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Runx3 function in IL-2-activated splenic CD8+ T cells

ABSTRACT: CD8+T cells are immune cells that recognize foreign antigens on infected and tumor cells, leading to cytokine-dependent expansion and activation of cytotoxicity towards the targets. To identify Runx3 regulated genes, CD8+ T cells were isolated from spleen of WT and Runx3-/- mice . Six samples (3 WT and 3 Runx3-/-) of CD8+ T cells were separately obtained from individual mice, TCR activated and cultured for 4 days with IL-2.

ORGANISM(S): Mus musculus

SUBMITTER: Joseph Lotem

PROVIDER: E-GEOD-50121 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Runx3-mediated transcriptional program in cytotoxic lymphocytes.

Lotem Joseph J Levanon Ditsa D Negreanu Varda V Leshkowitz Dena D Friedlander Gilgi G Friedlander Gilgi G Groner Yoram Y

PloS one 20131113 11

The transcription factor Runx3 is highly expressed in CD8(+) T and NK cytotoxic lymphocytes and is required for their effective activation and proliferation but molecular insights into the transcription program regulated by Runx3 in these cells are still missing. Using Runx3-ChIP-seq and transcriptome analysis of wild type vs. Runx3(-/-) primary cells we have now identified Runx3-regulated genes in the two cell types at both resting and IL-2-activated states. Runx3-bound genomic regions in both ...[more]

PMID: 24236182

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Genome-wide maps of Runx3 bound regions in splenic IL-2-activated CD8+ T cells

Project description:ChIP-seq was conducted on isolated splenic WT CD8+ T cells, TCR-activated and cultured with IL-2 using anti-Runx3 antibodies (Ab), anti-H3K4me1 Ab and non-immune serum (NIS) as control. Two biological Runx3 and two NIS IP repeats from TCR-activated and IL-2 cultured splenic CD8+ T cells isolated by positive selection on anti-CD8 magnetic beads.

2013-11-18 | E-GEOD-50128 | biostudies-arrayexpress

Runx3 function in CD8+ splenic T cells

Project description:CD8+T cells are immune cells that recognize foreign antigens on infected and tumor cells, leading to cytokine-dependent expansion and activation of cytotoxicity towards the targets. To identify Runx3 responsive genes, CD8+ T cells were isolated from spleen of WT and Runx3-/- mice . Six samples (3 WT and 3 Runx3-/-) of freshly isolated CD8+ T cells (resting) were separately obtained from individual mice.

2013-11-18 | E-GEOD-50119 | biostudies-arrayexpress

Genome-wide maps of Runx3 bound regions in splenic CD8+ T cells.

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2013-11-18 | E-GEOD-50130 | biostudies-arrayexpress

Genome-wide maps of Runx3 bound regions in IL-2-activated splenic NK cells

Project description:ChIP-seq was conducted using splenic WT NK cells cultured for 7 days with IL-2 using anti-Runx3 antibodies (Ab), anti-H3K4me1 Ab and non-immune serum (NIS) as control. Two biological Runx3, one H3K4me1 and two NIS IP repeats from splenic NK cells isolated from individual mice by negative selection using NK cell isolation kit (R&D) cultured with IL-2.

2013-11-18 | E-GEOD-50129 | biostudies-arrayexpress

The transcription program of Runx3 in natural killer cells and CD8+ T cells

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2013-11-18 | E-GEOD-50131 | biostudies-arrayexpress

EOMES interacts with RUNX3 and BRG1 to promote innate memory cell formation through epigenetic reprogramming

Project description:Memory CD8+ T cells have the ability to provide lifelong immunity against pathogens. Although memory features generally arise after challenge with a foreign antigen, naïve CD8 single positive (SP) thymocytes may acquire phenotypic and functional characteristics of memory cells in response to cytokines such as interleukin-4. This process is associated with the induction of the T-box transcription factor Eomesodermin (EOMES). However, the underlying molecular mechanisms remain ill-defined. Using epigenomic profiling, we show that these innate memory CD8SP cells acquire only a portion of the active enhancer repertoire of conventional memory cells. This reprograming is secondary to EOMES recruitment, mostly to RUNX3-bound enhancers. Furthermore, EOMES is found within chromatin-associated complexes containing BRG1 and promotes the recruitment of this chromatin remodelling factor. Also, the in vivo acquisition of EOMES-dependent program is BRG1-dependent. In conclusion, our results support a strong epigenetic basis for the EOMES-driven establishment of CD8+ T cell innate memory program.

2019-06-06 | PXD014142 | Pride

Genome-wide maps of Runx3 bound regions in splenic NK cells

Project description:ChIP-seq was conducted using freshly isolated (resting) splenic WT NK cells with anti-Runx3 antibody (Ab), anti-H3K4me1 Ab and non-immune serum (NIS) as control. Runx3 and H3K4me1 IP from splenic NK cells isolated by negative selection using NK cell isolation kit (R&D) followed by sorting of NKp46+ cells.

2013-11-18 | E-GEOD-50127 | biostudies-arrayexpress

Genome-wide maps of Runx3 bound regions in CD4 splenic dendritic cells.

Project description:ChIP-seq was conducted using FACS-isolated CD11chiMHCII+CD4+ splenic WT DC and anti-Runx3 antibodies (Ab). Two biological Runx3 IP repeats and two input controls from sorted CD4 DC

2014-06-22 | E-GEOD-48588 | biostudies-arrayexpress

Genome-wide maps of Runx3 bound regions in splenic NK cells activated in vivo with IL-15

Project description:ChIP-seq was conducted using freshly isolated splenic WT NK cells from IL-15/Ra treated mice with anti-Runx3 antibody (Ab) and non-immune serum (NIS) as control. Runx3 and NIS IP from splenic NK cells of IL-15/Ra treated WT mice, isolated by negative selection using NK cell isolation kit (R&D) followed by sorting of NKp46+ cells.

2014-01-22 | E-GEOD-50126 | biostudies-arrayexpress

RUNX3 Facilitates Growth of Ewing Sarcoma Cells

Project description:Ewing sarcoma is an aggressive pediatric small round cell tumor that predominantly occurs in bone. Approximately 85% of Ewing sarcomas harbor the EWS/FLI fusion protein, which arises from a chromosomal translocation, t(11:22)(q24:q12). EWS/FLI interacts with numerous lineage-essential transcription factors to maintain mesenchymal progenitors in an undifferentiated state. We previously showed that EWS/FLI binds the osteogenic transcription factor RUNX2 and prevents osteoblast differentiation. In this study, we investigated the role of another Runt-domain protein, RUNX3, in Ewing sarcoma. RUNX3 participates in mesenchymal-derived bone formation and is a context dependent tumor suppressor and oncogene. RUNX3 was detected in all Ewing sarcoma cells examined, whereas RUNX2 was detected in only 73% of specimens. Like RUNX2, RUNX3 binds to EWS/FLI via its Runt domain. EWS/FLI prevented RUNX3 from activating the transcription of a RUNX-responsive reporter, p6OSE2. Stable suppression of RUNX3 expression in the Ewing sarcoma cell line A673 delayed colony growth in anchorage independent soft agar assays and reversed expression of EWS/FLI-responsive genes. These results demonstrate an important role for RUNX3 in Ewing sarcoma. RNA-seq to compare transcriptiome of control A673 ewing sarcoma cells stably expression a non-target or RUNX3 shRNA

2014-05-01 | E-GEOD-56900 | biostudies-arrayexpress

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