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Transcriptome of primary acute myeloid leukemia (AML) cells treated with AICAr

ABSTRACT: Transcriptome of primary acute myeloid leukemia (AML) cells treated with AICAr

PROVIDER: PRJEB38815 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	ERR4232530_1.fastq.gz	Fastqsanger.gz
	ERR4232530_2.fastq.gz	Fastqsanger.gz
	ERR4232531_1.fastq.gz	Fastqsanger.gz
	ERR4232531_2.fastq.gz	Fastqsanger.gz
	ERR4232532_1.fastq.gz	Fastqsanger.gz

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Transcriptome of primary acute myeloid leukemia (AML) cells treated with AICAr

Project description:Ribonucleoside AICAr, a precursor in purine synthesis and a known activator of AMPK, was shown to induce monocytic differentiation in AML cell lines by inducing pyrimidine depletion followed by activation of ATR/Chk1 pathway and cell cycle arrest. Here we report transcriptional changes induced by AICAr in the primary AML sample (FAB-M2, FLT3 negative, NPM1 negative) in which AICAr induced differentiation and accumulation of macrophage cells in vitro. RNA-seq transcriptome analysis of primary AML cells isolated from the bone marrow of a patient with de novo FAB-M2 AML. Mononuclear cells were isolated from the bone marrow sample by density gradient separation and grown in RPMI supplemented with 10% FBS, 2 mM L-glutamine, 50 U/ml penicillin, 50 μg/ml streptomycin and 50 ng/ml IL-3, IL-6, SCF and FLT3L. Cells were treated with AICAr (0.4 mM) for 24 h. Experiment was performed in biological triplicates and total RNA was isolated for transcriptome analysis using Illumina high throughput sequencing.

2020-11-01 | E-MTAB-9209 | biostudies-arrayexpress

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Project description:Experiments using xenografts show that some solid tumours and leukemias are organized as cellular hierarchies sustained by cancer stem cells (CSC). Despite promise, the relevance of the CSC model to human disease remains uncertain. Here we show that acute myeloid leukemia (AML) follows a CSC model based on sorting multiple populations from each of 16 primary human AML samples and identifying which contain leukemia stem cells (LSC) using a sensitive xenograft assay. Analysis of gene expression from all functionally validated populations yielded an LSC-specific signature. Similarly, a hematopoietic stem cell (HSC) gene signature was established. Bioinformatic analysis identified a core transcriptional program shared by LSC and HSC, revealing the molecular machinery underlying stemness properties. Both stem cell programs were highly significant independent predictors of patient survival and also found in existing prognostic signatures. Thus, determinants of stemness influence clinical outcome of AML establishing that LSC are clinically relevant and not mere artifacts of xenotransplantation. Analysis of gene expression in FACS sorted AML fractions that were functionally determined to be enriched for LSC or not (25 and 29 respectively).

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