Wound Healing Coordinates Actin Architectures to Regulate Mechanical Work.

ABSTRACT: How cells with diverse morphologies and cytoskeletal architectures modulate their mechanical behaviors to drive robust collective motion within tissues is poorly understood. During wound repair within epithelial monolayers in vitro, cells coordinate the assembly of branched and bundled actin networks to regulate the total mechanical work produced by collective cell motion. Using traction force microscopy, we show that the balance of actin network architectures optimizes the wound closure rate and the magnitude of the mechanical work. These values are constrained by the effective power exerted by the monolayer, which is conserved and independent of actin architectures. Using a cell-based physical model, we show that the rate at which mechanical work is done by the monolayer is limited by th

SUBMITTER: Ajeti V 

PROVIDER: S-EPMC6939997 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature