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Expression profiling and H3K79me2 ChIP-seq in Prostate cancer cells treated with DOT1L inhibitor

ABSTRACT: Expression profiling and H3K79me2 ChIP-seq in Prostate cancer cells treated with DOT1L inhibitor

PROVIDER: PRJNA559344 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR9929780.fastq.gz	Fastqsanger.gz
	SRR9929781.fastq.gz	Fastqsanger.gz
	SRR9929782.fastq.gz	Fastqsanger.gz
	SRR9929783.fastq.gz	Fastqsanger.gz
	SRR9929776.fastq.gz	Fastqsanger.gz

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H3K79me2 ChIP-seq in prostate cancer cells

Project description:We report the application of ChIP sequencing technology for high-throughput profiling of H3K79me2 in prostate cancer cells. We generated genome-wide maps of LNCaP and PC3 cells that were treated with the specific DOT1L inhibitor EPZ004777. We find that lysine 79 dimethylation is sensitive to DOT1L inhibition in both cell lines, however the enrichment of K79 methylated peaks differed between the two cell lines.

2019-08-09 | GSE135574 | GEO

Expression profiling in Prostate cancer cells treated with DOT1L inhibitor

Project description:We performed expression profiling of prostate cancer cells, LNCaP and PC3 cells that were treated with the specific DOT1L inhibitor EPZ004777 (1uM) for 8 days. We found that unique genes were differentially expressed in both cell lines.

2019-08-09 | GSE135573 | GEO

Expression profiling in Prostate cancer cells treated with DOT1L inhibitor

Project description:Expression profiling in Prostate cancer cells treated with DOT1L inhibitor

| PRJNA559347 | ENA

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

H3K79me2 ChIP-seq in prostate cancer cells

Project description:H3K79me2 ChIP-seq in prostate cancer cells

| PRJNA559346 | ENA

Assesment of DOT1L direct targets via ChIP of H3K79me2 at E12.5 of mouse cortex

Project description:Cortical development is under control of transcriptional programs that are orchestrated by activation of key determinants such as transcription factors. But stable inheritance of temporo-spatial activity of factors influencing cell fate and regionalization in different layers is only partly understood. We report that chromatin methylation at H3K79 transmits cell fate and layering information from early to late progenitors. Activity of DOT1L, mediating H3K79 methylation, prevents premature cell cycle exit by increasing expression of genes regulating asymmetric cell division (Vangl2, Cenpj). Transcriptional programs characteristic for upper layer neurons are less active in Dot1l-deficient mice already at developmental stages that precede upper layer neuron generation. DOT1L activates expression of many key determinants such as Cux1, Cux2, Satb2 or Pou3f3. Additionally, DOT1L affects transcription of Sox family members, suggesting an evolutionary conserved mechanism. In part, DOT1L and H3K79me2 replace inactivating H3K9me3 at Sox family promoters and allow for transcriptional activation during neural differentiation.

2017-12-31 | GSE95831 | GEO

H3K79me2 ChIP-seq analysis of murine AML with DOT1L overexpressed

Project description:H3K79me2 ChIP-seq analysis of murine AML with DOT1L overexpressed

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Nucleophosmin 1 regulates H3K79me2 levels and peri-nucleolar heterochromatin organization through interaction with the methyltransferase DOT1L [ChIP-seq]

Project description:The histone methyltransferase DOT1L catalyzes methylation of H3K79 and it is highly conserved in mammals. DOT1L plays a functional role in several biological processes including cell cycle regulation, DNA repair, RNA splicing and gene expression, suggesting a complex role in chromatin organization and regulation. Such a remarkable range of functions performed by DOT1l can be the result, at least partially, of its interaction with different proteins and presence in different complexes. Here, we characterized the interaction of DOT1L with the nucleolar protein NPM1 and the impact of the DOT1L/NPM1 complex on nucleoli organization and activity. We show that i) DOT1L interacts preferentially with monomeric NPM1 in the nucleus; ii) DOT1L interaction with NPM1 is key to maintain their protein homeostasis; iii) NPM1 depletion results in H3K79me2 upregulation at chromatin remodeling genes; iv) DOT1L/NPM1 complex preserved peri-nucleolar heterochromatin organization via epigenetic mechanisms. Our findings unravel the molecular mechanisms employed by the DOT1L/NPM1 complex to maintain heterochromatin organization around the nucleoli and shed light on one aspect of the complex role of DOT1L in chromatin dynamics.

2024-01-01 | GSE223361 | GEO

DOT1L-mediated Murine Neuronal Differentiation associates with H3K79me2 Accumulation and preserves SOX2-Enhancer Accessibility

Project description:To study whether acute inhibition of DOT1L induces global chromatin states alterations, we profile and compare the transcriptome, chromatin accessibility and epigenome (H3K4me3, H3K4me1, H3K27ac, H3K27me3, H3K36me3, H3K9me3, H3K79me2) of mESC and ES-derived NPC, treated with DMSO or EPZ5676.

2020-08-01 | GSE135318 | GEO

Inhibition of DOT1L increases osteoclast fusion and resorption and aggravates bone loss

Project description:Osteoclasts are absorptive cells and play a critical role in homeostatic bone remodeling and pathological bone resorption. Emerging evidence suggests an important role for epigenetic regulation of osteoclastogenesis. In this study, we investigated the role of DOT1L, which regulates gene expression epigenetically by histone H3K79 methylation during osteoclast formation. DOT1L and H3K79me2 levels were upregulated during osteoclast differentiation. Small molecule inhibitor- (EPZ5676 or EPZ004777) or short hairpin RNA-mediated reduction in DOT1L expression promoted osteoclast differentiation and resorption. DOT1L inhibition also increased osteoclast area and accelerated bone mass reduction in a mouse ovariectomy (OVX) model of osteoporosis. DOT1L inhibitors did not alter osteoblast differentiation in vitro and in vivo. Proteomics data, together with bioinformatics analysis, revealed that DOT1L inhibition altered reactive oxygen species (ROS) generation, autophagy activation, and cell fusion-related protein expression. ROS generation increased, and autophagy activation and cell migration ability enhancement were verified subsequently by flow cytometry and transwell migration assays. DOT1L inhibition increased NFATc1 nuclear translocation and NF-κB activation and strengthend osteoclast fusion and expression of resorption-related protein CD9, and MMP9 in osteoclasts derived from RAW264.7. Our findings support a new mechanism of DOT1L-mediated H3K79me2 epigenetic regulation of osteoclast differentiation, implicating DOT1L as a new therapeutic target for osteoclast dysregulation-induced disease.

2018-01-24 | PXD006448 | Pride

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