GEO DataSets

(Submitter supplied) RNA-seq was performed in human Ph+ pre-B ALL cells that harbor a deletion of the Ikaros DNA binding domain (Ik6) after doxycycline induction of exogenous expression of wild-type Ikaros (Ik1) or control empty vector over 0, 12, 24 and 48 hours. Biological replicates (n=2) using independent cultures and inductions were performed.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11154

16 Samples

Download data: TXT

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

Organism:

Homo sapiens

Type:

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

Platform:

GPL11154

28 Samples

Download data: BED, BEDGRAPH, BIGWIG

(Submitter supplied) Using patient-derived Ph+ pre-B ALL cells that harbor deletions of the IKZF1 DNA binding domain (Ik6), we performed ATAC-sequencing in cells that inducibly express wild-type Ikaros (Ik1) or an empty vector control.

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL11154

2 Samples

Download data: BEDGRAPH

(Submitter supplied) ChIP-seq was performed in patient-derived BCR-ABL1+ (Ph+) pre-B ALL cells that harbor heterozygote deletions of the IKZF1 DNA binding domain (Ik6), using cells that inducibly express wild-type Ikaros (Ik1) or an empty vector control.

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL11154

10 Samples

Download data: BED, BIGWIG

(Submitter supplied) IKAROS is an important tumor suppressor in human pre-B ALL and is mutated or deleted in a high percentage of human BCR-ABL1+ (Ph+) pre-B ALL. We here report the genome-wide binding of IKAROS in two independent patient-derived BCR-ABL1+ (Ph+) pre-B ALL xenograft cells that express wild type full-length IKAROS.

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL11154

8 Samples

Download data: BEDGRAPH, TXT

(Submitter supplied) Deletions within the human IKZF1 gene, which encodes Ikaros, a zinc finger transcription factor critical for lymphopoiesis, appear to be the most prominent recurring lesion in human BCR-ABL1+ (Ph+) B-ALL. Furthermore, IKZF1 mutations correlate with poor prognosis of progenitor B-ALL, further strengthening the notion that IKZF1 is a critical tumor suppressor gene in human B-lineage malignancies. To better understand the relationship between Ikzf1 mutations, BCR-ABL, and B-lineage leukemia, we examined the effect of two newly generated Ikzf1 germline mutation on BCR-ABL-induced proliferation and leukemogenesis in vitro and in vivo. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

6 Samples

Download data: BIGWIG, TXT

(Submitter supplied) To examine Ikaros tumor suppressor mechanisms, we have utilized inducible RNAi to dynamically restore endogenous Ikaros expression in BCR-ABL1+ B-ALL driven by its knockdown (Ikaros knockdown), and compared these tumors to tumors driven by BCR-ABL1 alone (control). Restoration of Ikaros causes rapid regression of tumor cells in vivo, significantly prolonging tumor transplant recipient survival. Using both transgenic and retroviral approaches, we conducted expression analysis of B-ALL by RNA-Seq and have identified a series of Ikaros-regulated genes within established tumor cell in vivo. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL19057 GPL13112

31 Samples

Download data: TXT

(Submitter supplied) BCR-ABL1 lymphoblastic leukaemia is characterized by the deletion of Ikaros. The Philadelphia chromosome, encoding BCR-ABL1, is the defining lesion of chronic myelogenous leukemia (CML) and a subset of acute lymphoblastic leukemia (ALL) cases. To define oncogenic lesions that cooperate with BCR-ABL1 to induce ALL, we performed genome-wide analysis of leukemic samples from 23 CML cases and 304 ALL cases, including 43 BCR-ABL1 B-ALL cases. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array; SNP genotyping by SNP array

4 related Platforms

1496 Samples

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(Submitter supplied) Copy number and LOH analysis was performed for 36 acute leukemia cell lines. All cases were genotyped with Affymetrix 250k Sty and Nsp arrays. Keywords: Acute leukemia, BCR-ABL1, cell lines, copy number analysis, loss-of-heterozygosity, genomics *** Due to privacy concerns, the primary SNP array data is no longer available with unrestricted access. Individuals wishing to obtain this data for research purposes may request access using the Web links below. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array; SNP genotyping by SNP array

Platforms:

GPL3718 GPL3720

72 Samples

Download data

(Submitter supplied) 250k Sty, 250k Nsp, 250k Hind and 250k Xba Affymetrix SNP arrays for 50 leukemia remission samples used as controls for copy number analysis for GSE9109 and GSE9112. Keywords: Acute leukemia, BCR-ABL1, chronic myeloid leukemia, copy number analysis, loss-of-heterozygosity, genomics *** Due to privacy concerns, the primary SNP array data is no longer available with unrestricted access. Individuals wishing to obtain this data for research purposes may request access using the Web links below. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array; SNP genotyping by SNP array

4 related Platforms

200 Samples

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(Submitter supplied) Copy number and LOH analysis was performed for 56 chronic myeloid leukemia cases obtained from 23 CML cases obtained atchronic phase, accelerated phase, blast crisis, or remission. All caseswere genotyped with Affymetrix 250k Sty and Nsp arrays. Keywords: Acute leukemia, BCR-ABL1, chronic myeloid leukemia, copy number analysis, loss-of-heterozygosity, genomics *** Due to privacy concerns, the primary SNP array data is no longer available with unrestricted access. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array; SNP genotyping by SNP array

Platforms:

GPL3720 GPL3718

112 Samples

Download data

(Submitter supplied) Copy number and LOH analysis was performed for 304 casesof B-progenitor and T-lineage acute lymphoblastic leukemia. All caseswere genotyped with Affymetrix 250k Sty and Nsp arrays. 252 cases werealso genotyped with Hind and Xba arrays. Keywords: Acute leukemia, BCR-ABL1, copy number analysis, loss-of-heterozygosity, genomics *** Due to privacy concerns, the primary SNP array data is no longer available with unrestricted access. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array; SNP genotyping by SNP array

4 related Platforms

1112 Samples

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(Submitter supplied) Precursor B-lineage acute lymphoblastic leukemia (pre-B ALL) can be subdivided into different categories based on genetic abnormalities. One type of pre-B ALL is characterized by the presence of the Philadelphia (Ph) chromosome, the derivative chromosome 22 that is one product of a reciprocal translocation between chromosomes 22 and 9. The 22/9 translocation fuses the 5’ part of the BCR gene to the 3’ end of the c-ABL gene. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

12 Samples

Download data: CEL

(Submitter supplied) Alterations of IKZF1, encoding the lymphoid transcription factor IKAROS, are a hallmark of high risk acute lymphoblastic leukemia (ALL), however the role of IKZF1 alterations in ALL pathogenesis is poorly understood. Here we show that in mouse models of BCR-ABL1 leukemia, Ikzf1 and Arf alterations synergistically promote the development of an aggressive lymphoid leukemia. Ikzf1 alterations were associated with acquisition of stem cell-like features, including self-renewal and increased bone marrow stromal adhesion. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

37 Samples

Download data: TXT

(Submitter supplied) Alterations of IKZF1, encoding the lymphoid transcription factor IKAROS, are a hallmark of high risk acute lymphoblastic leukemia (ALL), however the role of IKZF1 alterations in ALL pathogenesis is poorly understood. Here we show that in mouse models of BCR-ABL1 leukemia, Ikzf1 and Arf alterations synergistically promote the development of an aggressive lymphoid leukemia. Ikzf1 alterations were associated with acquisition of stem cell-like features, including self-renewal and increased bone marrow stromal adhesion. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by genome tiling array

Platform:

GPL18270

10 Samples

Download data: TXT

(Submitter supplied) Analysis of lineage depleted human cord blood cells sequentially transduced with retro- (BCR-ABL1) and lentiviral (Ik6) vectors and the corresponding controls. Results provide important informations on the collaboration of BCR-ABL1 and Ik6 in human hematopoietic cells.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

16 Samples

Download data: TXT

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

Organism:

Homo sapiens

Type:

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

Platforms:

GPL15143 GPL9115 GPL11154

13 Samples

Download data: COD, PAIR

(Submitter supplied) Ikaros functions as a master regulator of lymphocyte differentiation and a tumor suppressor. Ikaros binds DNA and regulates gene expression by chromatin remodeling. Mechanisms of Ikaros-mediated tumor suppression are unknown. Here we examined genome-wide occupancy of Ikaros and histone deacetylase 1 (HDAC1) and Histone midificaition markers in human leukemia, and found that the Ikaros and HDAC1 showed similar binding partern and HDAC1–DNA interactions are associated with the presence of bivalent chromatin, and the recruitment of HDAC1 by Ikaros is associated with bivalent chromatin at Ikaros target genes.

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL11154 GPL9115

10 Samples

Download data: COD

(Submitter supplied) Identify the expression intensity for all genes in Nalm6 cells and all the genes are divided into 4 equal groups with group 1 containing the 25% of genes that were expressed at the highest levels, and group 4 containing the 25% of genes that were expressed at the lowest levels.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL15143

3 Samples

Download data: PAIR

(Submitter supplied) We studied a cohort of 221 high-risk pediatric B-progenitor ALL patients that excluded known high risk ALL subtypes (BCR-ABL1 and infant ALL), using Affymetrix single nucleotide polymorphism microarrays, gene expression profiling and candidate gene resequencing. A CNA poor outcome predictor was identified using a semi-supervised principal components approach, and tested in an independent validation cohort of 258 pediatric B-progenitor ALL cases. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL96

175 Samples

Download data: CEL