Results 121 to 130 of about 124,493 (360)

From Genome to Geroscience: How DNA Damage Shapes Systemic Decline

open access: yesBioEssays, EarlyView.
Persistent DNA damage triggers systemic secretory responses including damage‐associated molecular patterns (DAMPs), the senescence‐associated secretory phenotype (SASP), and extracellular vesicles (EVs). This non‐cell‐autonomous signaling disrupts intercellular communication, driving organism‐wide dysfunction and aging, and offering new therapeutic ...
Athanasios Siametis, George A. Garinis
wiley   +1 more source

Comprehensive analysis of the chromatin landscape in Drosophila melanogaster. [PDF]

open access: yes, 2010
Chromatin is composed of DNA and a variety of modified histones and non-histone proteins, which have an impact on cell differentiation, gene regulation and other key cellular processes.
Alekseyenko, Artyom A   +29 more
core   +4 more sources

Epigenetic gene silencing by heterochromatin primes fungal resistance

open access: yesNature, 2019
Heterochromatin that depends on histone H3 lysine 9 methylation (H3K9me) renders embedded genes transcriptionally silent1–3. In the fission yeast Schizosaccharomyces pombe, H3K9me heterochromatin can be transmitted through cell division provided the ...
Sito Torres-Garcia   +6 more
semanticscholar   +1 more source

Heterochromatin structure and function [PDF]

open access: yesBiology of the Cell, 2004
Abstract Although heterochromatin has long been used as a model for studying chromatin condensation and heritable gene silencing, it is only relatively recently that detailed information has become available on the mechanisms that underlie its structure. Current evidence suggests that these operate on at least three different levels.
openaire   +3 more sources

Unveiling the complexity of cellular senescence in cancers: From mechanism to therapeutic opportunities

open access: yesBMEMat, EarlyView.
This review highlights the complex roles of cellular senescence in cancer progression and suppression, discusses the mechanisms and regulatory pathways involved, and evaluates the efficacy of the “One‐Two punch” sequential treatment approach while addressing emerging challenges in this novel therapeutic strategy.
Qiuming Pan   +12 more
wiley   +1 more source

Molecular cytotaxonomy of primates by chromosomal in situ suppression hybridization [PDF]

open access: yes, 1990
A new strategy for analyzing chromosomal evolution in primates is presented using chromosomal in situ suppression (CISS) hybridization. Biotin-labeled DNA libraries from flow-sorted human chromosomes are hybridized to chromosome preparations of ...
Anna Jauch   +22 more
core   +1 more source

Chromatin loops associated with active genes and heterochromatin shape rice genome architecture for transcriptional regulation

open access: yesNature Communications, 2019
Insight into high-resolution three-dimensional genome organization and its effect on transcription remains largely elusive in plants. Here, using a long-read ChIA-PET approach, we map H3K4me3- and RNA polymerase II (RNAPII)-associated promoter–promoter ...
Lun Zhao   +13 more
semanticscholar   +1 more source

Chromatin phase separation and nuclear shape fluctuations are correlated in a polymer model of the nucleus

open access: yesNucleus
Abnormal cell nuclear shapes are hallmarks of diseases, including progeria, muscular dystrophy, and many cancers. Experiments have shown that disruption of heterochromatin and increases in euchromatin lead to nuclear deformations, such as blebs and ...
Ali Goktug Attar   +3 more
doaj   +1 more source

Dynamic expression of lamin B1 during adult neurogenesis in the vertebrate brain

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background In mammals, specific brain regions such as the dentate gyrus (DG) of the hippocampus and the subventricular zone (SVZ) of the lateral ventricles harbor adult neural stem/progenitor cells (ANSPCs) that give rise to new neurons and contribute to structural and functional brain plasticity.
Diana Zhilina   +12 more
wiley   +1 more source

TFIIIC Localizes Budding Yeast ETC Sites to the Nuclear Periphery [PDF]

open access: yes, 2012
Peer reviewedPublisher ...
Botsios, Sotirios   +3 more
core   +2 more sources

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