Results 31 to 40 of about 60,956 (264)

MBD2 couples DNA methylation to transposable element silencing during male gametogenesis

open access: yesNature Plants, 2023
Abstract DNA methylation is an essential component of transposable element (TE) silencing, yet the mechanism by which methylation causes transcriptional repression remains poorly understood 1–5 .
Shuya Wang   +9 more
openaire   +4 more sources

Widespread contribution of transposable elements to the rewiring of mammalian 3D genomes

open access: yesNature Communications, 2023
Here the authors show transposable elements, formerly considered junk DNA, are a source of CTCF binding sites that contribute to species-specific 3D-genome structure, and may impact gene regulation during the course of mammalian evolution.
Mayank N. K. Choudhary   +4 more
doaj   +1 more source

Shedding light on DNA methylation and its clinical implications: the impact of long-read-based nanopore technology

open access: yesEpigenetics & Chromatin
DNA methylation is an essential epigenetic mechanism for regulation of gene expression, through which many physiological (X-chromosome inactivation, genetic imprinting, chromatin structure and miRNA regulation, genome defense, silencing of transposable ...
Alexandra Chera   +3 more
doaj   +1 more source

DNA methylation dynamics during early plant life

open access: yesGenome Biology, 2017
Background Cytosine methylation is crucial for gene regulation and silencing of transposable elements in mammals and plants. While this epigenetic mark is extensively reprogrammed in the germline and early embryos of mammals, the extent to which DNA ...
Daniel Bouyer   +6 more
doaj   +1 more source

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

open access: yesMolecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice   +16 more
wiley   +1 more source

Subtype‐specific enhancer RNAs define transcriptional regulators and prognosis in breast cancers

open access: yesMolecular Oncology, EarlyView.
This study employed machine learning methodologies to perform the subtype‐specific classification of RNA‐seq data sets, which are mapped on enhancers from TCGA‐derived breast cancer patients. Their integration with gene expression (referred to as ProxCReAM eRNAs) and chromatin accessibility profiles has the potential to identify lineage‐specific and ...
Aamena Y. Patel   +6 more
wiley   +1 more source

Cross-Regulation between Transposable Elements and Host DNA Replication [PDF]

open access: yesViruses, 2017
Transposable elements subvert host cellular functions to ensure their survival. Their interaction with the host DNA replication machinery indicates that selective pressures lead them to develop ancestral and convergent evolutionary adaptations aimed at conserved features of this fundamental process.
openaire   +2 more sources

A complex repeated DNA sequence within the Drosophila transposable element copia [PDF]

open access: yesNucleic Acids Research, 1981
A 320 nucleotide repeated DNA sequence within the copia coding element of Drosophila melanogaster has been identified and characterized. This sequence has been localized by DNA-DNA hybridization and electron microscopic analysis of heteroduplexes to the approximate middle of the 5 kb copia coding region.
Fouts, David L   +3 more
openaire   +4 more sources

Keratin 19 as a prognostic marker and contributing factor of metastasis and chemoresistance in high‐grade serous ovarian cancer

open access: yesMolecular Oncology, EarlyView.
Keratin 19 (KRT19) is overexpressed in high‐grade serous ovarian cancer with high levels of Kallikrein‐related peptidases (KLK) 4–7 and is associated with poor survival. In vivo analyses demonstrate that elevated KRT19 increases peritoneal tumour burden.
Sophia Bielesch   +13 more
wiley   +1 more source

Activation of neuronal genes via LINE-1 elements upon global DNA demethylation in human neural progenitors

open access: yesNature Communications, 2019
DNA methylation plays an important role in silencing transposable elements. Here the authors find that loss of DNMT1 and DNA methylation leads to transcriptional activation and chromatin remodelling of evolutionarily young—hominoid-specific —LINE-1 ...
Marie E Jönsson   +12 more
doaj   +1 more source

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