Results 61 to 70 of about 73,923 (265)
Ring-like distribution of constitutive heterochromatin in bovine senescent cells. [PDF]
PLoS ONE, 2011 BACKGROUND: Cells that reach "Hayflick limit" of proliferation, known as senescent cells, possess a particular type of nuclear architecture. Human senescent cells are characterized by the presence of highly condensed senescent associated heterochromatin ...
Andrey Pichugin +3 more
doaj +1 more source
FEBS Open Bio, EarlyView.Long non‐coding RNAs (lncRNAs) occupy an abundant fraction of the eukaryotic transcriptome and an emerging area in cancer research. Regulation by lncRNAs is based on their subcellular localization in HNSCC. This cartoon shows the various functions of lncRNAs in HNSCC discussed in this review.
Ellen T. Tran +3 more
wiley +1 more source
The Cell Biology of Heterochromatin
Cells, 2022 A conserved feature of virtually all higher eukaryotes is that the centromeres are embedded in heterochromatin. Here we provide evidence that this tight association between pericentric heterochromatin and the centromere is essential for proper metaphase ...
Brandt Warecki, William Sullivan
doaj +1 more source
Cell nucleus elastography with the adjoint-based inverse solver [PDF]
Computer Methods and Programs in Biomedicine, In press, 2023 Background and Objectives: The mechanics of the nucleus depends on cellular structures and architecture, and impact a number of diseases. Nuclear mechanics is yet rather complex due to heterogeneous distribution of dense heterochromatin and loose euchromatin domains, giving rise to spatially variable stiffness properties.
arxiv
H3K9me3-heterochromatin loss at protein-coding genes enables developmental lineage specification
Science, 2019 Reversing chromatin dynamics for development Compacted chromatin regions, marked by trimethylation of histone H3 at position lysine 9 (H3K9me3), occur at highly repeated DNA sequences, helping to suppress recombination and gene expression.
Dario Nicetto +14 more
semanticscholar +1 more source
Nature Communications, 2020 In flowering plants, heterochromatin is demarcated by the histone variant H2A.W, elevated levels of the linker histone H1, and specific epigenetic modifications, such as high levels of DNA methylation at both CG and non-CG sites.
Pierre Bourguet +10 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.Oct4‐nanoscript, a biomimetic nanoparticle‐based artificial transcription factor, precisely regulates cellular rejuvenation by activating Oct4 target genes, restoring epigenetic marks, and reducing DNA damage. In a progeria model, it effectively rescued aging‐associated pathologies and extended lifespan.
Hongwon Kim +8 more
wiley +1 more source
Chromatin Organization Governs Transcriptional Response and Plasticity of Cancer Stem Cells
Advanced Science, EarlyView.Through a combination of transcriptomic and histone mapping studies integrated with chromatin imaging, we define how chromatin organization in nanoscale packing domains fine tunes the plasticity of cancer stem cells (CSCs) driving evasion from and survival after chemotherapy.
Yinu Wang +20 more
wiley +1 more source
A 3D Genome Atlas of Genetic Variants and Their Pathological Effects in Cancer
Advanced Science, EarlyView.The hierarchical organization of the eukaryotic genome is vital for nuclear function, and disruptions from genetic mutations can alter this 3D architecture. Cataloging thousands of interchromosomal translocations, structural variants, and single nucleotide polymorphisms, their impact on 3D genome organization is revealed. The scoring algorithm, 3DFunc,
Li Tang +6 more
wiley +1 more source
Advanced Science, EarlyView.This study utilized Ss‐STARR‐seq to construct a genome‐wide silencer map of mouse cells and elucidated the fundamental characteristics of these silencers. These silencers exist in a cell‐specific manner and exhibit unique epigenetic modifications. Through functional experiments, we also discovered that these silencers can regulate gene expression and ...
Xiusheng Zhu +12 more
wiley +1 more source