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Gene Expression-Based High Throughput Screening: Primary Patient AML Blasts, Normal Neutrophils, and Normal Monocytes

ABSTRACT: We developed a general approach to small molecule library screeening called GE-HTS (Gene Expression-Based High Throughput Screening) in which a gene expression signature is used as a surrogate for cellular states and applied it to the identification of compounds inducing the differentiation of acute myeloid leukemia cells. In screening 1,739 compounds, we identified 8 that reliably induced the differentiation signature, and furthermore yielded functional evidence of bona fide differentiation. This data set contains 3 primary patient AML samples, 3 normal human neutrophil and 3 normal human monocyte samples. This data set was used to identify the genes that distinguish AML cells from normal human myeloid cells for the purpose of selecting marker genes for the screen. Keywords = AML Keywords = neutrophil Keywords = monocyte Keywords = chemical genomics Keywords: repeat sample

ORGANISM(S): Homo sapiens

PROVIDER: GSE983 | GEO | 2004/01/30

SECONDARY ACCESSION(S): PRJNA89875

REPOSITORIES: GEO

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Gene Expression-Based High Throughput Screening: HL-60 Cell Treatment with Candidate Compounds

Project description:We developed a general approach to small molecule library screening called GE-HTS (Gene Expression-Based High Throughput Screening) in which a gene expression signature is used as a surrogate for cellular states and applied it to the identification of compounds inducing the differentiation of acute myeloid leukemia cells. In screening 1,739 compounds, we prioritized 15 candidate compounds (2 were already confirmed in the literature). We next evaluated the 13 remaining compounds. Eight reliably induced the differentiation signature, and furthermore yielded functional evidence of bona fide differentiation. This data set contains HL-60 cells treated in replicates of 3 with the original 13 selected candidates. It also contains 6 untreated, 6 DMSO treated, 3 ATRA treated, 3 PMA treated, and 3 1,25-dihydroxyvitamin D3 treated HL-60 controls. In addition, it contains 3 neutrophil and 3 monocyte samples from distinct normal human donors and 9 primary patient AML samples. This data set was used to evaluate the whole genome effects of the candidate compounds on HL-60 cells. Keywords = AML Keywords = leukemia Keywords = HL-60 Keywords = chemical genomics Keywords: repeat sample

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Gene Expression-Based High Throughput Screening: APL Treatment with Candidate Compounds

Project description:We developed a general approach to small molecule library screening called GE-HTS (Gene Expression-Based High Throughput Screening) in which a gene expression signature is used as a surrogate for cellular states and applied it to the identification of compounds inducing the differentiation of acute myeloid leukemia cells. In screening 1,739 compounds, we identified 8 that reliably induced the differentiation signature, and furthermore yielded functional evidence of bona fide differentiation. We tested several of these in duplicate replicates in blasts from a patient with APL. Also included in this data set are a collection of 6 primary patient AML cells, 3 normal neutrophils samples, and 3 normal monocyte samples. This data was used to evaluate whole genome effects of the compounds on APL cells in relation to AML versus normal neutrophils and monocytes. Keywords = Leukemia Keywords = APL Keywords = AML Keywords = chemical genomics Keywords: repeat sample

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Transcription profiling of human acute myeloid leukemia cells to identify compounds inducing the differentiation of acute myeloid leukemia cells

Project description:We developed a general approach to small molecule library screening called GE-HTS (Gene Expression-Based High Throughput Screening) in which a gene expression signature is used as a surrogate for cellular states and applied it to the identification of compounds inducing the differentiation of acute myeloid leukemia cells. In screening 1,739 compounds, we identified 8 that reliably induced the differentiation signature, and furthermore yielded functional evidence of bona fide differentiation. This SuperSeries is composed of the following subset Series:; GSE976: Gene Expression-Based High Throughput Screening: APL Treatment with Candidate Compounds; GSE982: Gene Expression-Based High Throughput Screening: HL-60 Cell Treatment with Candidate Compounds; GSE983: Gene Expression-Based High Throughput Screening: Primary Patient AML Blasts, Normal Neutrophils, and Normal Monocytes; GSE985: Gene Expression-Based High Throughput Screening: HL-60 Cells Treated with ATRA and PMA Experiment Overall Design: Refer to individual Series

2007-09-20 | E-GEOD-995 | biostudies-arrayexpress

Gene Expression-Based High Throughput Screening: HL-60 Cells Treated with ATRA and PMA

Project description:We developed a general approach to small molecule library screening called GE-HTS (Gene Expression-Based High Throughput Screening) in which a gene expression signature is used as a surrogate for cellular states and applied it to the identification of compounds inducing the differentiation of acute myeloid leukemia cells. In screening 1,739 compounds, we identified 8 that reliably induced the differentiation signature, and furthermore yielded functional evidence of bona fide differentiation. This data set contains HL-60 cells treated in a time course, in replicate, with 1 uM all trans retinoic acid (ATRA) and 10 nM phorbol 12-myristate 13-acetate (PMA). Also included are untreated HL-60 controls. This data set was used to select marker genes that distinguish the undifferentiated from the PMA or ATRA differentiated states. Keywords = AML Keywords = leukemia Keywords = HL-60 Keywords = chemical genomics Keywords: repeat sample

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Functional evaluation of neutrophil of patients at high risk for infection treated with multiple monocyte/ neutrophil aphaereses

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Project description:Cure rates for patients with acute myeloid leukemia (AML) remain low despite ever-increasing dose intensity of cytotoxic therapy. In an effort to identify novel approaches to AML therapy, we recently reported a new method of chemical screening based on the modulation of a gene expression signature of interest. We applied this approach to the discovery of AML-differentiation-promoting compounds. Among the compounds inducing neutrophilic differentiation was DAPH1 (4,5-dianilinophthalimide), previously reported to inhibit epidermal growth factor receptor (EGFR) kinase activity. Here we report that the Food and Drug Administration (FDA)-approved EGFR inhibitor gefitinib similarly promotes the differentiation of AML cell lines and primary patient-derived AML blasts in vitro. Gefitinib induced differentiation based on morphologic assessment, nitro-blue tetrazolium reduction, cell-surface markers, genome-wide patterns of gene expression, and inhibition of proliferation at clinically achievable doses. Importantly, EGFR expression was not detected in AML cells, indicating that gefitinib functions through a previously unrecognized EGFR-independent mechanism. These studies indicate that clinical trials testing the efficacy of gefitinib in patients with AML are warranted. golub-00392 Assay Type: Gene Expression Provider: Affymetrix Array Designs: HG-U133A, HG-U133A_2 Organism: Homo sapiens (ncbitax) Material Types: cell, total_RNA, synthetic_RNA, organism_part, whole_organism*Cell Types: Disease States: Acute Myeloid Leukemia, Normal, Acute Myeloid Leukemia

2015-05-16 | E-GEOD-68954 | biostudies-arrayexpress

A novel tubulin binding molecule drives differentiation of acute myeloid leukaemia cells

Project description:Acute Myeloid Leukaemia (AML) continues to have a poor prognosis, especially in the elderly. One reason for this is that many treatment regimens are not well tolerated by elderly patients. Much current focus is on the development of therapies that can target specific vulnerabilities of AML while having fewer toxic side effects. However, despite much recent progress in developing better drugs, many patients with AML still die within a year of diagnosis, partly due to the fact that it is difficult to identify therapeutic targets that are effective across multiple AML subtypes. One common factor across AML subtypes is the presence of a block in differentiation. Thus screening for compounds that can overcome this block in genetically diverse AML models should allow for the identification of agents that are not dependent on a specific mutation for their efficacy. Here, we used a phenotypic screen to identify novel compounds that stimulate differentiation in several AML cell lines. Lead compounds were shown to decrease tumour burden and to increase survival in vivo. Using multiple complementary target deconvolution approaches, these compounds were revealed to be anti-mitotic tubulin disruptors that cause differentiation by inducing a G2-M mitotic arrest. Together, these results reveal a novel function for tubulin disruptors in causing differentiation of AML cells.

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caArray_golub-00392: Gefitinib (Iressa) induces myeloid differentiation of acute myeloid leukemia

2015-05-16 | GSE68954 | GEO

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