GEO DataSets

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 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

(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) 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:

GPL13112 GPL11002

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) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus; Homo sapiens

Type:

Expression profiling by array

Platforms:

GPL5175 GPL6246

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) 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) 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) ZNF521 is a multiple zinc finger transcription factor previously identified because abundantly and selectively expressed in normal CD34+ hematopoietic stem and progenitor cells. From microarray datasets, aberrant expression of ZNF521 has been reported in both pediatric and adult acute myeloid leukemia (AML) patients with MLL gene rearrangements. However, a proper validation of microarray data is lacking, likewise ZNF521 contribution in MLL-rearranged AML is still uncertain. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

6 Samples

Download data: CEL

(Submitter supplied) Leukemias with MLL-rearrangements are characterized by high expression of the homeo box gene MEIS1. In these studies, we knocked down Meis1 expression by shRNA lentivirus transduction in murine Mll-AF9 leukemia cells. Meis1 knockdown resulted in decreased proliferation and survival of murine Mll-AF9 leukemia cells. We also observed reduced clonogenic capacity and increased monocytic differentiation. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL1261

10 Samples

Download data: CEL

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

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

14 Samples

Download data: IDAT

(Submitter supplied) Gene expression analysis of two MLL-r leukaemia cell lines (SM6p2 and SM6p3) and the parental PER-485 MLL-rearranged leukaemia cell line they were derived from by continuous culturing in CCI-006. SM6p2 and SM6p3 thereby developed induced resistance against the compound. The aim of this experiment was to identify any gene expression changes in SM6p2 and SM6p3 cells induced by continuous culturing in CCI-006, thereby potentially providing insight into the mechanisms of primary and induced resistance of MLL-rearranged leukaemia cell lines against the cytotoxic compound CCI-006.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

8 Samples

Download data: IDAT, TXT

(Submitter supplied) A phenotypic cell-based high-throughput screen identified a novel small molecule, CCI-006 with selective cytotoxic activity against MLL-rearranged leukaemia cell lines. The aim of this experiment was to identify the mechanism of action of CCI-006 by investigating the gene expression changes induced in a MLL-rearranged leukaemia cell line following a short incubation with the compound.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL10558

6 Samples

Download data: IDAT, TXT

(Submitter supplied) The Polymerase Associated Factor (PAFc) complex is an epigenetic regulating complex that has been shown to to be important for Acute Myeloid Leukemias harboring an MLL chromosomal translocations, such as MLL-AF9 leukemias. This study describes the transcriptomic profiling of AML cells following genetic deletion of the PAFc subunit Cdc73.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13112

8 Samples

Download data: TXT

(Submitter supplied) The interaction of Menin (MEN1) and MLL (MLL1, KMT2A) is a dependency and potential therapeutic opportunity against NPM1 mutant (NPM1mut) and MLL-rearranged (MLL-r) leukemias. Concomitant activating driver mutations in the gene encoding the tyrosine kinase FLT3 occur in both leukemias and are particularly common in the NPM1mut subtype. Transcriptional profiling upon pharmacological inhibition of the Menin-MLL complex revealed specific changes in gene expression with downregulation of the MEIS1 transcription factor and its transcriptional target gene FLT3 being most pronounced. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20301

24 Samples

Download data: TXT

(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) 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:

GPL20301

14 Samples

Download data