Cadherin-11 localizes to focal adhesions and promotes cell-substrate adhesion

Nat Commun. 2016 Mar 8:7:10909. doi: 10.1038/ncomms10909.

Abstract

Cadherin receptors have a well-established role in cell-cell adhesion, cell polarization and differentiation. However, some cadherins also promote cell and tissue movement during embryonic development and tumour progression. In particular, cadherin-11 is upregulated during tumour and inflammatory cell invasion, but the mechanisms underlying cadherin-11 stimulated cell migration are still incompletely understood. Here, we show that cadherin-11 localizes to focal adhesions and promotes adhesion to fibronectin in Xenopus neural crest, a highly migratory embryonic cell population. Transfected cadherin-11 also localizes to focal adhesions in different mammalian cell lines, while endogenous cadherin-11 shows focal adhesion localization in primary human fibroblasts. In focal adhesions, cadherin-11 co-localizes with β1-integrin and paxillin and physically interacts with the fibronectin-binding proteoglycan syndecan-4. Adhesion to fibronectin mediated by cadherin-11/syndecan-4 complexes requires both the extracellular domain of syndecan-4, and the transmembrane and cytoplasmic domains of cadherin-11. These results reveal an unexpected role of a classical cadherin in cell-matrix adhesion during cell migration.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cadherins / genetics
  • Cadherins / metabolism*
  • Cell Adhesion*
  • Cell Line
  • Cell Movement
  • Cells / cytology*
  • Cells / metabolism
  • Fibronectins / metabolism
  • Focal Adhesions / genetics
  • Focal Adhesions / metabolism*
  • Humans
  • Mice
  • Neural Crest / growth & development
  • Neural Crest / metabolism
  • Protein Transport
  • Xenopus laevis / embryology
  • Xenopus laevis / genetics
  • Xenopus laevis / metabolism*

Substances

  • Cadherins
  • Fibronectins
  • osteoblast cadherin