GEO DataSets

Analysis of AML blasts displaying aberrant cytoplasmic localization of nucleophosmin (NPMc+ AML) but negative for AML-associated chromosomal translocations. Results provide insight into the validity of the putative predictors of NPM status identified by the training set.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 2 genotype/variation sets

Platform:

GPL96

Series:

GSE34860

39 Samples

Download data: CEL

(Submitter supplied) Approximately one third of acute myeloid leukemias (AMLs) are characterized by aberrant cytoplasmic localization of Nucleophosmin (NPMc+ AML), consequent to mutations in the NPM putative nucleolar localization signal. These events are mutually exclusive with the major AML-associated chromosomal rearrangements, and are frequently associated with normal karyotype, Fms-like tyrosine kinase (FLT3) mutations and multilineage involvement. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Datasets:

GDS4500 GDS4501

Platform:

GPL96

78 Samples

Download data: CEL

Analysis of AML blasts displaying aberrant cytoplasmic localization of nucleophosmin (NPMc+ AML) but negative for AML-associated chromosomal translocations. Results provide insight into putative predictors of NPM status.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 2 genotype/variation sets

Platform:

GPL96

Series:

GSE34860

39 Samples

Download data: CEL

(Submitter supplied) Nucleophosmin (NPM1) is either frequently mutated or subjected to chromosomal translocation in acute myeloid leukemia (AML). NPM protein is primarily located in the nucleus, but the recurrent NPMc+ mutation is characterized by cytoplasmic localization and leukemogenic properties. Similarly, the NPM-MLF1 translocation product favors the partial cytoplasmic retention of NPM. Regardless of their common cellular distribution, NPM-MLF1 malignancies engender different effects on hematopoiesis compared to NPMc+ counterparts, highlighting possible aberrant nuclear function(s) of NPM in NPMc+ AML. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL17303

6 Samples

Download data: XLSX

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

Organism:

Mus musculus

Type:

Expression profiling by array; Methylation profiling by high throughput sequencing

Platforms:

GPL6246 GPL13112

22 Samples

Download data: BED, CEL

(Submitter supplied) Mutations in IDH1 and IDH2 are frequently observed in various cancers, including acute myeloid leukemia (AML). Mutant IDHs convert α-ketoglutarate (α-KG) to 2-hydroxyglutarate (2-HG), which dysregulates a set ofα-KG-dependent dioxygenases. To determine whether mutant IDHs are valid targets for cancer therapy, we established a mouse AML model harboring an IDH2 mutation by transplanting mice with nucleophosmin1 (NPM1)+/- mouse hematopoietic stem/progenitor cells that had been co-transduced with four mutant genes (NPMc, IDH2/R140Q, DNMT3A/R882H and FLT3/ITD) that frequently occur simultaneously in human AML patients. more...

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL13112

3 Samples

Download data: BED

(Submitter supplied) Mutations in IDH1 and IDH2 are frequently observed in various cancers, including acute myeloid leukemia (AML). Mutant IDHs convert α-ketoglutarate (α-KG) to 2-hydroxyglutarate (2-HG), which dysregulates a set ofα-KG-dependent dioxygenases. To determine whether mutant IDHs are valid targets for cancer therapy, we established a mouse AML model harboring an IDH2 mutation by transplanting mice with nucleophosmin1 (NPM1)+/- mouse hematopoietic stem/progenitor cells that had been co-transduced with four mutant genes (NPMc, IDH2/R140Q, DNMT3A/R882H and FLT3/ITD) that frequently occur simultaneously in human AML patients. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL6246

19 Samples

Download data: CEL

(Submitter supplied) Multilineage dysplasia (MLD) has no impact on biological, clinico-pathological and prognostic features of AML with mutated nucleophosmin (NPM1) NPM1-mutated AML is a provisional entity in the WHO-2008 classification of myeloid neoplasms. The significance of concomitant multilineage dysplasia (MLD) in NPM1-mutated AML is unclear. Thus, in the WHO-2008 classification, NPM1-mutated AML with MLD is classified as AML with myelodysplasia(MD)-related changes. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL570

48 Samples

Download data: CEL

(Submitter supplied) Homeobox (HOX) proteins and the receptor tyrosine kinase FLT3 are frequently highly expressed and mutated in acute myeloid leukemia (AML). Aberrant HOX expression is found in nearly all AMLs that harbor a mutation in the Nucleophosmin (NPM1) gene, and FLT3 is concomitantly mutated in approximately 60% of these cases. Little is known how mutant NPM1 (NPM1mut) cells maintain aberrant gene expression. Here, we demonstrate that the histone modifiers MLL1 and DOT1L control HOX and FLT3 expression and differentiation in NPM1mut AML. Using a CRISPR-Cas9 genome editing domain screen, we show NPM1mut AML to be exceptionally dependent on the menin binding site in MLL1. Pharmacological small-molecule inhibition of the menin-MLL protein interaction had profound anti-leukemic activity in human and murine models of NPM1mut AML in vitro and in vivo. Combined pharmacological inhibition of menin-MLL and DOT1L resulted in dramatic suppression of HOX and FLT3 expression, induction of differentiation, and superior activity against NPM1mut leukemia. Together, MLL1 and DOT1L are chromatin regulators that control HOX, MEIS1 and FLT3 expression and are therapeutic targets in NPM1mut AML. Combinatorial small-molecule inhibition has synergistic on target activity and constitutes a novel therapeutic concept for this common AML subtype.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL11154

13 Samples

Download data: TXT