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Regulation of genes expression in photoreceptor and other retinal cells by histone H3 tri-methylation at K27 during retinal development

ABSTRACT: To analyze roles of histone H3 tri-methylation for transcription in retina, global transcription patterns of retinal cells of Ezh2, H3K27 methylase, knockout mice and control were examined

ORGANISM(S): Mus musculus

PROVIDER: GSE71463 | GEO | 2016/07/28

SECONDARY ACCESSION(S): PRJNA291287

REPOSITORIES: GEO

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Human retinal and photoreceptor gene expression profile

Project description:Comparison of gene expression profile between an 96 day human retina and photoreceptors present around the same time. We used the Affymetrix Human Gene 1.0 ST array to compare their expression profiles. Retina from 96 and 90 day human retina was isolated and either directly used for RNA extraction or cultured with IRBP-GFP lentivirus and then the GFP expressing cells were FACS out and used for RNA extraction.

2010-10-05 | E-GEOD-18487 | biostudies-arrayexpress

ChIP-seq profiling of H3K27 tri-methylation in Ezh2-deficient and control murine lung epithelium at day E16.5

Project description:Epithelial (CD31-CD45-EpCAM+) lung cells were derived by FACS from ShhCre;Ezh2fl/fl and control ShhCre;Ezh2fl/+ mouse embryos at day E16.5 (2 biological replicates per genotype). Chromatin from each of the replicates was immunoprecipitated with H3K27me3 antibody (Millipore #07-449) and subjected to NGS library preparation using TruSeq Nano DNA Sample Preparation Kit (Illumina). Completed libraries from different samples were sequenced on HiSeq 2500 TruSeq with SBS Kit v3 - HS reagents (Illumina) as 100 bp single end reads at the Australian Genome Research Facility. ChIP-seq profiles of H3K27 tri-methylation from Ezh2 deficient and control lung epithelium (2 replicates per genotype).

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Human retinal and photoreceptor gene expression profile

2010-10-05 | GSE18487 | GEO

PRC2.1 and PRC2.2 synergize to co-ordinate H3K27 tri-methylation.

Project description:PRC2.1 and PRC2.2 synergize to co-ordinate H3K27 tri-methylation.

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Physical and functional screening of Polycomb Repressor Complex 2 highlights novel regulators of histone H3 lysine 27 methylation status

Project description:Polycomb Repressor Complex 2 (PRC2) is a multi-protein epigenetic regulator complex that plays critical roles in early development and tissue differentiation. The complex catalyzes the methylation of histone H3 lysine 27 (H3K27). The tri-methyl state (H3K27me3) is well studied as an agent of gene repression, but more recently distinct roles for the mono- and di-methyl states have been discovered. In order to more fully understand how PRC2-associated factors might influence H3K27 status, we screened for physical associations of PRC2 subunits. Knockdown of these factors was used to produce functional interaction maps focused on H3K27 methylation, including proteins that have positive and negative effects on the levels each histone mark.

2018-04-05 | PXD005381 | Pride

RNA-Seq and ChIP-Seq gene profiling of retinal ganglion cells in Math5Cre-driven Knockout of Ezh2 and G9a in murine retinal ganglion cells at P0

Project description:Epigenetic mark deposition during embryonic development contribute to postnatal homeostasis and tissue stability. Previously, we found out that Ezh2 contributes critically to the function and postnatal cell survival in bipolar cells but not in retinal ganglion cells in the retina. (Yan et al. Postnatal onset of retinal degeneration by loss of embryonic Ezh2 repression of Six1. Sci Report. doi:10.1038/srep33887; (Cheng L, Wong LJ, Yan N, Han RC et al. Ezh2 does not mediate retinal ganglion cell homeostasis or their susceptibility to injury. PLoS One 2018;13(2):e0191853.). In this study, we used RNA-seq to define up- and down regulated genes in both Ezh2 and G9a deficient (Math5Cre; Ezh2f/fG9af/+; dKO) retinal ganglion cells (RGC) to evaluate the hypothesis of Ezh2 and G9a interaction that has been discussed in other tissues but in the retina. ChIP-Seq was applied to evaluate H3K27me3 histone marks in retinal ganglion cells in wild type (WT), Ezh2 (Math5Cre; Ezh2-/-, sKO) and combined G9a-Ezh2 (Math5Cre; G9a+/-Ezh2-/-, dKO) knockout mutant mice at P1.

2022-07-26 | GSE136360 | GEO

Differential expression of genes in photoreceptor and other retinal cells in developing retina

Project description:To analyze cell lineage specific global transcriptional changes during retinogenesis, we sequenced mRNA from developing retina fractioned to Cd73+ photoreceptors and Cd73- other cells, in addition to the whole retina at embryonic period.

2016-07-28 | GSE71462 | GEO

An Ezh2 and Ezh1 dual inhibitor, UNC1999, re-shapes the landscape of H3K27me3 versus H3K27ac in MLL-AF9-transformed murine leukemia

Project description:Ezh2 and EZH1 are histone H3 lysine 27 (H3K27)-specific methyltransferases. Their hyperactive mutations and overexpression were found in cancer including various hematological malignancies. UNC1999 is a highly selective inhibitor for both enzymes. It suppresses H3K27 tri- and di-methylation globally and inhibits growth of MLL-rearranged acute leukemia. Here we performed ChIP-Seq to profile how UNC1999 affects distribution of H3K27me3 and its antagonizing H3K27ac in MLL-AF9-immortalized leukemia cells. We also performed ChIP-seq of SUZ12, an essential common cofactor of EZH2 and EZH1 following compound treatments. We treated MLL-AF9 transformed murine leukemia cells with DMSO, UNC1999 or UNC2400 (an inactive analog compound of UNC1999). Cells were then collected and used for ChIP-Sequencing of Input, H3K27me3, SUZ12, and H3K27ac.

2014-10-30 | E-GEOD-62437 | biostudies-arrayexpress

An Ezh2 and Ezh1 dual inhibitor, UNC1999, re-shapes the landscape of H3K27me3 versus H3K27ac in MLL-AF9-transformed murine leukemia

2014-10-30 | GSE62437 | GEO

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