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The Histone Methyltransferases MLL1 and DOT1L Cooperate with Meningioma-1 to Induce AML

ABSTRACT: This SuperSeries is composed of the SubSeries listed below.

ORGANISM(S): Mus musculus Homo sapiens

PROVIDER: GSE76750 | GEO | 2016/01/12

SECONDARY ACCESSION(S): PRJNA308486

REPOSITORIES: GEO

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The Histone Methyltransferases MLL1 and DOT1L Cooperate with Meningioma-1 to Induce AML

Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series

2016-01-12 | E-GEOD-76750 | biostudies-arrayexpress

The Histone Methyltransferases MLL1 and DOT1L Cooperate with Meningioma-1 to Induce AML [Mouse Dot1l ko RNA-seq]

Project description:Purpose: To characterize transcriptional changes associated with homozygous inactivation of Dot1l or Mll1 in MN1 driven AML Methods: We sequenced mRNA from murine LSK-cells transformed using forced expression of MN1 (MSCV-MN1-IRES-GFP), and transduced with Cre-vector to inactivate either Dot1l or Mll1. Cells were sorted for Cre-expression (pTomato fluorescent marker) or expression of an inert control vector. Results: Inactivation of either Dot1l or Mll1 in this model leads to a substantial delay or complete abrogation of leukemia development. Loss of Dot1l or Mll1 are associated with gene expression changes that have substantial overlap. In addition, genes that are downregulated follwing inactivation of Dot1l or Mll1 have substantial overlap with the gene set upregulated in MN1 transduced CMPs. Conclusions: MN1 mediated leukemogenesis is associated with a gene expression program that dependes on Mll1 and Dot1l Examination of mRNA levels between Dot1l f/f and Dot1l ko, and Mll1 f/f and Mll1 ko.

2016-01-12 | E-GEOD-76748 | biostudies-arrayexpress

The Histone Methyltransferases MLL1 and DOT1L Cooperate with Meningioma-1 to Induce AML [Mouse Mll1 ko RNA-seq]

Project description:Purpose: To characterize transcriptional changes associated with homozygous inactivation of Dot1l or Mll1 in MN1 driven AML Methods: We sequenced mRNA from murine LSK-cells transformed using forced expression of MN1 (MSCV-MN1-IRES-GFP), and transduced with Cre-vector to inactivate either Dot1l or Mll1. Cells were sorted for Cre-expression (pTomato fluorescent marker) or expression of an inert control vector. Results: Inactivation of either Dot1l or Mll1 in this model leads to a substantial delay or complete abrogation of leukemia development.Loss of Dot1l or Mll1 are associated with gene expression changes that have substantial overlap. In addition, genes that are downregulated follwing inactivation of Dot1l or Mll1 have substantial overlap with the gene set upregulated in MN1 transduced CMPs. Conclusions: MN1 mediated leukemogenesis is associated with a gene expression program that dependes on Mll1 and Dot1l Examination of mRNA levels between Dot1l f/f and Dot1l ko, and Mll1 f/f and Mll1 ko.

2016-01-12 | E-GEOD-76749 | biostudies-arrayexpress

The Histone Methyltransferases MLL1 and DOT1L Cooperate with Meningioma-1 to Induce AML [Human RNA-seq]

Project description:Purpose: To characterize transcriptional changes associated with inhibition of Dot1l in 2 inv(16) patient AML samples Methods: We sequenced mRNA from patient samples that were exposed to 5 uM EPZ004777 or DMSO control for 7 days. Results: Inhibition of Dot1l leads to gene expression changes in genes related to cell growth and cell cycle. Examination of mRNA levels between cells treated with 5 uM EPZ004777 or DMSO control

2016-01-12 | E-GEOD-76747 | biostudies-arrayexpress

The Histone Methyltransferases MLL1 and DOT1L Cooperate with Meningioma-1 to Induce AML [Mouse ChIP-seq]

Project description:Purpose: To characterize the genome-wide distribution of H3K79me2 in murine MN1 driven myeloid leukemia Methods: We performed Chip-seq for the H3K79me2 in leukemias isolated from moribund mice that had been injected with common myeloid progenitors (CMPs) transduced with MSCV-MN1-GFP Results: H3K79me2 is enriched at key loci that 1. are bound by MN1 in the data set of Heuser et al, (Cancer Cell. 2011 Jul 12;20(1):39-52.), 2. upregulated upon transduction with MN1, and lose expression upon deletion of the H3K79 methyltransferase Dot1l. Conclusions: A leukemogenic program in MN1 leukemias is marked by H3K79me2 and dependent on this mark ChIP-Seq for H3K79me2 using MN1 driven leukemias isolated from the bone marrow of moribund mice.

2016-01-12 | E-GEOD-76746 | biostudies-arrayexpress

The Histone Methyltransferases MLL1 and DOT1L Cooperate with Meningioma-1 to Induce AML [Human ChIP-seq]

Project description:Purpose: To characterize the genome-wide distribution of H3K79me2 in human leukemia cell lines treated with the Dot1l inhibitor EPZ004777 or control Methods: We performed Chip-seq for the H3K79me2 on the leukemia cell lines Mutz3, Loucy and Molm14 after 6 days in culture in the presence of 3uM EPZ004777 or DMSO control Results: H3K79me2 is completely erased from key target genes such as the HOXA cluster. Conclusions: Exposure of Mutz3, Loucy and Molm14 to 3uM EPZ004777 erases H3K79 methylation globally as well as on key loci ChIP-Seq for H3K79me2 on human leukemia cell lines exposed for 6 days to the Dot1l inhibitor EPZ004777

2016-01-12 | E-GEOD-76745 | biostudies-arrayexpress

The Histone Methyltransferases MLL1 and DOT1L Cooperate with Meningioma-1 to Induce AML [Mouse Mll1 ko RNA-seq]

Project description:Purpose: To characterize transcriptional changes associated with homozygous inactivation of Dot1l or Mll1 in MN1 driven AML Methods: We sequenced mRNA from murine LSK-cells transformed using forced expression of MN1 (MSCV-MN1-IRES-GFP), and transduced with Cre-vector to inactivate either Dot1l or Mll1. Cells were sorted for Cre-expression (pTomato fluorescent marker) or expression of an inert control vector. Results: Inactivation of either Dot1l or Mll1 in this model leads to a substantial delay or complete abrogation of leukemia development.Loss of Dot1l or Mll1 are associated with gene expression changes that have substantial overlap. In addition, genes that are downregulated follwing inactivation of Dot1l or Mll1 have substantial overlap with the gene set upregulated in MN1 transduced CMPs. Conclusions: MN1 mediated leukemogenesis is associated with a gene expression program that dependes on Mll1 and Dot1l

2016-01-12 | GSE76749 | GEO

The Histone Methyltransferases MLL1 and DOT1L Cooperate with Meningioma-1 to Induce AML [Mouse Dot1l ko RNA-seq]

2016-01-12 | GSE76748 | GEO

The Histone Methyltransferases MLL1 and DOT1L Cooperate with Meningioma-1 to Induce AML [Human RNA-seq]

2016-01-12 | GSE76747 | GEO

The Histone Methyltransferases MLL1 and DOT1L Cooperate with Meningioma-1 to Induce AML [Mouse ChIP-seq]

2016-01-12 | GSE76746 | GEO