Pre-implantation mouse embryos cultured In vitro under different oxygen concentrations show altered ultrastructures [PDF]
, 2020 Assisted Reproductive Technologies routinely utilize different culture media and oxygen (O2) concentrations to culture human embryos. Overall, embryos cultured under physiological O2 tension (5%) have improved development compared to embryos cultured ...
Antonouli, S +6 more
core +1 more source
Stem Cell Research & Therapy, 2020 Background Stem cell senescence has been proposed as one of the major drivers of aging, and MSC senescence contributes to aging-related diseases. Activation of mTORC1 pathway and heterochromatin organization have been characterized as two characteristics
Hailong Liu +7 more
doaj +1 more source
Rbm10 facilitates heterochromatin assembly via the Clr6 HDAC complex
Epigenetics & Chromatin, 2021 Splicing factors have recently been shown to be involved in heterochromatin formation, but their role in controlling heterochromatin structure and function remains poorly understood.
Martina Weigt +7 more
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Pericentromeric heterochromatin is hierarchically organized and spatially contacts H3K9me2 islands in euchromatin. [PDF]
, 2020 Membraneless pericentromeric heterochromatin (PCH) domains play vital roles in chromosome dynamics and genome stability. However, our current understanding of 3D genome organization does not include PCH domains because of technical challenges associated ...
Acevedo, David +7 more
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Heterochromatin Focuses on Senescence [PDF]
Molecular Cell, 2005 A key step in cellular senescence is the packaging of proliferation-promoting genes into repressive chromatin or heterochromatin. Recent work has described a novel histone component and mode of assembly of this senescence-associated heterochromatin.
Jessica K. Tyler, Laura L. Schulz
openaire +3 more sources
Rapid epigenetic adaptation to uncontrolled heterochromatin spreading
eLife, 2015 Heterochromatin, a highly compact chromatin state characterized by histone H3K9 methylation and HP1 protein binding, silences the underlying DNA and influences the expression of neighboring genes.
Jiyong Wang, Bharat D Reddy, Songtao Jia
doaj +1 more source
Heterochromatin formation promotes longevity and represses ribosomal RNA synthesis. [PDF]
PLoS Genetics, 2012 Organismal aging is influenced by a multitude of intrinsic and extrinsic factors, and heterochromatin loss has been proposed to be one of the causes of aging. However, the role of heterochromatin in animal aging has been controversial.
Kimberly Larson +8 more
doaj +1 more source
From Effective Interactions Extracted Using Hi-C Data to Chromosome Structures in Conventional and Inverted Nuclei [PDF]
PRX Life 1, 013010 (2023), 2023 Contact probabilities between loci, separated by arbitrary genomic distance, for a number of cell types have been reported using genome-wide chromosome conformation capture (Hi-C) experiments. How to extract the effective interaction energies between active euchromatin (A) and inactive heterochromatin (B) directly from the experimental data, without an
arxiv +1 more source
Candida albicans repetitive elements display epigenetic diversity and plasticity [PDF]
, 2016 Transcriptionally silent heterochromatin is associated with repetitive DNA. It is poorly understood whether and how heterochromatin differs between different organisms and whether its structure can be remodelled in response to environmental signals. Here,
A Ellahi +56 more
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The replacement histone H2A.Z in a hyperacetylated form is a feature of active genes in the chicken [PDF]
, 2005 The replacement histone H2A.Z is variously reported as being linked to gene expression and preventing the spread of heterochromatin in yeast, or concentrated at heterochromatin in mammals.
Bonifer, C. +8 more
core +6 more sources