Adhesion to fibronectin regulates Hippo signaling via the FAK-Src-PI3K pathway.

ABSTRACT: The Hippo pathway is involved in the regulation of contact inhibition of proliferation and responses to various physical and chemical stimuli. Recently, several upstream negative regulators of Hippo signaling, including epidermal growth factor receptor ligands and lysophosphatidic acid, have been identified. We show that fibronectin adhesion stimulation of focal adhesion kinase (FAK)-Src signaling is another upstream negative regulator of the Hippo pathway. Inhibition of FAK or Src in MCF-10A cells plated at low cell density prevented the activation of Yes-associated protein (YAP) in a large tumor suppressor homologue (Lats)-dependent manner. Attachment of serum-starved MCF-10A cells to fibronectin, but not poly-d-lysine or laminin, induced YAP nuclear accumulation via the FAK-Src-phosphat

SUBMITTER: Kim NG 

PROVIDER: S-EPMC4523609 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature