Diagenode

H3K27me3 (C15410069)

29 publications found.

Genomic imprinting of Xist by maternal H3K27me3
Published: September, 2017

Abstract: Maternal imprinting at the Xist gene is essential to achieve paternal allele-specific imprinted X-chromosome inactivation (XCI) in female mammals. However, the mechanism underlying Xist imprinting is unclear. Here we show that the Xist locus is co...
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Deciphering the role of Polycomb Repressive Complex 1 (PRC1) variants in regulating the acquisition of flowering competence in Arabidopsis.
Published: April, 2015

Abstract: Polycomb Group (PcG) proteins play important roles in regulating developmental phase transitions in plants; however, little is known about the role the PcG machinery in regulating the transition from juvenile to adult phase. Here, we show that Ara...
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An ultra-low-input native ChIP-seq protocol for genome-wide profiling of rare cell populations.
Published: January, 2015

Abstract: Combined chromatin immunoprecipitation and next-generation sequencing (ChIP-seq) has enabled genome-wide epigenetic profiling of numerous cell lines and tissue types. A major limitation of ChIP-seq, however, is the large number of cells required t...
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Ultra-low-input native ChIP-seq for rare cell populations
Published: January, 2015

Abstract: Combined chromatin immunoprecipitation and next-generation sequencing (ChIP-seq) has enabled genome-wide epigenetic profiling of numerous cell lines and tissue types. A major limitation of ChIP-seq, however, is the large number of cells required t...
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Exposure to Hycanthone alters chromatin structure around specific gene functions and specific repeats in Schistosoma mansoni
Published: June, 2014

Abstract: Schistosoma mansoni is a parasitic plathyhelminth responsible for intestinal schistosomiasis (or bilharziasis), a disease affecting 67 million people worldwide and causing an important economic burden. The schistosomicides hycanthone, and its late...
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Targeting Polycomb to Pericentric Heterochromatin in Embryonic Stem Cells Reveals a Role for H2AK119u1 in PRC2 Recruitment.
Published: June, 2014

Abstract: The mechanisms by which the major Polycomb group (PcG) complexes PRC1 and PRC2 are recruited to target sites in vertebrate cells are not well understood. Building on recent studies that determined a reciprocal relationship between DNA methylation ...
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Variant PRC1 Complex-Dependent H2A Ubiquitylation Drives PRC2 Recruitment and Polycomb Domain Formation.
Published: June, 2014

Abstract: Chromatin modifying activities inherent to polycomb repressive complexes PRC1 and PRC2 play an essential role in gene regulation, cellular differentiation, and development. However, the mechanisms by which these complexes recognize their target si...
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Ezh2 regulates transcriptional and posttranslational expression of T-bet and promotes Th1 cell responses mediating aplastic anemia in mice.
Published: June, 2014

Abstract: Acquired aplastic anemia (AA) is a potentially fatal bone marrow (BM) failure syndrome. IFN-γ-producing Th1 CD4(+) T cells mediate the immune destruction of hematopoietic cells, and they are central to the pathogenesis. However, the molecular even...
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Nitric oxide-induced neuronal to glial lineage fate-change depends on NRSF/REST function in neural progenitor cells.
Published: May, 2014

Abstract: Degeneration of CNS tissue commonly occurs during neuroinflammatory conditions, such as multiple sclerosis (MS) and neurotrauma. During such conditions, neural stem/progenitor cell (NPC) populations have been suggested to provide new cells to dege...
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Polycomb binding precedes early-life stress responsive DNA methylation at the Avp enhancer.
Published: March, 2014

Abstract: Early-life stress (ELS) in mice causes sustained hypomethylation at the downstream Avp enhancer, subsequent overexpression of hypothalamic Avp and increased stress responsivity. The sequence of events leading to Avp enhancer methylation is present...
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Epigenetics of prostate cancer: distribution of histone H3K27me3 biomarkers in peri-tumoral tissue.
Published: March, 2014

Abstract: Prostate cancer is the second most common cause of cancer and the sixth leading cause of cancer fatalities in men world- wide (Ferlay et al., 2010). Genetic abnormalities and mutations are primary causative factors, but epigenetic mechanisms are n...
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Epigenomic alterations define lethal CIMP-positive ependymomas of infancy.
Published: February, 2014

Abstract: Ependymomas are common childhood brain tumours that occur throughout the nervous system, but are most common in the paediatric hindbrain. Current standard therapy comprises surgery and radiation, but not cytotoxic chemotherapy as it does not furth...
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SUPT6H controls estrogen receptor activity and cellular differentiation by multiple epigenomic mechanisms.
Published: January, 2014

Abstract: The estrogen receptor alpha (ERα) is the central transcriptional regulator of ductal mammary epithelial lineage specification and is an important prognostic marker in human breast cancer. Although antiestrogen therapies are initially highly effect...
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A key role for EZH2 in epigenetic silencing of HOX genes in mantle cell lymphoma.
Published: December, 2013

Abstract: The chromatin modifier EZH2 is overexpressed and associated with inferior outcome in mantle cell lymphoma (MCL). Recently, we demonstrated preferential DNA methylation of HOX genes in MCL compared with chronic lymphocytic leukemia (CLL), despite t...
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Targeted disruption of hotair leads to homeotic transformation and gene derepression.
Published: October, 2013

Abstract: Long noncoding RNAs (lncRNAs) are thought to be prevalent regulators of gene expression, but the consequences of lncRNA inactivation in vivo are mostly unknown. Here, we show that targeted deletion of mouse Hotair lncRNA leads to derepression of h...
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VAL- and AtBMI1-Mediated H2Aub Initiate the Switch from Embryonic to Postgerminative Growth in Arabidopsis.
Published: July, 2013

Abstract: Plant B3-domain transcription factors have an important role in regulating seed development, in particular seed maturation and germination [1]. Among the B3 factors, the AFL (ABSCISIC ACID INSENSITIVE3 [ABI3], FUSCA3 [FUS3], and LEAFY COTYLEDON2 [...
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Passaging Techniques and ROCK Inhibitor Exert Reversible Effects on Morphology and Pluripotency Marker Gene Expression of Human Embryonic Stem Cell Lines.
Published: July, 2013

Abstract: Human embryonic stem cells (hESCs) are known for their potential usage in regenerative medicine, but also for handling sensitivity. Much effort has been put into optimizing the culture methods of hESCs. It has been shown that the use of Rho-associ...
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Disease-Related Growth Factor and Embryonic Signaling Pathways Modulate an Enhancer of TCF21 Expression at the 6q23.2 Coronary Heart Disease Locus.
Published: July, 2013

Abstract: Coronary heart disease (CHD) is the leading cause of mortality in both developed and developing countries worldwide. Genome-wide association studies (GWAS) have now identified 46 independent susceptibility loci for CHD, however, the biological and...
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Expression of a large LINE-1-driven antisense RNA is linked to epigenetic silencing of the metastasis suppressor gene TFPI-2 in cancer.
Published: May, 2013

Abstract: LINE-1 retrotransposons are abundant repetitive elements of viral origin, which in normal cells are kept quiescent through epigenetic mechanisms. Activation of LINE-1 occurs frequently in cancer and can enable LINE-1 mobilization but also has retr...
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Histone lysine trimethylation or acetylation can be modulated by phytoestrogen, estrogen or anti-HDAC in breast cancer cell lines.
Published: February, 2013

Abstract: AIM: The isoflavones genistein, daidzein and equol (daidzein metabolite) have been reported to interact with epigenetic modifications, specifically hypermethylation of tumor suppressor genes. The objective of this study was to analyze and understa...
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Epigenetic Regulation of Nestin Expression During Neurogenic Differentiation of Adipose Tissue Stem Cells.
Published: December, 2012

Abstract: Adipose-tissue-derived stem cells (ASCs) have received considerable attention due to their easy access, expansion potential, and differentiation capacity. ASCs are believed to have the potential to differentiate into neurons. However, the mechanis...
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New partners in regulation of gene expression: the enhancer of trithorax and polycomb corto interacts with methylated ribosomal protein l12 via its chromodomain.
Published: October, 2012

Abstract: Chromodomains are found in many regulators of chromatin structure, and most of them recognize methylated lysines on histones. Here, we investigate the role of the Drosophila melanogaster protein Corto's chromodomain. The Enhancer of Trithorax and ...
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Multigenerational epigenetic adaptation of the hepatic wound-healing response.
Published: September, 2012

Abstract: We investigated whether ancestral liver damage leads to heritable reprogramming of hepatic wound healing in male rats. We found that a history of liver damage corresponds with transmission of an epigenetic suppressive adaptation of the fibrogenic ...
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The H3K4me3 histone demethylase Fbxl10 is a regulator of chemokine expression, cellular morphology and the metabolome of fibroblasts
Published: July, 2012

Abstract: Fbxl10 (Jhdm1b/Kdm2b) is a conserved and ubiquitously expressed member of the JHDM (JmjC-domain-containing histone demethy-lase) family. Fbxl10 was implicated in the demethylation of H3K4me3 or H3K36me2 thereby removing active chromatin marks and ...
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The histone H2B monoubiquitination regulatory pathway is required for differentiation of multipotent stem cells.
Published: June, 2012

Abstract: Extensive changes in posttranslational histone modifications accompany the rewiring of the transcriptional program during stem cell differentiation. However, the mechanisms controlling the changes in specific chromatin modifications and their func...
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Intronic RNAs mediate EZH2 regulation of epigenetic targets.
Published: June, 2012

Abstract: Epigenetic deregulation at a number of genomic loci is one of the hallmarks of cancer. A role for some RNA molecules in guiding repressive polycomb complex PRC2 to specific chromatin regions has been proposed. Here we use an in vivo cross-linking ...
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Chromatin structural changes around satellite repeats on the female sex chromosome in Schistosoma mansoni and their possible role in sex chromosome emergence.
Published: February, 2012

Abstract: BACKGROUND: In the leuphotrochozoan parasitic platyhelminth Schistosoma mansoni, male individuals are homogametic (ZZ) whereas females are heterogametic (ZW). To elucidate the mechanisms that led to the emergence of sex chromosomes, we compared th...
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Prepatterning of developmental gene expression by modified histones before zygotic genome activation.
Published: December, 2011

Abstract: A hallmark of anamniote vertebrate development is a window of embryonic transcription-independent cell divisions before onset of zygotic genome activation (ZGA). Chromatin determinants of ZGA are unexplored; however, marking of developmental genes...
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Silencing of Kruppel-like factor 2 by the histone methyltransferase EZH2 in human cancer.
Published: September, 2011

Abstract: The Kruppel-like factor (KLF) proteins are multitasked transcriptional regulators with an expanding tumor suppressor function. KLF2 is one of the prominent members of the family because of its diminished expression in malignancies and its growth-i...
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