GEO DataSets

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

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL96 GPL97 GPL570

316 Samples

Download data: CEL

(Submitter supplied) Philadelphia-like B-cell precursor acute lymphoblastic leukemia (Ph-like ALL) is characterized by distinct genetic alterations and inferior prognosis in children and younger adults. The purpose of this study was the genetic and clinical characterization of Ph-like ALL in adults. Among 207 adult B-cell precursor ALL patients, 26 (13%) were classified as Ph-like using Affymetrix microarrays. The incidence of this subtype was 25% among 105 B-cell precursor ALL patients negative for BCR-ABL1 and MLL-translocations (B-other). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL97

109 Samples

Download data: CEL

(Submitter supplied) Philadelphia-like B-cell precursor acute lymphoblastic leukemia (Ph-like ALL) is characterized by distinct genetic alterations and inferior prognosis in children and younger adults. The purpose of this study was the genetic and clinical characterization of Ph-like ALL in adults. Among 207 adult B-cell precursor ALL patients, 26 (13%) were classified as Ph-like using Affymetrix microarrays. The incidence of this subtype was 25% among 105 B-cell precursor ALL patients negative for BCR-ABL1 and MLL-translocations (B-other). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL96

109 Samples

Download data: CEL

(Submitter supplied) Philadelphia-like B-cell precursor acute lymphoblastic leukemia (Ph-like ALL) is characterized by distinct genetic alterations and inferior prognosis in children and younger adults. The purpose of this study was the genetic and clinical characterization of Ph-like ALL in adults. Among 207 adult B-cell precursor ALL patients, 26 (13%) were classified as Ph-like using Affymetrix microarrays. The incidence of this subtype was 25% among 105 B-cell precursor ALL patients negative for BCR-ABL1 and MLL-translocations (B-other). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

98 Samples

Download data: CEL

(Submitter supplied) PAPER 1:"Identification of novel subgroups of high-risk pediatric precursor B acute lymphoblastic leukemia (B-ALL) by unsupervised microarray analysis: clinical correlates and therapeutic implications. A Children's Oncology Group (COG) study." ABSTRACT We examined gene expression profiles of pre-treatment specimens from 207 patients from the COG P9906 study to identify signatures of children with high risk B-precursor acute lymphoblastic leukemia (ALL) and to determine whether the resulting clusters are associated with either specific clinical features or treatment response characteristics. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

207 Samples

Download data: CEL, CHP, MSK

(Submitter supplied) To shed light on the molecular bases of B-lineage acute lymphoblastic leukemia lacking known rearrangements (B-NEG ALL) and the differences between children and adults, we analyzed 168 B-NEG ALLs - including children, adolescents/young adults (AYA) and adults by genome-wide technologies, namely Next-generation sequencing and copy number aberration (CNA). Affymetrix SNP array analysis was performed according to the manufacturer's directions on DNA extracted from bone marrow sampled at diagnosis and paired germline DNA extracted from peripheral blood/bone marrow at complete remission or saliva.

Organism:

Homo sapiens

Type:

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

Platform:

GPL6801

25 Samples

Download data: CEL, CHP, TXT

(Submitter supplied) DS-ALL is a highly heterogeneous disease with predominance of an aberrant exp. of CRLF2 cooperating with mutated JAK2 Acute lymphoblastic pediatric leukemia specimens of Down's syndrome are examined for gene expression profiles and specific genetic aberrations. Gene expression profiling and specific genetic variation analysis identify novel pathways involved in DS-ALL pathogenesis.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL96 GPL570

119 Samples

Download data: CEL, PDF

(Submitter supplied) Deregulated expression of the type I cytokine receptor, CRLF2 (CRLF2-d), is observed in 5-15% of B-cell precursor acute lymphoblastic leukaemia (BCP-ALL), is associated with activation of the JAK/STAT pathway and has an inferior outcome compared to those with good risk cytogenetics. We aimed to determine the clinical and genetic landscape of CRLF2-d ALL using genomic approaches including karyotyping, fluorescence in situ hybridisation, whole genome and whole exome sequencing. more...

Organism:

Homo sapiens

Type:

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

Platform:

GPL6801

41 Samples

Download data: CEL, CHP

(Submitter supplied) Deregulated expression of cytokine receptor gene, CRLF2, is involved in lymphoid transformation in B-cell precursor acute lymphoblastic leukemia We report two novel, cryptic chromosomal abnormalities in precursor B-cell acute lymphoblastic leukemia (BCP-ALL): a translocation, either t(X;14)(p22;q32) or t(Y;14)(p11;q32), in 33 patients and an interstitial deletion, either del(X)(p22.33p22.33) or del(Y)(p11.32p11.32), in 64 patients, involving the pseudoautosomal region (PAR1) of the sex chromosomes. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by genome tiling array

Platforms:

GPL8876 GPL4091

16 Samples

Download data: TXT

(Submitter supplied) The EBF1-PDGFRB gene fusion accounts for <1% B-cell precursor acute lymphoblastic leukaemia and occurs within the Philadelphia-like ALL subtype. We performed Affymetrix SNP 6.0 array was undertaken patients who tested positive for EBF1-PDGFRB rearrangement by FISH and/or RT-PCR.

Organism:

Homo sapiens

Type:

Genome variation profiling by SNP array

Platform:

GPL6801

11 Samples

Download data: CEL, CNCHP

(Submitter supplied) B-cell precursor acute lymphoblastic leukemia (BCP-ALL) is a heterogeneous disease that can be subdivided according to primary recurrent genetic abnormalities that are strongly associated with characteristic biological and clinical features. The detection of these abnormalities can facilitate diagnosis, risk stratification, and targeted therapy. We identified an unexpectedly high incidence of fusion genes involving ZNF384 genes, including TCF3-ZNF384, EP300-ZNF384, and CREBBP-ZNF384, in BCP-ALL of our cohort. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

229 Samples

Download data: CEL, CHP

(Submitter supplied) This experiment comprises 283 CEL files generated on the Affymetrix U133 Plus 2.0 gene expression microarray platform, using patient peripheral blood and bone marrow samples from the first cohort of patients accrued to Children's Oncology Group Study AALL0232. No clinical covariate data is provided at this time as the clinical study is not yet published. Researchers who would like to request outcome or other covariate data are asked to contact Dr. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

283 Samples

Download data: CEL

(Submitter supplied) Seventeen T-ALL patients out of 120 (14.2%) presented CRLF2 expression 5 times higher than the median (‘CRLF2-high’) with a significantly inferior 5-y EFS and an increased CIR compared to CRLF2-low patients.GEP of 15 T-ALL patients with (‘CRLF2-high’) were compared to 15 CRLF2-low patients. GSEA identified cell cycle deregulating gene sets.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

30 Samples

Download data: CEL

(Submitter supplied) Chromosomal aneuploidy and translocations are hallmarks of acute lymphoblastic leukemia (ALL), but many patients lack a recurring chromosomal alteration. Here we report a recurring interstitial deletion of the pseudoautosomal region 1 of chromosomes X and Y in B-progenitor ALL that results in the expression of a novel fusion that juxtaposes the first non-coding exon of P2RY8 to the coding region of the CRLF2 (cytokine receptor like factor 2, or thymic stromal lymphopoietin receptor) gene. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by genome tiling array

Platform:

GPL8737

2 Samples

Download data: TXT

(Submitter supplied) We assessed the molecular relationship of IG-MYC rearranged ALL with other ALL subtypes and Burkitt’s lymphoma and describe the genetic and clinical outcomes of IG-MYC rearranged ALL

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL21145

17 Samples

Download data: CSV, IDAT

(Submitter supplied) Long non-coding RNAs (lncRNAs) play important roles in numerous diseases and represent an emerging layer of cancer biology. However, the role that lncRNAs play in the pathogenesis of pediatric B-cell leukemia (B-ALL) with t(12;21) (ETV6-RUNX1) translocation is largely unknown. In this study, we assessed the lncRNA expression profiles of 42 pediatric B-ALL (24 with and 18 without the t(12;21) translocation) and 4 bone marrows from healthy donors. more...

Organism:

Homo sapiens

Type:

Expression profiling by array; Non-coding RNA profiling by array

Platform:

GPL26299

46 Samples

Download data: TXT

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

Organism:

Homo sapiens

Type:

Expression profiling by array; Methylation profiling by genome tiling array

Platforms:

GPL570 GPL13534

1053 Samples

Download data: CEL

(Submitter supplied) We surveyed the DNA methylation levels of 435,941 CpG sites in samples from 764 children at diagnosis of ALL and from 27 children at relapse. This survey uncovered four characteristic methylation signatures. First, compared with control blood cells, the methylomes of ALL cells shared 9,406 predominantly hypermethylated CpG sites, independent of cytogenetic background. Second, each cytogenetic subtype of ALL displayed a unique set of hyper- and hypomethylated CpG sites. more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

945 Samples

Download data

(Submitter supplied) A new subtype of B-ALL was identified through integrative genomic analysis and H3K27ac HiChIP was used to investigate impact of structural variants on the CDX2-FLT3-PAN3 genomic region

Organism:

Homo sapiens

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL24676

2 Samples

Download data: BEDPE, BW, HIC

(Submitter supplied) Intrachromosomal amplification of chromosome 21 (iAMP21) defines a distinct subgroup of childhood B-cell precursor acute lymphoblastic leukemia (BCP-ALL) shown to have a dismal outcome on standard therapy. For improved diagnosis and prognosis of these patients, the initiating genetic events need to be elucidated. To investigate the genetic basis, the genomes of 94 iAMP21 patients were interrogated by genomic arrays, FISH and MLPA. more...

Organism:

Homo sapiens

Type:

Genome variation profiling by array

Platform:

GPL11340

18 Samples

Download data: TXT