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Effect of loss of Jmjd1c on H3K9me2 level across the genome

ABSTRACT: Analysis of H3K9me2 level in MLL-AF9 leukemia cells upon deletion of Jmjd1c. Jmjd1c has been shown to be a H3K9me1/2 demethylase and these results provide insight into its role in MLL-Af9 leukemia

ORGANISM(S): Mus musculus

PROVIDER: GSE75577 | GEO | 2016/06/09

SECONDARY ACCESSION(S): PRJNA304615

REPOSITORIES: GEO

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ChIP-seq of histone marks H3K36, H3K27, and H3K9 in JMJD1C knockout or mutated MLL-AF9 leukemia cells

Project description:We performed genome-wide profiling of H3K9me3, H3K9me1, H3K27me3, and H3K36me3 by ChIP-seq in JMJD1C knockout or mutated MLL-AF9 leukemia cells. For ChIP-seq in JMJD1C mutated cells, we transduced sgRNA targeting the zinc finger, jumonji domain of JMJD1C or Renilla control and sorted on day 6 for GFP (MLL-AF9) Tdtomato (sgRNA) double positive cells. For ChIP-seq in JMJD1C knockout cells, we transduced Jmjd1c flox/flox MLL-AF9 leukemia cells with CRE TdTomato and sorted on day 6 for GFP (MLL-AF9) Tdtomato (CRE) double positive cells. These cells were subjected to ChIP-seq analysis with either H3K27me3, H3K9me3, H3K9me1 (JMJD1C knockout cells) or H3K36me3 (both knockout and mutated cells) antibody. We found increased H3K36me3 level at promoters of differentially expressed genes between control and JMJD1C loss or mutated leukemia cells.

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Effect of loss of Jmjd1c on MLL-AF9 leukemia

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shRNA Screening Identifies JMJD1C as being required for Leukemia Maintenance (Agilent)

Project description:We used a mouse model of human AML induced by the MLL-AF9 fusion oncogene, and an epigenetic shRNA library to screen for novel potential drug targets. One of the best candidate drug targets identified in these screens was Jmjd1c. Depletion of Jmjd1c impairs growth and colony formation of mouse MLL-AF9 cells in vitro, as well as establishment of leukemia after transplantation. Depletion of JMJD1C impairs expansion and colony formation of human leukemic cell lines, with the strongest effect observed in the MLL-rearranged ALL cell line, SEM. In both mouse and human leukemic cells, the growth defect upon JMJD1C depletion appears to be primarily due to increased apoptosis, which implicates JMJD1C as a potential therapeutic target in leukemia. To assess the effect of JMJD1C depletion on transcription, we compared the transcriptome of shJMJD1C- and shScr-transduced mouse MLL-AF9 transformed cells 48h after infection. A total of 451 transcripts were detected as changing between the two conditions (FDR<0.25)

2014-01-23 | E-GEOD-54311 | biostudies-arrayexpress

shRNA Screening Identifies JMJD1C as being required for Leukemia Maintenance

2013-08-22 | GSE50048 | GEO

shRNA Screening Identifies JMJD1C as being required for Leukemia Maintenance (Agilent)

2014-01-23 | GSE54311 | GEO

shRNA Screening Identifies JMJD1C as being required for Leukemia Maintenance

Project description:We used a mouse model of human AML induced by the MLL-AF9 fusion oncogene, and an epigenetic shRNA library to screen for novel potential drug targets. One of the best candidate drug targets identified in these screens was Jmjd1c. Depletion of Jmjd1c impairs growth and colony formation of mouse MLL-AF9 cells in vitro, as well as establishment of leukemia after transplantation. Depletion of JMJD1C impairs expansion and colony formation of human leukemic cell lines, with the strongest effect observed in the MLL-rearranged ALL cell line, SEM. In both mouse and human leukemic cells, the growth defect upon JMJD1C depletion appears to be primarily due to increased apoptosis, which implicates JMJD1C as a potential therapeutic target in leukemia. To assess the effect of JMJD1C depletion on transcription, we compared the transcriptome of shJMJD1C- and shScr-transduced SEM cells soon after induction of shRNA expression by addition of IPTG to the growth medium. To ensure detecting early changes, 48h was selected as the earliest timepoint displaying JMJD1C depletion and detectable phenotype as monitored by PARP and Caspase 3 cleavage. These observations were consistent across triplicate samples. A total of 138 transcripts were detected as changing between the two conditions (FDR<0.05)

2013-08-22 | E-GEOD-50048 | biostudies-arrayexpress

Single-cell sequencing of JMJD1C Jumonji domain mutated MLL-AF9 Leukemia cells

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Genome-wide maps of H3K9me2 modification in wild type and jmjd1c B KO Activated B cells.

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2022-07-08 | GSE195462 | GEO

RNA expression analysis upon JMJD1C depletion

Project description:The AML1-ETO fusion protein, a transcription factor generated by the t(8;21) translocation in acute myeloid leukaemia (AML), dictates a leukemic program by increasing self-renewal and inhibiting differentiation. Here we demonstrate that the histone demethylase JMJD1C functions as a co-activator for AML1-ETO and is required for its transcriptional program. JMJD1C is directly recruited by AML1-ETO to its target genes and regulates their expression by maintaining low H3K9me2 levels. Analyses in JMJD1C knockout mice also establish a JMJD1C requirement for AML1-ETOâs ability to increase proliferation. We also show a critical role for JMJD1C in the survival of multiple human AML cell lines, suggesting that it is required for leukemic programs in different AML cell types through its association with key transcription factors. Examination of RNA expression when Kasumi-1 cells are treated with control shRNA or two different JMJD1C shRNAs; in duplicate. Please note that the 'shAML1_ETO_vs_shControl.all_gene_exp.tb.txtl' was generated comparing control and shRNA treated RNA abundance-using previously published data [GSE43834; GSM1071857 and GSM1071852].

2015-11-02 | E-GEOD-63485 | biostudies-arrayexpress

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