Transcriptome analysis of Bcl11b-deficient murine NK cells
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ABSTRACT:
PROVIDER: PRJNA681914 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR13178259.fastq.gz | Fastqsanger.gz | |||
| SRR13178260.fastq.gz | Fastqsanger.gz | |||
| SRR13178261.fastq.gz | Fastqsanger.gz | |||
| SRR13178262.fastq.gz | Fastqsanger.gz | |||
| SRR13178263.fastq.gz | Fastqsanger.gz |
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Project description:Epigenetic landscapes can provide insight into regulation of gene expression and cellular diversity. Here, we examined the transcriptional and epigenetic profiles of seven human blood NK cell populations, including adaptive NK cells. The BCL11B gene, encoding a transcription factor (TF) essential for T cell development and function, was the most extensively regulated, with expression increasing throughout NK cell differentiation. Several Bcl11b-regulated genes associated with T cell-signaling were specifically expressed in adaptive NK cell subsets. Regulatory networks revealed reciprocal regulation at distinct stages of NK cell differentiation, with Bcl11b repressing RUNX2 and ZBTB16 in canonical and adaptive NK cells, respectively. A critical role for Bcl11b in driving NK cell differentiation was corroborated in BCL11B mutated patients and by ectopic Bcl11b expression. Moreover, Bcl11b was required for adaptive NK cell responses in a murine CMV model, supporting expansion of these cells. Together, we define the TF regulatory circuitry of human NK cells and uncover a critical role for Bcl11b in promoting NK cell differentiation and function.
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Project description:Transcriptional profiling of mouse iNKT cells comparing wild type and Bcl11b deficient cell. The mice were treated with 4 μg of α-galactosylceramide. Goal was to determine the effects of transcription factor Bcl11b removal in iNKT cells. Intraperitoneal treatment with 4 μg of α-Galactosylceramide. Two pair of wild type (BCL11b F/F Vα14 transgenic) and Knock out (BCL11b F/F PLZF-Cre Vα14 transgenic)) mice were treated. Lymphocytes from spleen and liver were enriched and stain with PBS-57 Loaded CD1d tetramer. Pure iNKT cells were collected through cell sorter.
2016-08-10 | E-GEOD-73679 | biostudies-arrayexpress
Project description:expression profile in Bcl11b-deficient Treg cells versus wild type Treg cells Treg cells sorted from Bcl11bF/F/Cd4Cre/Foxp3-GFP+ mice and wild type Foxp3-GFP+ mice Treg cells sorted from Bcl11bF/F/Foxp3Cre mice and wild type mice RNA extracted from sorted Bcl11b-deficient Foxp3-GFP Treg cells form Bcl11bF/F/Cd4Cre/Foxp3-GFP+ mice and wild type Foxp3-GFP Treg cells; expression profile by microarray analysis RNA extracted from sorted Bcl11b-deficient Treg cells form Bcl11bF/F/Foxp3Cre mice and wild type Treg cells; expression profile by microarray analysis
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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:B-cell leukemia 11b (BCL11B) is a transcription factor known as an essential regulator of T lymphocytes and neuronal development during embryogenesis. A genome-wide association study (GWAS) showed that a gene desert region downstream of BCL11B, known to function as a BCL11B enhancer, harbors single nucleotide polymorphisms (SNPs) associated with increased arterial stiffness. However, a role for BCL11B in the adult cardiovascular system is unknown. Based on these human findings, we sought to examine the relation between BCL11B and arterial function. Here we report that BCL11B is expressed in the vascular smooth muscle (VSM) where it regulates vascular stiffness. RNA sequencing of aortas from WT and Bcl11b null mice (BSMKO) identified the cyclic guanosine monophosphate (cGMP)-protein kinase G (PKG) as the most significant differentially regulated signaling pathway in BSMKO compared to WT mice. BSMKO aortas showed decreased levels of PKG1, increased levels of Ca++-calmodulin-dependent serine/threonine phosphatase calcineurin (PP2B) and their common phosphorylation target, vasodilator-stimulated phosphoprotein (pVASPS239), a regulator of cytoskeletal actin rearrangements. Decreased pVASPS239 in BSMKO aortas was associated with increased actin polymerization (F/G actin ratio). Functionally, aortic force, stress, wall tension and stiffness, measured ex vivo in organ baths, were increased in BSMKO aortas, and BSMKO mice had increased pulse wave velocity, the in vivo index of arterial stiffness. Despite having no effect on blood pressure or microalbuminuria, increased arterial stiffness in BSMKO mice was associated with increased incidence of cerebral microbleeds compared to age-matched WT littermates. In conclusion, we have identified VSM BCL11B as a crucial regulator of aortic smooth muscle function and a potential therapeutic target for vascular stiffness.
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Project description:Transcriptional profiling of mouse iNKT cells comparing wild type and Bcl11b deficient cell. The mice were treated with 4 μg of α-galactosylceramide. Goal was to determine the effects of transcription factor Bcl11b removal in iNKT 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.
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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.
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