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Ikaros target genes in pre-B cell line

ABSTRACT: Ikaros target genes in pre-B cell line

PROVIDER: PRJNA471998 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR7182270.fastq.gz	Fastqsanger.gz
	SRR7182280.fastq.gz	Fastqsanger.gz
	SRR7182290.fastq.gz	Fastqsanger.gz
	SRR7182271.fastq.gz	Fastqsanger.gz
	SRR7182281.fastq.gz	Fastqsanger.gz

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Ikaros target genes in pre-B cell line

Project description:We showed that the Ikaros transcription factor is essential for the pre-B cell differentiation. We analyzed the transcriptome of a Ikaros deficient pre-B cell line which was reconstituted with an inducible Ikaros-ER fusion protein. To determine the direct Ikaros targets, we did ChIP-sequencing on chromatin from this pre-B cell line, as cell numbers in mice were too limiting for these studies.

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Ikaros target genes in the mouse pre-B cell line B3

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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

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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).

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Gene expression in mouse pre-B cells transduced with Ikaros.

Project description:Ikaros family DNA binding proteins are critical regulators of B cell development. To identify Ikaros-regulated genes in pre-B cells we performed gene expression studies at enhanced temporal resolution. We used retroviral gene transfer to express Ikaros proteins in the pre-B cell line B3. Total RNA from 2 biological replicates of B3 cells transduced with wild type Ikaros (HA-Ikaros-IRES-GFP) and DNA binding-deficient Ikaros mutant 159A (HA-159A Ikaros-IRES-GFP) was isolated 48h after infection. To increase the temporal resolution of Ikaros-regulated gene expression we transduced B3 cells with inducible Ikaros (HA-Ikaros-ERt2-IRES-GFP) and isolated total RNA from 3 biological replicates after 2 h and 6 h of exposure to 4-hydroxytamoxifen. Vector transduced B3 cells (ERt2-IRES-GFP) treated with 4-hydroxytamoxifen were used as controls.

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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. We used expression of an inducible ersion of the Ikaros protein in an Ikaros-deficient cell line to identify Ikaros-regulated genes

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Ikaros/STAT5 DNA binding competition in pre-B cell line [ChIP-seq]

Project description:Ikaros was found to antagonize the transcriptional program of IL-7 activated pathways during pre-B cell differentiation. We analyzed the genomic distribution of Ikaros and STAT5 (downstream effector of IL-7; in the presence or absence of Ikaros) in pre-B cells by ChIP-Seq.

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Genome-wide identification of Ikaros binding sites in primary pre-B cells

Project description:Ikaros DNA binding proteins are important regulators of haematopoiesis and genetic deletion of Ikaros results in severe developmental disturbances, including delayed thymocyte differentiation and an early and complete block in B cell development. Although Ikaros ChIP-seq data are available for mouse thymocytes and human haematopoietic progenitors, it has not been achieved in B cell progenitors. The goal of this study was to identify Ikaros binding sites in pre-B cells to define Ikaros target genes which could explain the essential role of Ikaros proteins in B cell differentiation. We carried out chromatin immunoprecipitation and high throughput sequencing (ChIP-seq) with antibodies to the C-terminus of endogenous Ikaros in primary pre-B cells isolated from mouse fetal livers.

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Genome-wide identification of Ikaros binding sites in pre-B cells

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Genome-wide identification of Ikaros binding sites in pre-B cells

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