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Gene expression profiles of MLL-AF9 leukemia cells treated with FF-10501-01

ABSTRACT: Gene expression profiles of MLL-AF9 leukemia cells treated with FF-10501-01

PROVIDER: PRJNA885483 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR21756240_1.fastq.gz	Fastqsanger.gz
	SRR21756240_2.fastq.gz	Fastqsanger.gz
	SRR21756241_1.fastq.gz	Fastqsanger.gz
	SRR21756241_2.fastq.gz	Fastqsanger.gz
	SRR21756242_1.fastq.gz	Fastqsanger.gz

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Gene expression profiles of MLL-AF9 leukemia cells treated with FF-10501-01

Project description:To assess the molecular changes induced by IMPDH inhibition in MLL-AF9 leukemia, we examined gene expression profiles of vehicle- or FF-10501-01-treated MLL-AF9 cells by RNA-seq.

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Gene expression profiles of MLL-AF9 leukemia cells treated with DS-5272

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Gene expression profiles of newly generated MLL-AF9 leukemia cells and aggressive MLL-AF9 leukemia cells generated through serial transplantations.

Project description:Immunogenicity of acute myeloid leukemia (AML) keeps changing during tumor evolution, showing a trend that the aggressive AMLs generate through serial transplantations are susceptible to NK cell-mediated tumor suppression. To access molecular differences between the newly developed AML cells and aggressive AML cells generated through serial transplantations, we performed RNA-seq using newly generated mouse AML cells trasduced with MLL-AF9, and the aggressive MLL-AF9 cells obtained after 5 times serial transplantations in the non-irradiated recipient mice.

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Effect of loss of Jmjd1c on MLL-AF9 leukemia

Project description:Analysis of gene expression profile of MLL-AF9 leukemia cells 6 days after loss of Jmjd1c. Loss of Jmjd1c induces differentiation and apoptosis in MLL-AF9 leukemia cells. These results provide insight into the role of Jmjd1c in MLL leukemia.

2016-06-09 | GSE75576 | GEO

RNA-seq profiling of murine Tet-off MLL-AF9; NRAS acute myeloid leukemia at different timepoints upon doxycycline-induced MLL-AF9 down-regulation.

Project description:Using an acute myeloid leukemia (AML) mouse model driven by tet-regulated MLL-AF9 (fusion between the gene MLL1 (KMT2A/MLL) and MLLT3 (AF9)) co-expressed with oncogenic NRASG12D (Tet-off MLL-AF9), we investigated the effect of modulating the expression of the MLL-AF9 fusion oncogene on the transcriptome and proteome of established murine AML. Treatment in vitro or in vivo of these Tet-off MLL-AF9 AMLs with doxycycline (DOX) results in the efficient down-regulation of the expression of the driver oncogene MLL-AF9. RNA sequencing analysis was performed on primary Tet-Off MLL-AF9 AML cells obtained from the spleen of leukemic animals and cultured in vitro for either 2 or 4 days in the presence of doxycycline (1μg/ml) (DOX= down-regulation of MLL-AF9) or left untreated (UT).

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RNA sequencing expression analysis of murine Tet-off MLL-AF9;NRAS acute myeloid leukemia cells over-expressing Id2 and upon MLL-AF9 withdrawal

2016-06-29 | GSE68462 | GEO

Expression data from murine Tet-off MLL-AF9/Ras acute myeloid leukemia cell lines following withdrawal of MLL-AF9

Project description:To explore oncogene addiction programs in a genetically defined leukemia context we developed an AML mouse model driven by a conditional MLL-AF9 allele together with oncogenic Ras, which enabled us to examine the consequences of MLL-AF9 inhibition in established disease. In order to produce a tightly regulated system that was easy to monitor, we constructed two retroviral vectors containing dsRed-linked MLL-AF9 under control of a tetracycline response element promoter, and KrasG12D or NrasG12D linked to the “Tet-off” tet-transactivator, which activates TRE expression in a doxycycline repressible manner. Leukemias were generated by retroviral cotransduction of both vectors into hematopoietic stem and progenitor cells, which were transplanted into syngeneic mice. Cells harboring both constructs induced aggressive myelomonocytic leukemia. Five independent primary leukemia cell lines were established from bone marrow of terminal mice. Treatment of these lines with doxycycline rapidly turned off MLL-AF9 expression, and induced terminal myeloid differentiation and complete disease remission in vivo. To identify molecular mechanisms underlying addiction to MLL-AF9, we analyzed global gene expression changes following doxycycline-induced suppression of MLL-AF9. Independent primary acute myeloid leukemia lines induced by cotransduction of Tet-off MLL-AF9 together with either KrasG12D or NrasG12D were grown in culture and treated with doxycycline for 6 days to inactivate MLL-AF9 expression. In addition, primary acute myeloid leukemia lines with constitutive MLL-AF9 and KrasG12D were included to control for the effects of doxycycline. Untreated and treated cells were harvested for RNA extraction and hybridization to Affymetrix arrays.

2011-08-04 | E-GEOD-30746 | biostudies-arrayexpress

Expression data from murine Tet-off MLL-AF9/Ras acute myeloid leukemia cell lines following withdrawal of MLL-AF9

2011-08-05 | GSE30746 | GEO

RNA sequencing expression analysis of murine Tet-off MLL-AF9;NRAS acute myeloid leukemia cells over-expressing Id2 and upon MLL-AF9 withdrawal

Project description:We investigated the role of the transcriptional regulator Id2 in the context of MLL-rearranged acute myeloid leukemia (AML). Using an AML mouse model driven by tet-regulated MLL-AF9 co-expressed with oncogenic NRASG12D (Tet-off MLL-AF9), we demonstrated that MLL-AF9 regulates the E protein pathway by suppressing Id2, while activating the expression of its target E2-2. Moreover, we found that Id2 over-expression in Tet-Off MLL-AF9 AML cells in vitro partially phenocopies MLL-AF9 depletion and results inhibition of leukemia growth, loss of leukemia stem cell-associated gene expression pattern and induction of differentiation. To compare gene expression changes associated with enforced Id2 expression and MLL-AF9 withdrawal, RNA sequencing analysis was performed on Tet-off MLL-AF9 cells transduced with an Id2 over-expressing or a control vector, or upon MLL-AF9 dox-inducible knock-down. Primary AMLs driven by Tet-off inducible MLL/AF9 expression linked to dsRED reporter, in association with oncogenic NRASG12D (Tet-off MLL-AF9) were generated by reconstituting lethally irradiated congenic mice with foetal liver cells co-transduced with a Tet-Off-MLL-AF9-dRED retroviral vector and a second vector co-expressing NRASG12D together with the Tet-Off responsive transcriptional activator. RNA sequencing analysis sequencing analysis was performed on Tet-Off MLL-AF9/dsRED+ AML cells treated in vitro with doxycycline (DOX) for 4 days to inactivate MLL-AF9 expression or left untreated (UT). For the Id2 over-expression experiment, Tet-Off MLL-AF9/dsRED+ AML cells were transduced in vitro with an Id2-GFP or a control-GFP retroviral vector. Viable GFP-positive cells were FACS-sorted 2 days after transduction and used for RNA sequencing analysis.

2016-06-29 | E-GEOD-68462 | biostudies-arrayexpress

MiR-150 Suppresses MLL-AF9 Associated Leukemia Through Simultaneously Targeting Multiple Oncogenes

Project description:This study report that miR-150, a key hematopoietic regulatory microRNA (miRNA) and one of the most downregulated miRNAs in MLL-associated leukemias, acts as a tumor suppressor to block the leukemogenic potency of leukemic stem cells. When expression of miR-150 was restored, a significantly suppressed leukemic stem cell potency of MLL-AF9 cells was observed both in vivo and in vitro. To investigate the tumor suppressive function of miR-150 in MLL-AF9 cells, we isolated three batches of MLL-AF9 cells infected with MDH empty vector or MDH-miR-150 expression retrovirus. Total RNA were extracted and applied for Agilent array analysis. Gene profiling analysis demonstrated that elevated miR-150 altered various aspects of gene expression patterns in MLL-AF9 cells, including stem cell signatures, cancer pathways, and cell survival. miR-150-MLL-AF9 and MDH-MLL-AF9 isolated cells were compared for gene expression patterns. Triplicates using three batches of FACS sorted cells were compared in pairs on the array. MDH-MLL-AF9 samples were labeld with Cy3 and miR-150-MLL-AF9 samples were labled with Cy5.

2011-07-19 | E-GEOD-30771 | biostudies-arrayexpress

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