Mapping Bcl11b binding in human MAIT cells
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ABSTRACT:
PROVIDER: PRJNA608199 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR11149251_1.fastq.gz | Fastqsanger.gz | |||
| SRR11149251_2.fastq.gz | Fastqsanger.gz | |||
| SRR11149252_1.fastq.gz | Fastqsanger.gz | |||
| SRR11149252_2.fastq.gz | Fastqsanger.gz |
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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: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 | GSE145777 | 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 | GSE145778 | GEO
Project description:Mapping Bcl11b binding in human regulatory T cells
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Project description:Mapping Bcl11b binding in regulatory T cells
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Project description:Bcl11b binding and transcriptome analysis of Bcl11b-deficient MAIT cells at steady state and infection
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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 | GSE120872 | 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.
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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.
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