulatory T cell differentiation and homeostasis [ATAC-seq II]

Project description:The differentiation and homeostasis of Foxp3+ regulatory T (Treg) cells is strictly controlled by T cell receptor (TCR) signals; however, the molecular regulators of these processes are incompletely known. Here we found that Bach2 was a key regulator of Treg cell differentiation and homeostasis downstream of TCR signalling. Bach2 prevented premature differentiation of fully suppressive effector (e)Treg cells, limited IL-10 production and was required for the development of peripherally induced (p)Treg cells in the gastrointestinal tract. We found that Bach2 attenuated TCR signalling-induced and IRF4-dependent Treg cell differentiation programs. Deletion of IRF4 promoted inducible Treg cell differentiation and rescued pTreg cell differentiation in the absence of Bach2. In turn, loss of Bach2 normalised eTreg cell differentiation of IRF4-deficient Treg cells. Mechanistically, Bach2 counteracted DNA-binding activity of IRF4 and limited chromatin accessibility, thereby attenuating IRF4-dependent transcriptional programs. Thus, Bach2 balanced TCR signalling induced transcriptional activity of IRF4 to maintain Treg cell homeostasis.

2019-11-07 | GSE137246 | GEO

Transcription factor Bach2 attenuates T cell receptor induced transcription to control regulatory T cell differentiation and homeostasis [RNA-seq II]

2019-11-07 | GSE137243 | GEO

Transcription factor Bach2 attenuates T cell receptor induced transcription to control regulatory T cell differentiation and homeostasis [RNA-seq]

2019-11-07 | GSE126810 | GEO

Transcription factor Bach2 attenuates T cell receptor induced transcription to control regulatory T cell differentiation and homeostasis [ChIP-seq]

2019-11-07 | GSE126800 | GEO

mTOR coordinates transcriptional programs and mitochondrial metabolism of activated Treg subsets to protect tissue homeostasis

Project description:Regulatory T (Treg) cells derived from the thymus (tTreg) and periphery (pTreg) play central and distinct roles in immunosuppression, but mechanisms governing the generation and activation of Treg subsets in vivo remain uncertain. Here, we report that mechanistic target of rapamycin (mTOR) unexpectedly supports the homeostasis and functional activation of tTreg and pTreg cells. Further, mTOR signaling is crucial for programming activated Treg cell effector function to protect immune tolerance and tissue homeostasis. Treg-specific deletion of mTOR drives spontaneous TH2 responses and altered barrier tissue homeostasis, associated with reductions in both thymic derived effector Treg (eTreg) and pTreg cells. Mechanistically, mTOR acts downstream of antigenic signals to drive IRF4 expression and mitochondrial metabolism, and accordingly, disruption of mitochondrial metabolism severely impairs Treg cell suppressive function and their homeostasis in tissues. Collectively, our results demonstrate that mTOR coordinates transcriptional and metabolic programs in activated Treg subsets to mediate tissue homeostasis

2019-09-12 | GSE104130 | GEO

The TNF receptor super family - NF-κB axis is critical to maintain effector regulatory T cells in lymphoid and non-lymphoid tissues [RNA-seq]

Project description:After exiting the thymus, Foxp3+ regulatory T (Treg) cells undergo further differentiation in the periphery resulting in the generation of effector (e)Treg cells, a process dependent on TCR signaling and the transcription factor IRF4. Here we show tumor necrosis factor receptor super family (TNFRSF) signaling plays a crucial role in the development and maintenance of eTreg cells. TNFRSF signaling activated the NF-κB transcription factor RelA and induced expansion and survival of eTreg cells in lymphoid and non-lymphoid tissues, including RORγt+ resident Treg cells in the small intestine. RelA regulated basic cellular processes in Treg cells, including cell survival and proliferation in response to TNFRSF signaling, but was not required for IRF4 expression or DNA binding, indicating that both pathways operate independently. Importantly, a similar pathway appeared to be active in humans, as patients with a point mutation in NF-κB1, a binding partner of RelA, had severely compromised Treg cells. Therefore, although TCR signaling is essential for eTreg cell differentiation, the TNFRSF-NF-κB axis was additionally required in a non-redundant manner to maintain the pool of eTreg cells.

2017-08-28 | GSE98262 | GEO

The TNF receptor super family - NF-κB axis is critical to maintain effector regulatory T cells in lymphoid and non-lymphoid tissues [ChIP-seq]

2017-08-28 | GSE98263 | GEO

Differentiation and homeostasis of effector Treg cells are regulated by inositol polyphosphates modulating Ca2+ influx

Project description:Activated Foxp3+ regulatory T (Treg) cells differentiate into effector Treg (eTreg) cells to maintain peripheral immune homeostasis and tolerance. T cell receptor (TCR)-mediated induction and regulation of store-operated Ca2+ entry (SOCE) is essential for eTreg cell differentiation and function. However, SOCE regulation in Treg cells remains unclear. Here we show that inositol polyphosphate multikinase (IPMK), which generates inositol tetrakisphosphate and inositol pentakisphosphate, is a pivotal regulator of Treg cell differentiation downstream of TCR signaling. IPMK is highly expressed in TCR-stimulated Treg cells and promotes a TCR-induced Treg cell program. IPMK-deficient Treg cells display aberrant T cell activation and impaired differentiation into RORγt+ Treg cells, and tissue-resident Treg cells. Mechanistically, IPMK controls the generation of higher-order inositol phosphates, thereby promoting Ca2+ mobilization and Treg cell effector functions. Our findings identify IPMK as a critical regulator of TCR-mediated Ca2+ influx and highlight the importance of IPMK in Treg cell-mediated immune homeostasis.

2023-05-18 | GSE198960 | GEO

PD-L1 – PD-1 interactions limit effector Treg cell populations at homeostasis and during infection

Project description:While much is known about the factors that promote diverse Treg cell responses, less is known about mechanisms that constrain Treg cells. Here we demonstrate phenotypic and transcriptional profiling at homeostasis, which reveals TCR activation promotes a population of Treg cells that display an effector phenotype (eTreg) enriched for production of suppressive proteins such as IL-10 and CTLA-4. However, these eTreg cells express the inhibitory receptor PD-1 and blockade of PD-L1 or loss of PD-1 results in increased eTreg cell activity associated with enhanced homeostatic proliferation and survival. Thus, eTreg cell expression of PD-1 acts as a sensor to rapidly tune the pool of eTreg cells at homeostasis.

2021-10-24 | GSE186350 | GEO

BACH2 is repurposed following Treg lineage commitment to drive the functional quiescence and maintenance of resting Treg cells

Project description:In various tissues, cellular homeostasis is achieved by functionally quiescent stem cells which self renew while giving rise to differentiated progeny. Regulatory T (Treg) cells are composed of functionally quiescent resting Treg (rTreg) cells which differentiate into activated Treg (aTreg) cells upon antigen stimulation. How rTreg cells remain quiescent despite chronic exposure to cognate self- and foreign antigens is unclear. The transcription factor BACH2 is critical for early Treg lineage specification but its function following lineage commitment is unresolved. Here, we show Bach2 is highly expressed in lineage-committed rTreg cells but is downregulated in aTreg cells, and upon inflammation. BACH2 binds to AP-1 sites within Treg genomes and its high expression within rTreg cells functions to restrain their TCR-driven activation and differentiation into aTreg cells. As a consequence, cell-autonomous BACH2 expression is required following Treg lineage commitment for the functional quiescence and long-term maintenance of Treg cell populations and for immune homeostasis. This SuperSeries is composed of the SubSeries listed below.

2020-05-12 | GSE128176 | 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