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Single-cell RNA-seq of AML patient bone marrow treated with INCB059872, azacitidine, or combination

ABSTRACT: Single-cell RNA-seq of AML patient bone marrow treated with INCB059872, azacitidine, or combination

PROVIDER: PRJNA607109 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11097204_1.fastq.gz	Fastqsanger.gz
	SRR11097204_2.fastq.gz	Fastqsanger.gz
	SRR11097205_1.fastq.gz	Fastqsanger.gz
	SRR11097205_2.fastq.gz	Fastqsanger.gz
	SRR11097206_1.fastq.gz	Fastqsanger.gz

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Single-cell RNA-seq of AML patient bone marrow treated with INCB059872, azacitidine, or combination

Project description:INCB059872 is a selective irreversible inhibitor of Lysine-Specific Demethylase 1 (LSD1) that is in phase 1 clinical trials in hematopoietic malignancies. We evaluated a pre-treatment bone marrow sample of a patient who showed a clinical response to INCB059872 + azacitidine treatment. Single-cell RNA-sequencing (scRNA-seq) showed that INCB059872 caused a shift in gene expression that was associated with GFI1/GFI1B regulation.

2020-05-28 | GSE145410 | GEO

Gene expression profiles of MV-4-11 AML cells treated HDAC1/2 -selective inhibitor and Azacitidine

Project description:Determine the differences in gene expression profiles of MV-4-11 AML cells treated with HDAC1/2-selective inhibition, azacitidine, or the combination of the two agents. Acute myeloid leukemia (AML) is a heterogeneous group of hematopoietic stem cell disorders characterized by defects in myeloid differentiation and increased proliferation of neoplastic hematopoietic precursor cells. Outcomes for patients with AML remain poor, highlighting the need for novel treatment options. Aberrant epigenetic regulation plays an important role in the pathogenesis of AML, and inhibitors of DNA methyltransferase or histone deacetylase (HDAC) enzymes have exhibited activity in preclinical AML models. Combination studies with HDAC inhibitors plus DNA methyltransferase inhibitors have suggested beneficial clinical activity in AML, however the toxicity profiles of non-selective HDAC inhibitors in the combination setting limit their clinical utility. In this work, we describe the preclinical development of selective inhibitors of HDAC1 and HDAC2, which are hypothesized to have improved safety profiles, for combination therapy in AML. We demonstrate that selective inhibition of HDAC1 and HDAC2 is sufficient to achieve efficacy both as a single agent and in combination with azacitidine in preclinical models of AML, including established AML cell lines, leukemia cells from AML patient bone marrow samples and in vivo xenograft models of human AML. Gene expression profiling of AML cells treated with either an HDAC1/2 inhibitor, azacitidine, or the combination of both have identified a list of genes involved in transcription and cell cycle regulation as potential mediators of the combinatorial effects of HDAC1/2 inhibition with azacitidine. Together, these findings support the clinical evaluation of selective HDAC1/2 inhibitors in combination with azacitidine in AML patients.

2017-03-08 | GSE84440 | GEO

Single-cell RNA-seq: INCB059872 in wild-type murine bone marrow

Project description:INCB059872 is a selective irreversible inhibitor of Lysine-Specific Demethylase 1 (LSD1) that is in phase 1 clinical trials in hematopoietic malignancies. Mice treated with INCB059872 had reduced platelet counts within 4 days of treatment. Here, we used single-cell RNA-seq to study the effects of INCB059872 on hematopoietic progenitor populations within wild-type murine bone marrow. Our results showed that INCB059872 triggered accumulation of megakaryocyte early progenitor cells with gene expression hallmarks of stem cells, which may begin to explain the thrombocytopenia observed in patients treated with LSD1 inhibitors.

2020-05-28 | GSE145279 | GEO

RNA-seq of MV-4-11 or THP-1 cells treated with LSD1 inhibitor INCB059872

Project description:INCB059872 is a selective irreversible inhibitor of Lysine-Specific Demethylase 1 (LSD1) that is in phase 1 clinical trials in hematopoietic malignancies. LSD1 inhibition can induce differentiation of acute myeloid leukemia (AML), and here we have used RNA-seq to measure the transcriptional changes caused by INCB059872 in two AML cell lines.

2020-05-28 | GSE145106 | GEO

Crenolanib in combination with azacitidine abrogates stromal protection and survival of leukemia-initiating cells in FLT3-ITD+ AML

Project description:Effectively targeting leukemia-initiating cells (LIC) in FLT3-internal-tandem-duplication (ITD)-mutated acute myeloid leukemia (AML) remains a crucial goal for achievement of cure. FLT3 tyrosine kinase inhibitors (TKI) have limited impact as single agents and have thus far been unable to eradicate LIC enriched in the CD34+CD38- bone marrow compartment and protected by contact with niche cells.Using primary AML samples in vitro as well as in an in vivo xenograft model, we investigated whether combining the novel FLT3-selective TKI crenolanib with the hypomethylating agent azacitidine (AZA) can eliminate LIC in FLT3-ITD+ AML and determined whether efficacy of this combination is dependent on coexisting genetic mutations in DNMT3A, NPM1 and TET2. Our data show that crenolanib as a single agent was unable to target FLT3-ITD+ LIC in contact with niche cells while the addition of AZA overcame stromal protection and resulted in dramatically reduced clonogenic capacity of FLT3-ITD+ LIC in vitro as well as severely impaired engraftment capacity of FLT3-ITD+ LIC in NSG mice. Strikingly, FLT3-mutated AML samples harboring concurrent TET2 mutations were completely resistant to crenolanib as a single agent. Mutations in DNMT3A or NPM1 had no influence on response to crenolanib while DNMT3A mutations conferred increased sensitivity of FLT3-ITD+ LIC to AZA. Our data suggest that response to crenolanib or AZA as single agents in FLT3-ITD+ AML is highly dependent on coexisting mutations in epigenetic regulators. However, the combination of AZA + crenolanib effectively eliminated FLT3-ITD+ LIC irrespective of additional mutations in NPM1, DNMT3A or TET2.

2017-04-03 | GSE86021 | GEO

Azacitidine treated AML cells reveals highly variable cell surface proteome remodeling [Affymetrix]

Project description:Myelodysplastic syndromes (MDS) and acute myeloid leukemia (AML) are diseases of abnormal hematopoietic differentiation with aberrant epigenetic alterations. Azacitidine (AZA) is a DNA methyltransferase inhibitor (DNMTi) widely used to treat MDS and AML, yet the impact of AZA on the cell surface proteome has not been defined. To identify potential therapeutic targets for use in combination with AZA in AML patients, we investigated the effects of AZA treatment on four AML cell lines representing different stages of differentiation. The effect of AZA treatment on these cell lines was characterized at three levels: the DNA methylome, the transcriptome, and the cell surface proteome. Untreated AML cell lines showed substantial overlap at all three omics level; however, while AZA treatment globally reduced DNA methylation in all cell lines, changes in the transcriptome and surface proteome were subtle and differed among the cell lines. Transcriptome analysis identified five commonly upregulated coding genes upon AZA treatment in all four cell lines, TRPM4 being the only gene encoding a surface protein, and surface proteomics analysis found no commonly regulated proteins. Gene Set Enrichment Analysis (GSEA) of differentially-regulated RNA and surface proteins showed a decrease in metabolism pathways and an increase in immune defense response pathways. As such, AZA treatmentled to diverse effects at the individual gene and protein level but converged to common responses at the pathway level. Given the heterogeneous responses in the four cell lines, the potential therapeutic strategies for AML in combinations with AZA are discussed.

2018-12-01 | GSE123207 | GEO

Azacitidine treated AML cells reveals highly variable cell surface proteome remodeling [Illumina]

2018-11-30 | GSE123140 | GEO

Gene expression changes induced by hypomethylating agent, Azacitidine (AZA) ; IDH1 inhibitor, BAY1436032 (BAY) and combination of BAY and AZA in sorted human (CD45+) cells from bone marrow of IDH1mut Patient derived Xenotransplantation mice model.

Project description:Mutations in the enzymes IDH1 and IDH2 have been identified in a wide variety of tumors like glioma, chondrosarcoma, thyroid cancer, lymphoma, melanoma, and in acute myeloid leukemia. Mutated IDH1/2 produces the metabolite 2-hydroxyglutarate (2HG), which interferes with epigenetic regulation of gene expression, and thus may promote tumorigenesis. Data for IDH1 inhibitors show that 30-40% of AML patients respond to monotherapy with a median duration of response of 8 months, suggesting that IDH1 inhibitors should be combined with other agents to improve efficacy. BAY 1436032 (BAY) is an oral pan-mutant IDH1 inhibitor currently undergoing phase 1 clinical trials. 5-Azacitidine (AZA) is a hypomethylating agent and can activate key epigenetically silenced pathways in AML cells, leading to an arrest of AML cell proliferation.

2019-12-31 | GSE122428 | GEO

Crenolanib in combination with azacitidine abrogates stromal protection and survival of leukemia-initiating cells in FLT3-ITD+ AML

Project description:Crenolanib in combination with azacitidine abrogates stromal protection and survival of leukemia-initiating cells in FLT3-ITD+ AML

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CITE-seq (cellular indexing of transcriptomes and epitopes by sequencing) of paired diagnosis and relapse specimens from acute myeloid leukemia (AML) patients treated with venetoclax plus azacitidine

Project description:To understand relapse mechanisms related to AML patients treated with venetoclax plus azacitidine therapy, we performed CITE-seq on paired diagnosis and relapse specimens from an AML patient treated with the therapy.

2020-01-24 | GSE143363 | GEO

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