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Gene expression changes induced by hypomethylating agent, Azacitidine (AZA) IDH1 inhibitor, BAY1436032 (BAY) and sequential and simultaneous combination of BAY and AZA in in vitro treated human (CD45+) cells isolated from the bone marrow of IDH1mut

ABSTRACT: Gene expression changes induced by hypomethylating agent, Azacitidine (AZA) IDH1 inhibitor, BAY1436032 (BAY) and sequential and simultaneous combination of BAY and AZA in in vitro treated human (CD45+) cells isolated from the bone marrow of IDH1mut

PROVIDER: PRJNA610784 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR11249930_1.fastq.gz	Fastqsanger.gz
	SRR11249930_2.fastq.gz	Fastqsanger.gz
	SRR11249931_1.fastq.gz	Fastqsanger.gz
	SRR11249931_2.fastq.gz	Fastqsanger.gz
	SRR11249932_1.fastq.gz	Fastqsanger.gz

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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.

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DNA methylation changes induced by hypomethylating agent, Azacitidine (AZA); IDH1 inhibitor, BAY1436032 (BAY) and sequential and simultaneous combination of BAY and AZA in in vitro treated human (CD45+) cells isolated from the bone marrow of IDH1mut

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Gene expression changes induced by hypomethylating agent, Azacitidine (AZA); IDH1 inhibitor, BAY1436032 (BAY) and sequential and simultaneous combination of BAY and AZA in in vitro treated human (CD45+) cells isolated from the bone marrow of IDH1mut

2020-05-25 | GSE146503 | 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: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.

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DNA methylation changes induced by hypomethylating agent, Azacitidine (AZA) IDH1 inhibitor, BAY1436032 (BAY) and sequential and simultaneous combination of BAY and AZA in in vitro treated human (CD45+) cells isolated from the bone marrow of IDH1mut

Project description:DNA methylation changes induced by hypomethylating agent, Azacitidine (AZA) IDH1 inhibitor, BAY1436032 (BAY) and sequential and simultaneous combination of BAY and AZA in in vitro treated human (CD45+) cells isolated from the bone marrow of IDH1mut

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DNA methylation and gene expression changes induced by hypomethylating agent, Azacitidine (AZA), BAY1436032 (BAY) and sequential and simultaneous combination of BAY and AZA in in vitro treated human (CD45+) cells isolated from the bone marrow of IDH1mut

Project description:DNA methylation and gene expression changes induced by hypomethylating agent, Azacitidine (AZA), BAY1436032 (BAY) and sequential and simultaneous combination of BAY and AZA in in vitro treated human (CD45+) cells isolated from the bone marrow of IDH1mut

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SUMO pulldown proteomics Namalwa 5-Aza-2' deoxycytidine treatment

Project description:Combination therapies targeting malignancies aim to increase treatment efficacy and reduce toxicity. Hypomethylating drug 5-Aza-2’-deoxycytidine (5-Aza-2’) enhances transcription of tumor suppressor genes and induces replication errors via entrapment of DNMT1. Post-translational modification by SUMO plays major roles in the DNA damage response and is required for degradation of entrapped DNMT1. Here, we combine SUMOylation inhibitor TAK981 and DNA-hypomethylating agent 5-Aza-2’ to improve treatment of MYC driven hematopoietic malignancies, since MYC overexpressing tumors are sensitive to SUMOylation inhibition. We studied the classical MYC driven malignancy Burkitt lymphoma, as well as diffuse large B-cell lymphoma (DLBCL) with and without MYC translocation. SUMO inhibition prolonged the entrapment of DNMT1 to DNA, resulting in DNA damage. An increase in DNA damage was observed in cells co-treated with TAK981 and 5-Aza-2’. Both drugs synergized to reduce cell proliferation in vitro in a B cell lymphoma cell panel, including Burkitt lymphoma and DLBCL. In vivo experiments combining TAK981 (25 mg/kg) and 5-Aza-2’ (2.5 mg/kg) showed a significant reduction in outgrowth of Burkitt lymphoma in an orthotopic xenograft model. In contrast, single dosing of TAK981 was ineffective and single dosing of 5-Aza-2’ only led to a modest outgrowth reduction. TAK981 and 5-Aza-2’ synergize to reduce B cell Lymphoma outgrowth in vitro and in vivo. SUMOylation is a key-player in the repair of DNA damage, hence upon TAK981 treatment the repair of DNA damage induced by 5-Aza-2’ treatment is impaired. Our results demonstrate the potential of tailored combination of drugs, based on insight in molecular mechanisms, to improve the efficacy of cancer therapies.

2023-03-17 | PXD038620 | Pride

SUMO pulldown, U2OS, proteomics, 4 hour 20 hour 5-Aza-2' deoxycytidine treatment

2023-03-17 | PXD038617 | Pride

Project description:This SuperSeries is composed of the SubSeries listed below.

2020-05-25 | GSE146504 | GEO

Identification of genes that may predict response to azacitidine treatment.

Project description:Azacitidine (AZA) is a hypomethylating drug used to treat disorders associated with myelodysplasia and related neoplasms. Approximately 50% of patients do not respond to AZA and have very poor outcomes. It is of great interest to identify predictive biomarkers for AZA responsiveness. Therefore, we searched for specific genes whose expression level was associated with response status.Using microarrays, we analyzed gene expression patterns in bone marrow CD34+ cells from 32 patients with myelodysplastic syndromes, chronic myelomonocytic leukemia, and acute myeloid leukemia with myelodysplasia-related changes before AZA therapy. Total RNA was isolated from bone marrow CD34+ cells obtained from myelodysplasia and related neoplasms patients who underwent treatment with 5-azacytidine (AZA, Vidaza). Using Illumina Human HT-12 v. 4 microarrays, we assayed gene expression profiles in patient CD34+ cells before AZA treatment in order to collect basic data for search for markers of the prediction of therapy response.

2016-02-10 | E-GEOD-77750 | biostudies-arrayexpress

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