Persistent cell migration emerges from a coupling between protrusion dynamics and polarized trafficking.

ABSTRACT: Migrating cells present a variety of paths, from random to highly directional ones. While random movement can be explained by basal intrinsic activity, persistent movement requires stable polarization. Here, we quantitatively address emergence of persistent migration in (hTERT)-immortalizedRPE1 (retinal pigment epithelial) cells over long timescales. By live cell imaging and dynamic micropatterning, we demonstrate that the Nucleus-Golgi axis aligns with direction of migration leading to efficient cell movement. We show that polarized trafficking is directed toward protrusions with a 20-min delay, and that migration becomes random after disrupting internal cell organization. Eventually, we prove that localized optogenetic Cdc42 activation orients the Nucleus-Golgi axis. Our work suggests th

SUBMITTER: Vaidziulyte K 

PROVIDER: S-EPMC8963884 | biostudies-literature | 2022 Mar

REPOSITORIES: biostudies-literature