Scribble, Lgl1, and myosin II form a complex in vivo to promote directed cell migration.

In this study, we show that Scrib, through its LRR domain, forms a complex in vivo with Lgl1. Scrib also forms a complex with myosin II, and Scrib, Lgl1, and myosin II co-localize at the leading edge of migrating cells. The cellular localization and the cytoskeletal association of Scrib and Lgl1 are interdependent, as depletion of either protein affects its counterpart. In addition, depletion of either Scrib or Lgl1 disrupts the cellular localization of myosin II. We show that depletion of either Scrib or Lgl1 affects cell adhesion through the inhibition of focal adhesion disassembly. Finally, we show that Scrib and Lgl1 are required for proper cell polarity of migrating cells. These results provide new insights into the mechanism regulating the cell polarity of migrating cells by Scrib, Lgl1, and myosin II. PMID: 32697665 [PubMed - as supplied by publisher]
Source: Mol Biol Cell - Category: Molecular Biology Authors: Tags: Mol Biol Cell Source Type: research