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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Transcription profiling of mouse T-cells from wildtype and Gfi1 knockout mice

ABSTRACT: This SuperSeries is composed of the following subset Series:; GSE4938: murine CD4+ and CD8+ T-cells from wildtype and Gfi knockout cells; GSE4940: murine T-cells from wildtype and Gfi1 knockout mice activated by anti-CD3 plus anti-CD28 for 0 to 24h Experiment Overall Design: Refer to individual Series

ORGANISM(S): Mus musculus

SUBMITTER: Ludger Klein-Hitpass

PROVIDER: E-GEOD-4950 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Differential impact of the transcriptional repressor Gfi1 on mature CD4+ and CD8+ T lymphocyte function.

Pargmann Denise D Yücel Raif R Kosan Christian C Saba Ingrid I Klein-Hitpass Ludger L Schimmer Simone S Heyd Florian F Dittmer Ulf U Möröy Tarik T

European journal of immunology 20071201 12

The transcriptional repressor Gfi1 is a nuclear zinc-finger protein that is expressed in T cell precursors in the thymus, but is down-regulated in mature, resting T cells. Gfi1 expression rises transiently to levels seen in thymocytes upon antigenic activation. We show here that lack of Gfi1 causes delayed cell cycle entry and apoptosis after antigenic stimulation in both mature CD4+ and CD8+ T cells ex vivo. DNA micro-array analysis demonstrated that this correlated with an up-regulation of the ...[more]

PMID: 18034420

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Transcription profiling of mouse T-cells from wildtype and Gfi1 knockout mice activated by anti-CD3 plus anti-CD28 for 0 to 24h

Project description:To compare the transcriptomes of T-cells from Gfi1-knockout cells with wildtype cells, spleenocytes from wildtype and Gfi-knockout C57Bl/6 mice were isolated using panT-cell kit in an AutoMACS device (Miltenyi). Cells were cultured with anti-CD3 plus anti-CD28 antibodies (2 Âµg antibody/ml) for the indicated time period. Total RNAs was isolated and subjected to microarray analysis on Affymetrix MOE430A_2.0 arrays. Experiment Overall Design: 8 samples, 1 replicate per group

2008-10-18 | E-GEOD-4940 | biostudies-arrayexpress

Transcription profiling of naive CD4+ and CD8+ T-cells from Gfi1-knockout and wild type mice

Project description:to compare the transcriptomes of naÃ¯ve CD4+ and CD8+ T-cells from Gfi1-knockout cells with wildtype cells, spleenocytes from wildtype and Gfi-knockout C57Bl/6 mice were isolated, stained with CD44, CD4 and CD8 antibodies and separated by using a FACS Diva (Becton Dickinson). Total RNAs isolated from 2 mice each (approximately 2xE06 cells) were pooled and subjected to microarray analysis on Affymetrix MOE430A_2.0 arrays Experiment Overall Design: 4 samples, 1 replicate per group

2008-10-17 | E-GEOD-4938 | biostudies-arrayexpress

Transcription profiling of mouse CD8+ T cells from wild type and Elf4-/- mice left untreated or activated in vitro by culturing on anti-CD3 coated plates and anti-CD28 in media

Project description:Transcription factors that regulate quiescence, proliferation, and homing of lymphocytes are critical for effective immune system function. In the present study, we demonstrated that the transcription factor ELF4 directly activates the tumor suppressor KLF4 downstream of T cell receptor (TCR) signaling to induce cell cycle arrest in naÃ¯ve CD8+ T cells. Elf4- and Klf4-deficient mice accumulated CD8+CD44hi T cells during steady-state conditions and generated more memory T cells after immunization. The homeostatic expansion of CD8+CD44hi T cells in Elf4-null mice resulted in a redistribution of cells to non-lymphoid tissue due to reduced expression of the transcription factor KLF2, and the surface proteins CCR7 and CD62L. This work describes the combinatorial role of lymphocyte-intrinsic factors in the control of T cell homeostasis, activation and homing. Experiment Overall Design: CD8 T cells were purified from spleen of wild type and Elf4-/- mice and CD8 T cells were left untreated or activated in vitro by culturing on anti-CD3 coated plates and anti-CD28 in media (RPMI 10% FBS supplemented with 5% T-stim) for 3.5 days. Experiment Overall Design: RNAs isolated from wild type and Elf4 -/- CD8+ T cells were used in Affimetrix oligonucleotide arrays either untreated or after 3.5 days of activation.

2009-03-28 | E-GEOD-15324 | biostudies-arrayexpress

Gene expression analysis of cMyc-deficient CD8 T cells retrovirally overexpressing cMyc or AP4

Project description:To determine functional overlap between cMyc and AP4 in CD8+ T cell priming, we retrovirally expressed cMyc or AP4 in cMyc-deficient CD8+ T cells and examined gene expression after activation. Naive CD8+ T cells from Myc conditional knockout mice with a tamoxifen inducible Cre transgene were retrovirally transduced with Myc or AP4 followed by a treatment with 4-hydroxytamoxifen in the presence of IL-7 for 2 days. RNA was harvested 48 hours after restimulation of transduced cells with anti-CD3 antibody and gene expression was compared by microarray. CD8+ T cells from littermate wildtype mice that were transduced with an empty retrovirus were used as control.

2014-07-13 | E-GEOD-58079 | biostudies-arrayexpress

Transcription profiling of mouse natural and induced regulatory T cells

Project description:The gene expression profile of peripheral Foxp3+ natural regulatory T cells isolated from Foxp3/EGFP bicistronic mice was compared to that of in vitro-induced regulatory T cells and to CD4+ conventional (Foxp3-) T cells. The role of the regulatory T cell transcription factor Foxp3 in shaping the transcriptosomes of natural and induced regulatory T cells was analyzed using mice expressing a mutant FOXP3-EGFP fusion protein (Foxp3deltaEGFP). We used gene expression microarrays to examine the transcriptional programs of natural and induced regulatory T cells and the function of Foxp3 in organizing the transcriptosomes of the respective cell type Experiment Overall Design: Conventional T cells and natural and induced regulatory T cells were derived from Foxp3/EGFP bicistronic mice and analyzed for their gene expression profile. Conventional T cells, regulatory T cell precursors (CD4+Foxp3deltaEGFP+) and induced regulatory T cell precursors (CD4+Foxp3deltaEGFP+) cells were deriv ed from Foxp3deltaEGFP mice

2009-03-07 | E-GEOD-14415 | biostudies-arrayexpress

Transcription profiling of primary CD8+ T cell activation

Project description:Little is known about the global transcriptional program underlying CD8+ T-cell activation. Using DNA microarrays and Q-RT-PCR, we examined the transcriptional profile of human CD8+ T-cell activation. The goal of this study was to identify genes involved in the various facets of human CD8+ T-cell activation. Experiment Overall Design: CD8+ T cells isolated from peripheral blood were cultured with CD3, CD28, with or without IL-2 to induce T-cell activation. At each timepoint, cells were harvested and frozen for RNA isolation. Three biological replicate experiments were analyzed and approximately one-half of the samples from each experiment were technically replicated. Hybridizations were performed in a reference design with all samples labeled with Cy3 and a reference thymus total RNA labeled with Cy5.

2008-06-15 | E-GEOD-7572 | biostudies-arrayexpress

Transcription profiling of human primary CD4+ T cell activation, time series

Project description:Little is known about the global transcriptional program underlying CD4+ T-cell activation. Using DNA microarrays and Q-RT-PCR, we examined the transcriptional profile of human CD4+ T-cell activation. The goal of this study was to identify genes involved in the various facets of human CD4+ T-cell activation. Experiment Overall Design: CD4+ T cells isolated from peripheral blood were cultured with CD3, CD28, with or without IL-2 to induce T-cell activation. At each timepoint, cells were harvested and frozen for RNA isolation. Three biological replicate experiments were analyzed and approximately one-half of the samples from each experiment were technically replicated. Hybridizations were performed in a reference design with all samples labeled with Cy3 and a reference thymus total RNA labeled with Cy5.

2008-06-15 | E-GEOD-7571 | biostudies-arrayexpress

Transcription profiling of human primary T cell culture and T cell response to oxidative stress

Project description:Little is known about the global transcriptional program underlying T-cell activation and T-cell response to oxidative stress. Using DNA microarrays and Q-RT-PCR, we examined the transcriptional profile of human T-cell activation and T-cell response to H2O2 stress. The goal of this study was to identify genes involved in the various facets of human T-cell activation and T-cell response to H2O2 stress. Experiment Overall Design: T cells isolated from peripheral blood were cultured with CD3, CD28, and IL-2 to induce T-cell activaiton. Samples were splited into two parts before the cutlure started, one treated with 25 uM H2O2 for 10 minutes, the other intact. At each timepoint, cells were harvested and frozen for RNA isolation. Three biological replicate experiments were analyzed and approximately one-half of the samples from each experiment were technically replicated. Hybridizations were performed in a reference design with all samples labeled with Cy3 and a reference thymus total RNA labeled with Cy5.

2008-06-15 | E-GEOD-6607 | biostudies-arrayexpress

Activated T cell gene expression profile associated with Psoriasis

Project description:Psoriasis is a Tcell-mediated disease characterized by the chronic inflammation of skin. Gene expression analyses on skin biopsies and freshly isolated PBMCs have provided important insights into Psoriasis pathophysiology. In the present study we analyze, for the first time, the gene expression profile of in vitro activated T cells in Psoriasis compared to normal heatlhy controls. T cells from PBMCs isolated from patients and healthy controls were in vitro activated with anti-CD3 and anti-CD28 for 72 hours. After T cell activation, cells were harvested and RNA extracted for microarray analysis.

2013-12-02 | E-GEOD-47598 | biostudies-arrayexpress

Potentiation of regulatory T cell stability and function via a neuropilin-1:semaphorin-4a axis

Project description:Regulatory T cells (Treg) represent a critical immunoregulatory component of the immune system. The signals that maintain Treg stability and potentiate their function remain obscure. Here we show that the immune cell surface ligand semaphorin-4a (Sema4a) Sema treated and NRP1 knock outs were compared to untreated wild type T cell controls

2013-09-06 | E-GEOD-41185 | biostudies-arrayexpress

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