Mapping Bcl11b binding in regulatory T cells
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA494809 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR7968290.fastq.gz | Fastqsanger.gz | |||
| SRR7968291.fastq.gz | Fastqsanger.gz | |||
| SRR7968292.fastq.gz | Fastqsanger.gz | |||
| SRR7968283.fastq.gz | Fastqsanger.gz | |||
| SRR7968293.fastq.gz | Fastqsanger.gz |
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Project description:Mapping Bcl11b binding in human regulatory T cells
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Project description:Mapping Bcl11b binding in human MAIT cells
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Project description:T regulatory (Treg) cells have been studied in depth since their discovery for their potential use in therapies of autoimmune diseases. Treg cells have a suppression program that includes surface molecules CD25 (IL2R), cytotoxic T-lymphocyte associated protein 4 (CTLA4), and glucocorticoid-induced TNFR family (GITR) to limit aberrant and excessive inflammatory immune responses. We have shown that Bcl11b can bind to the CNS2 region in Foxp3 as well as the gene loci of those essential surface molecules for Treg suppression. Furthermore, we have identified a subset of Foxp3-independent genes in Treg cells directly regulated by Bcl11b binding. Bcl11b also directly represses expression of innate molecules such as transcription factors PU.1 and ID2 in Treg cells. Finally, we have also shown that removal of Bcl11b accelerates apoptosis in Treg cells as cleaved caspase 3 levels were significantly elevated in Bcl11b KO Treg cells when compared with WT Treg cells.
2019-08-07 | GSE120873 | GEO
Project description:T regulatory (Treg) cells have been studied in depth since their discovery for their potential use in therapies of autoimmune diseases. Treg cells have a suppression program that includes surface molecules CD25 (IL2R), cytotoxic T-lymphocyte associated protein 4 (CTLA4), and glucocorticoid-induced TNFR family (GITR) to limit aberrant and excessive inflammatory immune responses. We have shown that Bcl11b can bind to the CNS2 region in Foxp3 as well as the gene loci of those essential surface molecules for Treg suppression. Furthermore, we have identified a subset of Foxp3-independent genes in Treg cells directly regulated by Bcl11b binding. Bcl11b also directly represses expression of innate molecules such as transcription factors PU.1 and ID2 in Treg cells. Finally, we have also shown that removal of Bcl11b accelerates apoptosis in Treg cells as cleaved caspase 3 levels were significantly elevated in Bcl11b KO Treg cells when compared with WT Treg cells.
2019-08-07 | GSE120872 | GEO
Project description:Mucosal associated invariant T (MAIT) cells, already differentiated and located at mucosal sites, are critical in the body’s first wave of defenses against invading pathogens. Bcl11b KO MAIT cells fail to be maintained both in the thymus and peripheral organs. Furthermore, MAIT cells fail to fully develop in the thymus without Bcl11b, failing to upregulate RORγt, and that phenotype remains in the lungs and livers of these mice. Bcl11b deletion in MAIT cells causes dramatic shifts in the activation and TH17 programs, due to the binding of Bcl11b in many of those genes, which we have seen in the human MAIT cells. MAIT cells rely on PLZF and RORγt for their development and function, while also heavily relying on Bcl11b. These data show the key interplay of Bcl11b with PLZF and RORγt in a T cell leading to its development and necessary function to protect the body against diseases.
2021-03-22 | GSE145776 | GEO
Project description:Naïve CD4+ T-helper cells differentiate into Th2 effector cells during asthma and helminth (worm) infection. Here, we report that mice lacking the transcription factor Bcl11b in mature CD4+ T-cells are incapable of mounting an effective Th2 response in asthma and worm infection, with a major reduction of Th2 cytokine secretion and GATA3 expression. We found that Bcl11b exerts its role in Th2 differentiation through several avenues: (1) association with intronic regions at the Gata3 locus, sustaining GATA3 expression; (2) binding to and restricting chromatin accessibility at the Il4 silencer, located at hypersensitivity site (HS) IV; and (3) restricting Runx3 expression by association with a regulatory region 5’ of Runx3. Thus, in the absence of Bcl11b, the reduction in GATA3 levels combined with increased Runx3 levels and activity at Il4 HS IV silencer and consequently diminished IL-4 expression. This results in reduced chromatin opening at the Th2 locus control region (LCR), Il13 and Il5 promoters, subsequently preventing expression of Th2 cytokine genes and Th2 differentiation. Our results establish a novel role for Bcl11b in the regulatory loop critical for licensing the Th2 program in vivo.
2018-05-09 | GSE99597 | GEO
Project description:Mapping Bcl11b binding in in vitro differentiated resident memory T cells [ChIP-seq]
| PRJNA773116 | ENA
Project description:The transcription factor (TF) networks that regulate the differentiation of resident versus circulating memory CD8+ T cells are incompletely understood. Here we show that the TF Bcl11b restricts gut resident memory (Trm) cell differentiation, while promoting splenic T central memory (Tcm) and effector memory (Tem) cell differentiation. The reduction of Bcl11b-deficient splenic Tcm and Tem cells was not due to major alterations in their programs, but rather due to the increased homing of their precursors to the small intestine. However, Bcl11b-deficient resident memory precursor cells upregulated residency program, including the TFs Ahr and Prdm1 (encoding Blimp1), and downregulated Tcf7, which restricts the residency program and promotes tissue egress. Bcl11b directly bound at Ahr and Prdm1, as well as at Tcf7 genes. Abrogating Ahr and Prdm1, or restoration of Tcf7 expression in Bcl11b-deficient cells led to partial correction of the excessive resident memory cell differentiation. Functionally, Bcl11b-deficient memory CD8+ T cells had an impaired recall response, but anti-tumor immunity was increased in adoptive cell therapy. Bcl11b also repressed the residency program in human CD8+ T cells and human Bcl11b low tumor-infiltrating lymphocytes showed increased residency gene expression. Thus, Bcl11b plays a critical role in balancing the circulating and tissue residency programs and reveals a potential novel target for cancer immunotherapies.
2023-06-08 | GSE186282 | GEO
Project description:T regulatory (Treg) cells have been studied in depth since their discovery for their potential use in therapies of autoimmune diseases. Treg cells have a suppression program that includes surface molecules CD25 (IL2R), cytotoxic T-lymphocyte associated protein 4 (CTLA4), and glucocorticoid-induced TNFR family (GITR) to limit aberrant and excessive inflammatory immune responses. We have shown that Bcl11b can bind to the CNS2 region in Foxp3 as well as the gene loci of those essential surface molecules for Treg suppression. Furthermore, we have identified a subset of Foxp3-independent genes in Treg cells directly regulated by Bcl11b binding. Bcl11b also directly represses expression of innate molecules such as transcription factors PU.1 and ID2 in Treg cells. Finally, we have also shown that removal of Bcl11b accelerates apoptosis in Treg cells as cleaved caspase 3 levels were significantly elevated in Bcl11b KO Treg cells when compared with WT Treg cells.
2019-08-07 | GSE120874 | GEO
Project description:Bcl11b binding and transcriptome analysis of Bcl11b-deficient MAIT cells at steady state and infection
| PRJNA608197 | ENA