GEO DataSets

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

Organism:

Mus musculus; Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL6246 GPL5175

48 Samples

Download data: CEL

(Submitter supplied) To identify such targets of leukemia-related miRNAs such as miR-196b, we conducted Affymetrix gene arrays of leukemic BM samples from 24 mice including 9 primary (including 3 each of negative control, MLL-AF9, and miR-196b+MLL-AF9) and 15 secondary (including 3 negative control, 6 MLL-AF9, and 6 miR-196b+MLL-AF9) recipient mice

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

24 Samples

Download data: CEL

(Submitter supplied) To identify potential target genes of leukemia-related miRNAs such as miR-196b and miR-150 in human MLL-associated leukemia, we performed Affymetrix Human Exon 1.0 ST array assay of 15 human MLL-associated samples and 9 human normal bone marrow (including 3 each of CD34+, CD33+, and MNC) cell samples.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL5175

24 Samples

Download data: CEL

(Submitter supplied) Increased expression levels of miR-181 family members have been shown to be associated with favorable outcome in patients with cytogenetically normal acute myeloid leukemia. Here we show that increased expression of miR-181a and miR-181b is also significantly (P < .05; Cox regression) associated with favorable overall survival in cytogenetically abnormal AML (CA-AML) patients. We further show that up-regulation of a gene signature composed of 4 potential miR-181 targets (including HOXA7, HOXA9, HOXA11, and PBX3), associated with down-regulation of miR-181 family members, is an independent predictor of adverse overall survival on multivariable testing in analysis of 183 CA-AML patients. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL5175

93 Samples

Download data: CEL

(Submitter supplied) Increased expression levels of miR-181 family members have been shown to be associated with favorable outcome in patients with cytogenetically normal acute myeloid leukemia. Here we show that increased expression of miR-181a and miR-181b is also significantly (P < .05; Cox regression) associated with favorable overall survival in cytogenetically abnormal AML (CA-AML) patients. We further show that up-regulation of a gene signature composed of 4 potential miR-181 targets (including HOXA7, HOXA9, HOXA11, and PBX3), associated with down-regulation of miR-181 family members, is an independent predictor of adverse overall survival on multivariable testing in analysis of 183 CA-AML patients. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL13781

65 Samples

Download data: TXT

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

Organism:

Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL13781 GPL5175

158 Samples

Download data: CEL, TXT

(Submitter supplied) To investigate whether co-expression of PBX3/MEIS1 can mimic that of MLL-AF9, HOXA9/MEIS1 or HOXA9/PBX3 in inducing leukemogenesis, we conducted in vivo mouse bone marrow transplantation (BMT) assays. Briefly, normal mouse bone marrow (BM) progenitor (i.e., lineage negative; Lin-) cells collected from B6.SJL (CD45.1) donor mice (CD45.1) were retrovirally co-transduced with MSCVneo-MLL-AF9+MSCV-PIG (MLL-AF9), MSCVneo-HOXA9+MSCV-PIG (HOXA9), MSCVneo-HOXA9+MSCV-PIG-MEIS1 (HOXA9+MEIS1), MSCVneo-HOXA9+MSCV-PIG-PBX3 (HOXA9+PBX3), MSCV-PIG-PBX3+MSCVneo-MEIS1 (PBX3+MEIS1), MSCVneo+MSCV-PIG-PBX3 (PBX3) , MSCVneo+MSCV-PIG-MEIS1 (MEIS1), or MSCVneo+MSCV-PIG (normal control; NC). more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL16570

20 Samples

Download data: CEL

(Submitter supplied) OBJECTIVE: The microRNA miR-155 is upregulated in Hoxa9 and Meis1 leukemia inducing cells (LIC) , and miR-155 accelerates the onset of acute myeloid leukemia (AML) together with Hoxa9 but through largely unknown molecular mechanisms. The impact of miR-155 on accelerated onset of leukemia in the context of Hoxa9 and Meis1 is also unclear. To further resolve this, we performed a gene expression profiling, in the context of Hoxa9 and Meis1 leukemogenesis with miR-155 knocked out. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6096

6 Samples

Download data: CEL, CHP

(Submitter supplied) Acute Myeloid Leukemia (AML) is associated with a number of genetic and epigenetic events that result in malignant transformation of hematopoietic cells. In particular, transcription factors essential for normal hematopoiesis and stem cell function are often found mutated leading to the formation of leukemic stem cells and the accumulation of immature blasts. Among them, translocations involving the mixed lineage leukemia (MLL) gene at chromosome band 11q23 are one of the most commonly events (~10 %) and is associated with poor prognosis in human leukemias. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL11002 GPL13112

11 Samples

Download data: TXT

(Submitter supplied) Translocations involving the MLL genes are frequently found in Acute Myeloid Leukemia (AML) and are associated with poor prognosis. The MLL fusion proteins act as aberrant transcription factor activating a transcriptional program that transforms the cells, potentially through collaboration with other transcription factors. To investigate this we searched gene expression profiles from patients with MLL-rearranged AML compared with normal hematopoietic progenitor cells for transcriptional regulators and found targets of C/EBPα to be up-regulated in the AML samples, suggesting that C/EBPα might collaborate with MLL fusion proteins in the initial transformation process. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

12 Samples

Download data: CEL

(Submitter supplied) The aim of the study was to investigate the role of TGIF1 in MLL-AF9 transformed cells Members of the TALE (Three-amino acid loop extension) family of atypical homeodomain-containing transcription factors are prominent downstream effectors of oncogenic fusion proteins generated from translocations involving the mixed lineage leukemia (MLL) gene. A particular well-characterized member of this protein family is MEIS1, which together with HOXA proteins, orchestrates a transcriptional program required for the maintenance of MLL-rearranged acute myeloid leukemia (AML). more...

Organism:

Mus musculus

Type:

Expression profiling by array

Dataset:

GDS5456

Platform:

GPL6246

6 Samples

Download data: CEL, TXT

(Submitter supplied) Members of the TALE (Three-amino acid loop extension) family of atypical homeodomain-containing transcription factors are prominent downstream effectors of oncogenic fusion proteins generated from translocations involving the mixed lineage leukemia (MLL) gene. A particular well-characterized member of this protein family is MEIS1, which together with HOXA proteins, orchestrates a transcriptional program required for the maintenance of MLL-rearranged acute myeloid leukemia (AML). more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL11002 GPL13112

9 Samples

Download data: BW, TXT

Analysis of mixed lineage leukemia (MLL)-AF9 transformed cells (MAF9) transduced with TGF-β induced factor 1 (TGIF1). TGIF1 is a member of the TALE (three-amino-acid loop extension) family of homeodomain-containing transcription factors. Results provide insight into the role of TGIF1 in MAF9 cells.

Organism:

Mus musculus

Type:

Expression profiling by array, count, 2 protocol sets

Platform:

GPL6246

Series:

GSE55713

6 Samples

Download data: CEL

(Submitter supplied) The purpose of this study is to investigate the transcriptional programs as it relates to disease latency initiated by different MLL fusion proteins, including: MLL-AF1p, MLL-AF6, MLL-Gas7, MLL-AF9 and MLL-ENL. Leukemia cell lines were established by transforming kit+ mouse bone marrow cells with retroviruses coding MLL-AF1p, MLL-AF6, MLL-Gas7, MLL-AF9 or MLL-ENL. At early phase after the cell lines were established, cells growing at exponential phase (cell density at 0.5~1x106/ml) were harvested for RNA extraction and sequencing purpose.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

12 Samples

Download data: TXT

(Submitter supplied) MLL-rearranged acute myeloid leukemia (AML) remains a fatal disease with a high rate of relapse and therapeutic failure due to chemotherapy resistance. In analysis of our Affymetrix microarray profiling of human AML and normal control samples, we found that ALOX5 is especially down-regulated in MLL-rearranged AML. Our colony forming/replating and bone marrow transplantation (BMT) assays showed that Alox5 exhibited a moderate anti-tumor effect both in vitro and in vivo. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17021

4 Samples

Download data: TXT

(Submitter supplied) Chromatin accessibility was assessed by ATAC-Seq in lymphoid-primed multipotent progenitors (LMPPs) from human foetal livers (FLs) and mouse wild-type FLs as well as FLs from mouse embryos that express the oncofusion Mll-AF4 in the definitive blood system. The aim of this study was to establish whether overall chromatin accessibility at key haematopoietic sites and loci that have been linked to leukaemia are differentially accessible in human vs mouse LMPPs and whether this is altered by the expression of the Mll-AF4 oncofusion.

Organism:

Homo sapiens; Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL21273 GPL20795

10 Samples

Download data: BW

(Submitter supplied) Leukemias that harbor translocations involving the mixed lineage leukemia gene (MLL) possess unique biological characteristics and often have an unfavorable prognosis. Gene expression analyses demonstrate a distinct profile for MLL-rearranged leukemias with consistent high-level expression of select Homeobox genes including HOXA9. Here, we investigated the effects of HOXA9 suppression in MLL-rearranged and MLL-germline leukemias utilizing RNAi. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL571

12 Samples

Download data: CEL

(Submitter supplied) Human leukemia cell line RS4.11 was treated with GSK-3 inhibitor SB216763 for 20 hours. Gene expression profiling was performed to analyze genes affected by GSK-3 inhibition.

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS4043

Platform:

GPL6244

5 Samples

Download data: CEL, CHP

Analysis of MLL leukemia cell line RS4.11 treated with GSK-3 inhibitor SB216763 for 20 hours. Results provide insight into the molecular mechanisms underlying MLL leukemia dependence on GSK-3.

Organism:

Homo sapiens

Type:

Expression profiling by array, transformed count, 2 agent sets

Platform:

GPL6244

Series:

GSE19736

5 Samples

Download data: CEL, CHP

(Submitter supplied) The histone 3 lysine 79 (H3K79) methyltransferase Dot1l has been implicated in the development of leukemias bearing translocations that involve the Mixed Lineage Leukemia (MLL) gene. We identified the MLL-fusion targets in a murine MLL-AF9 leukemia model, and conducted epigenetic profiling for H3K79me2, H3K4me3, H3K27me3 and H3K36me3. Histone methylation patterns are highly abnormal on MLL-AF9 fusion target loci, defining a distinct epigenetic lesion involving H3K79. more...

Organism:

Homo sapiens; Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL13112 GPL11002 GPL10999

15 Samples

Download data: WIG