Specific cytogenetic clones might distinguish patients with unrecognized Fanconi anemia (FA) who present with acute myeloid leukemia (AML) from those with sporadic AML. Cytogenetic reports in literature cases of FA and AML were compared with de novo cases enrolled on CCG-2961. Gain of 1q, gain of 3q, monosomy 7, deleted 7q, gain of 13q, and deleted 20q were more frequent in FA AML; t(8;21), tri...

Acute myeloid leukemia (AML) is a heterogeneous group of genetically defined diseases. Their classification is important with regard to prognosis and treatment. We performed microarray analyses for gene expression profiling on bone marrow samples of 37 patients with newly diagnosed AML. All cases had either of the distinct subtypes AML M2 with t(8;21), AML M3 or M3v with t(15;17), or AML M4eo w...

This paper describes the Array Manipulation Language (AML), an algebra for multidimensional array data. AML is generic, in the sense that it can be customized to support a wide variety of domain-specific operations on arrays. AML expressions can be treated declaratively and subjected to rewrite optimizations. To illustrate this, several rewrite rules that exploit the structural properties of th...

To study the oncogenic role of the NRAS oncogene (NRASG12V) in the context of acute myeloid leukemia (AML), we used a Vav promoter–tetracycline transactivator (Vav-tTA)–driven repressible TRENRASG12V transgene system in Mll-AF9 knock-in mice developing AML. Conditional repression of NRASG12V expression greatly reduced peripheral white blood cell (WBC) counts in leukemia recipient mice and induc...

Mutations in splice factor (SF) genes occur more frequently in myelodysplastic syndromes (MDS) than in acute myeloid leukemias (AML). We sequenced complementary DNA from bone marrow of 47 refractory anemia with excess blasts (RAEB) patients, 29 AML cases with low marrow blast cell count, and 325 other AML patients and determined the presence of SF-hotspot mutations in SF3B1, U2AF35, and SRSF2. ...

Phosphoinositide-3-kinase (PI3K) is an enzyme group, known to regulate key survival pathways in acute myeloid leukaemia (AML). It generates phosphatidylinositol-3,4,5-triphosphate, which provides a membrane docking site for protein kinaseB activation. PI3K catalytic p110 subunits are divided into 4 isoforms; α,β,δ and γ. The PI3Kδ isoform is always expressed in AML cells, whereas the frequency ...

BACKGROUND Xenotransplantation of patient-derived AML (acute myeloid leukemia) cells in NOD-scid Il2rγ null (NSG) mice is the method of choice for evaluating this human hematologic malignancy. However, existing models constructed using intravenous injection in adult or newborn NSG mice have inferior engraftment efficiency, poor peripheral blood engraftment, or are difficult to construct. METH...

BACKGROUND Little is known about the morphological and clinical features of the minority of acute myeloid leukemias (AML) that carry the t(9;22)(q34;q11) translocation. MATERIALS AND METHODS Cytologic, cytogenetic and clinical features were studied at diagnosis and during disease evolution in 11 patients presenting with de novo AML. Diagnoses according to the FAB criteria were AML-M2 (3 cases...

Acute Myeloid Leukemia (AML), the most common acute leukemia in adults, is a genetically heterogeneous disease. Genomic alterations condition pathophysiology of AML. Nowadays, these changes are considered to be important biomarkers for risk stratification, treatment decisions (including new targeted drugs) and Minimal Residual Disease (MRD) monitoring during followup Positive MRD AML patients a...

Molecular classification of acute myeloid leukemia (AML) aids prognostic stratification and clinical management. Our aim in this study is to identify transcriptome-wide mRNAs that are specific each the molecular subtypes AML. We analyzed RNA-sequencing data 955 AML samples from three cohorts, including BeatAML project, Cancer Genome Atlas, a cohort Swedish patients provide comprehensive view su...