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Genome-wide maps of Egr2 transcription factor binding sites in NKT and anti TCRb injected thymocytes.

ABSTRACT: We report the application of single-molecule-based sequencing technology for mapping the Egr2 transcriptional program in developing thymic NKT. We found that Egr2 controls the induction of genes required for NKT development.

ORGANISM(S): Mus musculus

PROVIDER: GSE34254 | GEO | 2012/02/06

SECONDARY ACCESSION(S): PRJNA149755

REPOSITORIES: GEO

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Genome-wide maps of Egr2 transcription factor binding sites in NKT and anti TCRb injected thymocytes.

Project description:We report the application of single-molecule-based sequencing technology for mapping the Egr2 transcriptional program in developing thymic NKT. We found that Egr2 controls the induction of genes required for NKT development. Examination of developing NKT cells and thymocytes receiving a strong TCR signal in vivo by injecting 500ug anti-TCRb antibody.

2012-02-06 | E-GEOD-34254 | biostudies-arrayexpress

Genome-wide maps of EGR2 transcription factor binding sites in T cell anergy

Project description:We report the application of sequencing technology for mapping the EGR2 transcriptional program in T cell anergy Examination of Egr2 genomic binding sites in T cells following overnight treatment with immobilized anti-CD3 mAb (1ug/ml)

2013-04-21 | E-GEOD-46241 | biostudies-arrayexpress

Gene expression comparison of wild-type and IL15ko thymic NKT cells

Project description:Semi-invariant natural killer T (NKT) cells are thymus-derived innate lymphocytes that modulate microbial and tumour immunity as well as autoimmune diseases. These immunoregulatory properties of NKT cells are acquired during their development. Much has been learnt regarding the molecular and cellular cues that promote NKT cell development, yet how these cells are maintained in the thymus and the periphery and how they acquire functional competence are incompletely understood. We found that IL-15 induced several Bcl-2 family survival factors in thymic and splenic NKT cells in vitro. Yet, IL15-mediated thymic and peripheral NKT cell survival critically depended on Bcl-xL expression. Additionally, IL-15 regulated thymic developmental stage 2 (ST2) to ST3 lineage progression and terminal NKT cell differentiation. Global gene expression analyses and validation revealed that IL-15 regulated Tbx21 (T-bet) expression in thymic ST3 NKT cells. The loss of IL15-dependent T-bet expression resulted in poor expression of IFN-γ and several NK cell receptors in NKT cells. Taken together, our findings reveal a critical role for IL-15 in NKT cell survival, which is mediated by Bcl-xL, and effector differentiation, which is regulated by T-bet. Gene expression was measured in NKT cells sorted from pooled thymi of wild-type (3 replicates) or IL-15 deficient (2 replicates) mice.

2011-12-08 | E-GEOD-32568 | biostudies-arrayexpress

RNAseq analysis of mature thymic NKT cells and immature thymic DN1eP cells

Project description:We report the identification of immature thymic CD4(-),CD8(-) double-negative (DN)1e cells with the NKT cell lineage potential. We also analyzed the gene expression profiles of DN1e thymocytes compared with those of mature thymic NKT cell developmental stages termed NKT stage-1, 2, and -3, which are characterized by differential expression levels of NK1.1 and CD44 antigens in C57BL/6 mouse strain. Next generation sequencing of total transcriptomes using total RNA isolated from FACS sorted ex vivo thymic DN1eP (Lin-/CD44+/CD25-/CD24low/CD5+/CD27+/Ly108-/CXCR3+) fraction, and mature thymic alphaGalCer-loaded CD1d dimer+TCRbeta+ NKT cell developmental stage-1 (CD44-/NK1.1-), stage-2 (CD44+/NK1.1-), and stage-3 (CD44+/NK1.1+) cells.

2015-12-31 | E-GEOD-53150 | biostudies-arrayexpress

Gene expression comparison of wild-type and IL15ko thymic NKT cells

2011-12-08 | GSE32568 | GEO

DOCK8 is critical for the survival and function of NKT cells [NKT_CD103+]

Project description:Analysis of DOCK8 deficient animals revealed a novel marker of NKT cell development, the integrin CD103. The role of CD103 was further investigated by RNA microarray comparing CD103 negative versus positive NKT cells. Total RNA was extracted from 3 biological replicates of thymic, CD103positive NKT cells and compared using an Illumina microarray to CD103negative NKT cells.

2013-09-01 | E-GEOD-44815 | biostudies-arrayexpress

Genome-wide maps of EGR2 transcription factor binding sites in T cell anergy

Project description:We report the application of sequencing technology for mapping the EGR2 transcriptional program in T cell anergy

2013-04-21 | GSE46241 | GEO

RNAseq analysis of mature thymic NKT cells and immature thymic DN1eP cells

2015-12-31 | GSE53150 | GEO

DOCK8 is critical for the survival and function of NKT cells [DOCK8_CPM_NKT]

Project description:Analysis of DOCK8 deficient animals revealed a key role for this protein the survival and maintenance of natural killer T cells. This work lead to the identification of genes regulated by the guanine exchange factor, DOCK8. Total RNA was extracted from 3 biological replicates of thymic, DOCK8 deficient NKT cells and compared using an Illumina microarray to WT NKT cells.

2013-09-01 | E-GEOD-44814 | biostudies-arrayexpress

A comparison of the transcriptional profiles of DP CD24highCD44lowNK1.1-CD1d-tet+TCRa+ cells (i.e. very immature NKT cells) with those of more mature NKT cell subsets

Project description:Type 1 NKT cells play a critical role in controlling the strength and character of adaptive and innate immune responses. Their functional characteristics are distinct from conventional T cells, and are induced by a transcriptional program initiated by positive selection on CD4+CD8+ (double positive, DP) thymocytes. Here we examined transcriptional events in four immature thymic NKT cell subsets in a novel Vα14 TCR transgenic strain bearing greatly expanded numbers of CD24+CD44- NKT cells. We used a transcriptional regulatory network approach to map TCR validation to the transition from DP T to DP NKT cells, and positive selection and lineage commitment to the transition from DP NKT to CD4 NKT

2021-12-15 | GSE106720 | GEO

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