GEO DataSets

(Submitter supplied) T-cell acute lymphoblastic leukemia (T-ALL) is an immature hematopoietic malignancy driven mainly by oncogenic activation of NOTCH1 signaling. In this study we used a mouse model of T-ALL through the overexpression of the intarcellular transcriptionally active part of Notch1 (N1-IC). This model faithfully recapitulates the major characteristics of the human disease. Comparison of the leukemic cells from peripheral tumors(thymoma) of this mouse model to normal thymic cells Double Positive (DP) for the markers CD4 and CD8 that express very low levels of Notch1 showed major expression changes in pathways controlling the transition from physiology to disease. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS4303

Platform:

GPL1261

4 Samples

Download data: CEL

(Submitter supplied) T-cell acute lymphoblastic leukemia (T-ALL) is an immature hematopoietic malignancy driven mainly by oncogenic activation of NOTCH1 signaling. In this study we used a mouse model of T-ALL through the overexpression of the intarcellular transcriptionally active part of Notch1 (N1-IC). This model faithfully recapitulates the major characteristics of the human disease. Comparison of the leukemic cells from peripheral tumors(thymoma) of this mouse model to normal thymic cells Double Positive (DP) for the markers CD4 and CD8 that express very low levels of Notch1 showed major expression changes (please see GSE34554) in pathways controlling the transition from physiology to disease. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL9250

18 Samples

Download data: BED

Analysis of DP (CD4+/8+) cells from an intracellular Notch1 (Notch1-IC)-induced T-ALL model that recapitulates most features of human T-ALL. T-ALL malignancy is driven by oncogenic activation of NOTCH1 signaling. Results provide insight into the molecular basis of Notch1-driven leukemogenesis.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 2 tissue sets

Platform:

GPL1261

Series:

GSE34554

4 Samples

Download data: CEL

(Submitter supplied) RNA sequencing of human leukemia

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11154

12 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by array; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL13112 GPL1261

23 Samples

Download data: CEL, WIG

(Submitter supplied) Chromatin immunoprecipitation (ChIP) for H3K27me3 followed by Solexa sequencing in WT and Ezh2-null leukemic cells from primary and secondary recipients.

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13112

4 Samples

Download data: WIG

(Submitter supplied) We evaluated gene expression changes in secondary recipient murine leukemia caused by retroviral overexpression of MLL-AF9. We compared wild-type (WT) leukemia cells with mutant leukemia cells after cre-mediated inactivation of a homozygous conditional allele for Ezh2, a component of the Polycomb Repressive Complex2.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

9 Samples

Download data: CEL, TXT

(Submitter supplied) We evaluated gene expression changes in murine leukemia caused by retroviral overexpression of MLL-AF9. We compared wild-type (WT) leukemia cells with mutant leukemia cells after cre-mediated inactivation of homozygous conditional alleles for Ezh2 or Eed, both of which are components of the Polycomb Repressive Complex2.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

10 Samples

Download data: CEL, TXT

(Submitter supplied) We demonstrated that 3-Deazaneplanocin A (DZNep), a histone methyltransferase inhibitor, induce robust apoptosis in AML cells through increased ROS production and ER stress. We identified a core gene signature including TXNIP, a major redox control molecule which is crucial in DZNep-induced apoptosis.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL6244

4 Samples

Download data: CEL

(Submitter supplied) Loss-of-function mutations in EZH2 are associated with poor outcomes in patients with early T cell precursor ALL (ETP-ALL). To understand how EZH2 insufficiency is involved in the pathogenesis of ETP-ALL, we generated mice compound for both Ezh2 and Trp53 conditional deletions.

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

14 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13112

5 Samples

Download data: GFF, TXT

(Submitter supplied) Ezh2 and H3K27me3 binding sites in E12.5 heart apex

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13112

3 Samples

Download data: GFF, TXT

(Submitter supplied) Congenital heart disease is among the most frequent major birth defects. Epigenetic marks are crucial for organogenesis, but their role in heart development is poorly understood. Polycomb Repressive Complex 2 (PRC2) trimethylates histone H3 at lysine 27, establishing H3K27me3 repressive epigenetic marks that promote tissue-specific differentiation by silencing ectopic gene programs. We studied the function of the catalytic subunit of PRC2, EZH2, in murine heart development. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

2 Samples

Download data: TXT

(Submitter supplied) The Polycomb group (PcG) proteins form chromatin-modifying complexes that are essential for embryonic development and stem cell renewal and are commonly deregulated in cancer. Here, we identify their target genes using genome-wide location analysis in human embryonic fibroblasts. We find that Polycomb-Repressive Complex 1 (PRC1), PRC2, and tri-methylated histone H3K27 co-occupy >1000 silenced genes with a strong functional bias for embryonic development and cell fate decisions. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS2445

Platform:

GPL96

15 Samples

Download data: CEL

Analysis of embryonic fibroblasts depleted of the polycomb group (PcG) proteins EZH2, EED, SUZ12, or BMI-1. PcG proteins form complexes that regulate the expression of homeotic genes during development. Results provide insight into the mechanisms employed by PcGs to control development.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 5 protocol sets

Platform:

GPL96

Series:

GSE6015

15 Samples

Download data: CEL

(Submitter supplied) The polycomb group (PcG) proteins function in gene silencing through histone modifications. They form chromatin-associated multiprotein complexes, termed polycomb repressive complex (PRC) 1 and PRC2. These two complexes work in a coordinated manner in the maintenance of cellular memories through transcriptional repression of target genes. EZH2 is a catalytic component of PRC2 and trimethylates histone H3 at lysine 27 to transcriptionally repress the target genes. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10333

4 Samples

Download data: TXT

(Submitter supplied) Comparison of Ezh2 and Ezh1 promoter binding in F9 mouse teratoma cell line.

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL4129 GPL4128

8 Samples

Download data: TXT

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by array; Genome binding/occupancy profiling by genome tiling array

Platforms:

GPL8321 GPL5811

28 Samples

Download data: BAR, BED, CEL

(Submitter supplied) Epigenetic alterations have been increasingly implicated in oncogenesis. Analysis of Drosophila mutants suggests that Polycomb and SWI/SNF complexes can serve antagonistic developmental roles. However, the relevance of this relationship to human disease is unclear. Here we have investigated functional relationships between these epigenetic regulators in oncogenic transformation. Mechanistically, we show that loss of the SNF5 tumor suppressor leads to elevated expression of the Polycomb gene EZH2 and that Polycomb targets are broadly H3K27-trimethylated and repressed in SNF5-deficient fibroblasts and cancers. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL5811

5 Samples

Download data: BAR, BED, CEL

(Submitter supplied) Epigenetic alterations have been increasingly implicated in oncogenesis. Analysis of Drosophila mutants suggests that Polycomb and SWI/SNF complexes can serve antagonistic developmental roles. However, the relevance of this relationship to human disease is unclear. Here we have investigated functional relationships between these epigenetic regulators in oncogenic transformation. Mechanistically, we show that loss of the SNF5 tumor suppressor leads to elevated expression of the Polycomb gene EZH2 and that Polycomb targets are broadly H3K27-trimethylated and repressed in SNF5-deficient fibroblasts and cancers. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL8321

23 Samples

Download data: CEL