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Genome wide mapping of histone 3 lysine 79 dimethylation in MLL-AF6 murine leukemias

ABSTRACT: We report the genome wide distribution of H3K79 dimethylation in mouse MLL-AF6 positive leukemias to assess whether this epigenetic mark drives MLL-target gene expression.

ORGANISM(S): Mus musculus

PROVIDER: GSE43062 | GEO | 2013/04/03

SECONDARY ACCESSION(S): PRJNA184352

REPOSITORIES: GEO

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Genome wide mapping of histone 3 lysine 79 dimethylation in MLL-AF6 murine leukemias

Project description:We report the genome wide distribution of H3K79 dimethylation in mouse MLL-AF6 positive leukemias to assess whether this epigenetic mark drives MLL-target gene expression. Examination of H3K79 dimethylation in bone marrow cells from sacrificed terminally ill MLL-AF6 positive leukemic mice. The retroviral MSCV-IRES-neo-MLL-AF6 construct was transduced into mouse bone marrow lineage negative Kit +, Sca + (LSK) cells and these cells were injected after G418 selection into irradiated syngenic mice to establish MLL-AF6 positive leukemias.

2013-04-03 | E-GEOD-43062 | biostudies-arrayexpress

Genome wide mapping of histone 3 lysine 79 dimethylation in MLL rearranged and control human leukemia cell lines

Project description:We report the genome wide distribution of H3K79 dimethylation in the human MLL-AF6 rearranged cell line ML2 as well as the human MOLM13 and HL60 cell lines Examination of H3K79 dimethylation in the MLL-AF6 fusion positive human leukemia cell line ML2 and control cell lines MOLM-13 and HL60. The MLL-AF6 positive ML2 cell line (obtained from DSMZ) and the cell lines HL60 and MOLM 13 were grown under standard conditions and 1 million cells were fixed/crosslinked and used for ChIP-seq with H3K79 dimethylation specific antibody Ab3594 (Abcam)

2013-04-03 | E-GEOD-43063 | biostudies-arrayexpress

Genome wide mapping of histone 3 lysine 79 dimethylation in MLL rearranged and control human leukemia cell lines

Project description:We report the genome wide distribution of H3K79 dimethylation in the human MLL-AF6 rearranged cell line ML2 as well as the human MOLM13 and HL60 cell lines

2013-04-03 | GSE43063 | GEO

Expression data from MLL-AF6 positive leukemia cells

2013-04-03 | GSE43067 | GEO

Expression data from a human MLL-AF6 positive AML cell line

Project description:The MLL gene on chromosome 11 fuses to the AF6 gene on chromosome 6 in a balanced chromosomal translocation that is characetristic of certain adult and pediatric human leukemias. We established a murine leukemia model of MLL-AF6 using the retroviral MLL-AF6 contruct in a bone marrow transplantation system. The ML2 human MLL-AF6 positive leukemia cell line was used for gene expression profiling to assess the transctiptional profile in MLL-AF6 leukemias.

2013-04-03 | GSE43068 | GEO

Genome-wide analysis of H3K79 dimethylation in MLL-AF4 leukemic bone marrow

Project description:We created a mouse model where conditional expression of physiologic levels of an Mll-AF4 fusion oncogene induces development of acute lymphoblastic (ALL) or acute myeloid leukemias (AML). ChIP-chip analysis demonstrated increased histone H3 Lysine 79 (H3K79) dimethylation that correlated with Mll-AF4 associated gene expression profiles in murine ALLs, and in human MLL-rearranged leukemias. In addition, human MLL-rearranged ALLs can be distinguished from other ALLs by their genome-wide H3K79 methylation profiles. Keywords: Cell type comparison

2008-11-04 | GSE12362 | GEO

Expression data from a human MLL-AF6 positive AML cell line

2013-04-03 | E-GEOD-43068 | biostudies-arrayexpress

Expression data from MLL-AF6 positive leukemia cells

Project description:The MLL gene on chromosome 11 fuses to the AF6 gene on chromosome 6 in a balanced chromosomal translocation that is characetristic of certain adult and pediatric human leukemias. We established a murine leukemia model of MLL-AF6 using the retroviral MLL-AF6 contruct in a bone marrow transplantation system. Leukemic bone marrow cells from a sacrificed moribund mouse were thawed and RNA was extracted using TRIZOL (Invitrogen) and purified further using the RNAeasy kit (Qiagen) under standard conditions and and hybridized onto Affymetrix arrays.

2013-04-03 | E-GEOD-43067 | biostudies-arrayexpress

Genome-wide analysis of H3K79 dimethylation in normal and MLL-AF4 leukemic pre-B cells

2008-11-04 | GSE12361 | GEO

The basic helix-loop-helix transcription factor SHARP1 is an oncogenic driver in MLL-AF6 Acute Myelogenous Leukemia

Project description:Acute Myeloid Leukemia (AML) with MLL gene rearrangements demonstrate unique gene expression profiles driven by MLL-fusion proteins. Here, we identify the circadian clock transcription factor SHARP1 as a novel oncogenic target in MLL-AF6 AML, which has the worst prognosis among all subtypes of MLL rearranged AMLs. SHARP1 is expressed solely in MLL-AF6 AML, and its expression is regulated directly by MLL-AF6 / DOT1L. Suppression of SHARP1 induces robust apoptosis of human MLL-AF6 AML cells. Genetic deletion in mice delays the development of leukemia and attenuated leukemia-initiating potential, while sparing normal hematopoiesis. Mechanistically, SHARP1 binds to transcriptionally active chromatin across the genome and activates genes critical for cell survival as well as key oncogenic targets of MLL-AF6. Our findings demonstrate the unique oncogenic role for SHARP1 in MLL-AF6 AML.

2018-04-26 | GSE95511 | GEO

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