Probe-free optical chromatin deformation and measurement of differential mechanical properties in the nucleus

B Seelbinder, S Wagner, M Jain, E Erben, S Klykov… - ELife, 2024 - elifesciences.org
The nucleus is highly organized to facilitate coordinated gene transcription. Measuring the
rheological properties of the nucleus and its sub-compartments will be crucial to understand …

Dynamical phase transition in models that couple chromatin folding with histone modifications

A Sood, G Schuette, B Zhang - Physical Review E, 2024 - APS
Genomic regions can acquire heritable epigenetic states through unique histone
modifications, which lead to stable gene expression patterns without altering the underlying …

Dynamic heterochromatin states in anisotropic nuclei of cells on aligned nanofibers

W Liu, A Padhi, X Zhang, J Narendran, MA Anastasio… - ACS …, 2022 - ACS Publications
The cancer cell nucleus deforms as it invades the interstitial spaces in tissues and the tumor
microenvironment. While alteration of the chromatin structure in a deformed nucleus is …

[HTML][HTML] RNA structure promotes liquid-to-solid phase transition of short RNAs in neuronal dysfunction

S Wang, Y Xu - Communications Biology, 2024 - nature.com
In nucleotide expansion disorders, RNA foci are reportedly associated with
neurodegenerative disease pathogeneses. Characteristically, these RNAs exhibit long poly …

Ethanol-induced condensation and decondensation in DNA-linked nanoparticles: a nucleosome-like model for the condensed state

Q Xiong, OS Lee, CA Mirkin… - Journal of the American …, 2022 - ACS Publications
Inspired by the conventional use of ethanol to induce DNA precipitation, ethanol
condensation has been applied as a routine method to dynamically tune “bond” lengths (ie …

Spatial organization of chromosomes leads to heterogeneous chromatin motion and drives the liquid-or gel-like dynamical behavior of chromatin

H Salari, M Di Stefano, D Jost - Genome research, 2022 - genome.cshlp.org
Chromosome organization and dynamics are involved in regulating many fundamental
processes such as gene transcription and DNA repair. Experiments unveiled that chromatin …

Approaches to characterize chromatin subcompartment organization in the cell nucleus

R Weinmann, L Frank, K Rippe - Current Opinion in Structural Biology, 2023 - Elsevier
The mechanism of self-organization of chromatin subcompartments on the 0.1–1 μm scale
and their impact on genome-associated activities has long been a key aspect of research on …

Non-coding RNAs in chromatin folding and nuclear organization

SV Razin, AA Gavrilov - Cellular and Molecular Life Sciences, 2021 - Springer
One of the most intriguing questions facing modern biology concerns how the genome
directs the construction of cells, tissues, and whole organisms. It is tempting to suggest that …

[HTML][HTML] A liquid state perspective on dynamics of chromatin compartments

R Laghmach, M Di Pierro, D Potoyan - Frontiers in Molecular …, 2022 - frontiersin.org
The interior of the eukaryotic cell nucleus has a crowded and heterogeneous environment
packed with chromatin polymers, regulatory proteins, and RNA molecules. Chromatin …

[HTML][HTML] Chromatin: liquid or solid?

A Zidovska - Cell, 2020 - cell.com
In this issue of Cell, Strickfaden et al. reveal that condensed chromatin shows a solid-like
behavior at mesoscales both in vitro and in living cells. Using fluorescent microscopy …