title: Cdk5: A regulator of epithelial cell adhesion and migration.
abstract: Cell adhesion is a fundamental property of epithelial cells required for anchoring, migration and survival. During cell migration, the formation and disruption of adhesion sites is stringently regulated by integration of multiple, sequential signals acting in distinct regions of the cell. Recent findings implicate cyclin dependent kinase 5 (Cdk5) in the signaling pathways that regulate cell adhesion and migration of a variety of cell types. Experiments with epithelial cell lines indicate that Cdk5 activity exerts its effects by limiting Src activity in regions where Rho activity is required for stress fiber contraction and by phosphorylating the talin head to stabilize nascent focal adhesions. Both pathways regulate cell migration by increasing adhesive strength.
authors.affiliation: Laboratory of Molecular and Developmental Biology, National Eye Institute, National Institutes of Health, Bethesda, MD, USA.
authors.forename: Brajendra K
authors.initials: BK
authors.lastname: Tripathi
authors.forename: Peggy S
authors.initials: PS
authors.lastname: Zelenka
mesh_terms: D000818:Animals; D002448:Cell Adhesion / Q000187:drug effects; D002465:Cell Movement / Q000187:drug effects; D051360:Cyclin-Dependent Kinase 5 / Q000037:antagonists & inhibitors / Q000378:metabolism*; D004847:Epithelial Cells / Q000166:cytology* / Q000187:drug effects / Q000201:enzymology*; D006801:Humans; D008954:Models, Biological; D018994:Myosin Light Chains / Q000378:metabolism; D047428:Protein Kinase Inhibitors / Q000494:pharmacology; D022502:Stress Fibers / Q000187:drug effects / Q000378:metabolism; D016608:Talin / Q000378:metabolism
chemical_list: D018994:Myosin Light Chains; D047428:Protein Kinase Inhibitors; D016608:Talin; D051360:Cyclin-Dependent Kinase 5