Mechanical properties of the cytoskeleton and cells

AF Pegoraro, P Janmey… - Cold Spring Harbor …, 2017 - cshperspectives.cshlp.org
The cytoskeleton is the major mechanical structure of the cell; it is a complex, dynamic
biopolymer network comprising microtubules, actin, and intermediate filaments. Both the …

On the mechanistic origins of toughness in bone

ME Launey, MJ Buehler… - Annual review of materials …, 2010 - annualreviews.org
One of the most intriguing protein materials found in nature is bone, a material composed of
assemblies of tropocollagen molecules and tiny hydroxyapatite mineral crystals that form an …

Generative design of de novo proteins based on secondary-structure constraints using an attention-based diffusion model

B Ni, DL Kaplan, MJ Buehler - Chem, 2023 - cell.com
We report two generative deep-learning models that predict amino acid sequences and 3D
protein structures on the basis of secondary-structure design objectives via either the overall …

Vimentin filaments integrate low-complexity domains in a complex helical structure

M Eibauer, MS Weber, R Kronenberg-Tenga… - Nature Structural & …, 2024 - nature.com
Intermediate filaments (IFs) are integral components of the cytoskeleton. They provide cells
with tissue-specific mechanical properties and are involved in numerous cellular processes …

Vimentin intermediate filaments and filamentous actin form unexpected interpenetrating networks that redefine the cell cortex

H Wu, Y Shen, S Sivagurunathan… - Proceedings of the …, 2022 - National Acad Sciences
The cytoskeleton of eukaryotic cells is primarily composed of networks of filamentous
proteins, F-actin, microtubules, and intermediate filaments. Interactions among the …

Unique role of vimentin networks in compression stiffening of cells and protection of nuclei from compressive stress

K Pogoda, F Byfield, P Deptuła, M Cieśluk… - Nano Letters, 2022 - ACS Publications
In this work, we investigate whether stiffening in compression is a feature of single cells and
whether the intracellular polymer networks that comprise the cytoskeleton (all of which stiffen …

[HTML][HTML] The role of vimentin intermediate filaments in cortical and cytoplasmic mechanics

M Guo, AJ Ehrlicher, S Mahammad, H Fabich… - Biophysical journal, 2013 - cell.com
The mechanical properties of a cell determine many aspects of its behavior, and these
mechanics are largely determined by the cytoskeleton. Although the contribution of actin …

The α-helix to β-sheet transition in stretched and compressed hydrated fibrin clots

RI Litvinov, DA Faizullin, YF Zuev, JW Weisel - Biophysical journal, 2012 - cell.com
Fibrin is a protein polymer that forms the viscoelastic scaffold of blood clots and thrombi.
Despite the critical importance of fibrin deformability for outcomes of bleeding and …

Intermediate filaments at the junction of mechanotransduction, migration, and development

R Sanghvi-Shah, GF Weber - Frontiers in cell and developmental …, 2017 - frontiersin.org
Mechanically induced signal transduction has an essential role in development. Cells
actively transduce and respond to mechanical signals and their internal architecture must …

Effect of the Rho-kinase/ROCK signaling pathway on cytoskeleton components

G Guan, RD Cannon, DE Coates, L Mei - Genes, 2023 - mdpi.com
The mechanical properties of cells are important in tissue homeostasis and enable cell
growth, division, migration and the epithelial-mesenchymal transition. Mechanical properties …