Inversely, the directionality of less contractile and adhesive MTLn3 cells can be enhanced by activating contractility or integrins.
The directionality of highly contractile and adhesive MDA-MB-231 cells can be diminished by inhibiting Rho kinase or β1 integrin binding.
Subtle, but quantifiable alterations in myosin II regulatory light chain phosphorylation on stress fibers explain the tuning of contact guidance fidelity, separate from migration per se indicating that the contractile and adhesive state of the cell in combination with collagen organization in the tumor microenvironment determine the efficiency of migration.
The resulting coupling between contractile and adhesive components, enforced by mechanical equilibrium, provides the basis for cell-ECM mechanosensing (Fig. 2).
Yet, our quantitative understanding of how ECM biophysical properties, mechanotransductive signals, and assembly of contractile and adhesive structures collude to control these cell behaviors remains extremely limited.
Local balance between myosin II-mediated contractile forces, adhesive interaction of cells with neighboring cells, and the generation of traction in the direction of lamellipodia extension contribute to growth, adhesion strengthening, and disruption of radial AJs.
In order to analyze contractile and adhesive behavior of cardiomyocytes in an elasticity range of ∼1 to 500 kPa silicone rubber substrates were fabricated.
At the same time, high-CXCR2 cells generated substantially higher contractile and adhesive forces and hence should be able to propel themselves more forcefully through an extracellular matrix (Fig. 7, C and D ).
These essential genes regulate further specialization and polarization of cell types along with proliferative, migratory, adhesive, contractile, and structural processes.
The FAU system is closely related to the intercellular adhesion molecules, especially with VE-cadherine maintaining a balance between adhesive and contractile forces.
