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Ikaros responsive genes in the T29 cell line

ABSTRACT: The mouse Ikaros-deficient thymic lymphoma cell line T29 was transduced with an empty retrovirus (MigR1) or a retrovirus expressing an fusion proein between Ikaros1 and the ligand binding domain of the estrogen receptor. Cells trreated with ethanol or 4-hydroxy-tamoxyfen (4OHT) for 24h were profiled. We used expression of an inducible ersion of the Ikaros protein in an Ikaros-deficient cell line to identify Ikaros-regulated genes

ORGANISM(S): Mus musculus

SUBMITTER: Susan Chan

PROVIDER: E-GEOD-46088 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Ikaros responsive genes in the T29 cell line

Project description:The mouse Ikaros-deficient thymic lymphoma cell line T29 was transduced with an empty retrovirus (MigR1) or a retrovirus expressing an fusion proein between Ikaros1 and the ligand binding domain of the estrogen receptor. Cells trreated with ethanol or 4-hydroxy-tamoxyfen (4OHT) for 24h were profiled.

2013-04-17 | GSE46088 | GEO

Notch responsive genes in the T29 cell line

Project description:The mouse Ikaros-deficient thymic lymphoma cell line T29 was transduced with a retrovirus expressing an fusion protein between a dominant-negative form of Mastermind and the ligand binding domain of the estrogen receptor. Cells trreated with Ethanol or 4-hydroxy-tamoxyfen for 24h were profiled. We used expression of an inducible ersion of the dominant negative Mastermind protein in an Ikaros-deficient cell line to identify Notch-regulated genes

2013-04-17 | E-GEOD-46089 | biostudies-arrayexpress

Effect of a gamma secretase inhibitor on the T29 cell line

Project description:The mouse Ikaros-deficient thymic lymphoma cell line T29 was treated with a gamma-secretase inhibitor or vehicle (DMSO) for 36h and subjected to transcriptome analysis. 4 samples

2013-04-17 | E-GEOD-46095 | biostudies-arrayexpress

Mapping of Ikaros and RBPJ binding sites in the mouse T cell leukemia cell line T29

Project description:The transcription factor Ikaros represses Notch signaling. Since Ikaros and Notch treanscriptional mediator RBPJ both recognize sequences that contain the same core TGGGAA motif, it was hypothesized that Ikaros represses Notch signaling by targeting Notch response elements and competing with RBPJ for their binding. Here we used the mouse T-cell leukemia cell line T29 to compare the genomic binding profiles of Ikaros and RBPJ by ChIP-seq. The T29 cell line is derived from a Ikaros-deficient T-cell leukemia (Dumortier et al, MCB 26, 209-220, 2006) and exhibits strong Notch activation. We performed two chip-seq experiments with an anti-RBPJ antibody to map RBPJ binding sites. To map Ikaros binding sites, we engineered a T29-derived cell line that expresses a fusion protein between Ikaros and the ligand binding domain of the estrogen receptor (Ik1-ER) which is activated by addition of 4-hydroxy-tamoxifen (4OHT). We used an anti-Ikaros antibody to map the sites bound by Ik1-ER after treatment of the cells with 4OHT. Sequencing were performed with the Illumina GAII sequencer as as single end 36 base pair reads.

2014-04-02 | E-GEOD-46119 | biostudies-arrayexpress

Notch responsive genes in the T29 cell line

2013-04-17 | GSE46089 | GEO

Identification of genes controlled by Ikaros and IL-7 in the mouse Ikaros-deficient pre-B cell line BH1

Project description:The aim of the experiment was to compare to single and combined effect of Ikaros activation and IL-7 withdrawal in the Ikaros-null pre-B cell line BH1 The mouse BH1 pre-B cell line was transduced with retroviruses encoding Bcl2 and an Ikaros-estrogen receptor fusion protein. Doubly transduced cells were purified by FACS (BH1-Bcl2-Ik1ER). The transcriptome of these cells was analyzed at time 0, and after 6h and 24h of induction of Ikaros activity with 4-hydroxytamoxifen (4OHT) and/or withdrawal of IL-7. Samples from 2 independent experiments were analyzed (exp1 and exp2).

2013-11-30 | E-GEOD-51350 | biostudies-arrayexpress

Gene expression in DN4 thymocytes from mice with an inducible deletion of Ikaros

Project description:The aim of the experiment was to visualize genes under the control of Ikaros during early T cell development. We used mice carrying floxed Ikaros alleles that were crossed with the Rosa26-CreERT2 mice, and which were injected with tamoxifen for 4 days. DN4 thymocytes were sorted from 4 mice (5-6 week-old) which are positive or not for the Rosa26-CreERT2 transgene. DN4 cells were sorted from 2 Ikf/f Rosa26-CreERT2+ mice and 2 Ikf/f mice, which were all treated with tamoxifen for 4 days. Loss of Ikaros was confirmed in sorted cells from the Ikf/f Rosa26-CreERT2+ mice by western blot. Gene expression profiles were determined on total RNA from sorted cells with Affymetrix Mouse Gene arrays.

2013-04-17 | E-GEOD-46093 | biostudies-arrayexpress

Ikaros-induced gene expression chages upon Ikaros re-expression in the ILC87 Ikaros-deficient tumor cell line

Project description:We used microarrays to analyze gene expression changes in the Ikaros null ILC87 T cell tumor line after re-expression of Ikaros. ILC87 cells were transduced to stably express the 4-hydroxytamoxifen-inducible (4OHT) Ikaros1-ER fusion protein. ILC87-Ik1-ER cells were treated with mock (EtOH) or 4OHT for 1 day and the global gene expression changes were assessed by microarray analysis.

2015-11-03 | E-GEOD-72801 | biostudies-arrayexpress

Gene expression in WT and Ikaros-deficient LSK cells

Project description:The Ikaros zink finger transcription factor is a critical regulator of the hematopietic system, and plays an important role in the regulation of the development and function of several blood cell lineages. We used microarrays to characterize how Ikaros deficieny affects global transcription in the hematopoietic stem and progenitor cells from wild-type and Ikaros mutant mice. lin- Sca1+ c-Kit+ (LSK) cells, that contains the hematopoietic stem cells and the multipotent progenitor cells, were sorted by FACS from the bone marrow of 6-7 weeks old WT and IkL/L mutant mice. Total RNA extracted from these cells was subjected to transcriptome analysis.

2015-11-03 | E-GEOD-61147 | biostudies-arrayexpress

Effect of a gamma secretase inhibitor on the T29 cell line

Project description:The mouse Ikaros-deficient thymic lymphoma cell line T29 was treated with a gamma-secretase inhibitor or vehicle (DMSO) for 36h and subjected to transcriptome analysis.

2013-04-17 | GSE46095 | GEO

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