Functions of nonmuscle myosin II in assembly of the cellular contractile system. [PDF]
The contractile system of nonmuscle cells consists of interconnected actomyosin networks and bundles anchored to focal adhesions. The initiation of the contractile system assembly is poorly understood structurally and mechanistically, whereas system's ...
Maria Shutova +3 more
doaj +1 more source
The mechano-chemistry of cytoskeletal force generation [PDF]
In this communication, we propose a model to study the non-equilibrium process by which actin stress fibers develop force in contractile cells. The emphasis here is on the non-equilibrium thermodynamics, which is necessary to address the mechanics as ...
Garikipati, Krishna, Maraldi, Mirko
core +1 more source
Live cell imaging reveals focal adhesions mechanoresponses in mammary epithelial cells under sustained equibiaxial stress [PDF]
Mechanical stimuli play a key role in many cell functions such as proliferation, differentiation and migration. In the mammary gland, mechanical signals such as the distension of mammary epithelial cells due to udder filling are proposed to be directly ...
Bianchi, Micaela +5 more
core +1 more source
Molecular dissection of the mechanism by which EWS/FLI expression compromises actin cytoskeletal integrity and cell adhesion in Ewing sarcoma. [PDF]
Ewing sarcoma is the second-most-common bone cancer in children. Driven by an oncogenic chromosomal translocation that results in the expression of an aberrant transcription factor, EWS/FLI, the disease is typically aggressive and micrometastatic upon ...
Beckerle, Mary C +8 more
core +1 more source
In vivo epidermal migration requires focal adhesion targeting of ACF7
The spectraplakin protein ACF7 binds to actin at focal adhesions and targets microtubule plus ends to focal adhesions, promoting their disassembly. Here the authors reveal that ACF7 is phosphorylated by Src/FAK, and this regulates actin binding and focal
Jiping Yue +11 more
doaj +1 more source
Vinculin expression in MC3T3-E1 cells in response to mechanical stimulus
Loading frequency is known to influence the expression of the focal adhesions of the adherent cells. A small cyclical tensile force was transmitted to mouse pre-osteoblast MC3T3-E1 cells through PDMS substrates of varying stiffness.
J.J. Cora-Cruz +2 more
doaj +1 more source
A Novel 2.5D Culture Platform to Investigate the Role of Stiffness Gradients on Adhesion-Independent Cell Migration [PDF]
Current studies investigating the role of biophysical cues on cell migration focus on the use of culture platforms with static material parameters. However, migrating cells in vivo often encounter spatial variations in extracellular matrix stiffness.
Asuri, Prashanth +2 more
core +3 more sources
A minimal model of cellular mechanosensing system that consists of a single stress fiber adhering on a substrate via two focal adhesions made of catch bonds is adopted to investigate the phenomena of cell reorientation on substrates induced by an applied
Bin Chen +4 more
doaj +1 more source
Investigation of the limits of nanoscale filopodial interactions [PDF]
Mesenchymal stem cells are sensitive to changes in feature height, order and spacing. We had previously noted that there was an inverse relationship between osteoinductive potential and feature height on 15-, 55- and 90 nm-high titania nanopillars, with ...
Dalby, Matthew J. +5 more
core +2 more sources
FOCAL ADHESIONS, CONTRACTILITY, AND SIGNALING
▪ Abstract  Focal adhesions are sites of tight adhesion to the underlying extracellular matrix developed by cells in culture. They provide a structural link between the actin cytoskeleton and the extracellular matrix and are regions of signal transduction that relate to growth control.
K, Burridge, M, Chrzanowska-Wodnicka
openaire +3 more sources

