CLASP2 interacts with p120-catenin and governs microtubule dynamics at adherens junctions

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • Marta N Shahbazi
  • Diego Megias
  • Carolina Epifano
  • Anna Akhmanova
  • Gregg G Gundersen
  • Elaine Fuchs
  • Perez-Moreno, Mirna

Classical cadherins and their connections with microtubules (MTs) are emerging as important determinants of cell adhesion. However, the functional relevance of such interactions and the molecular players that contribute to tissue architecture are still emerging. In this paper, we report that the MT plus end-binding protein CLASP2 localizes to adherens junctions (AJs) via direct interaction with p120-catenin (p120) in primary basal mouse keratinocytes. Reductions in the levels of p120 or CLASP2 decreased the localization of the other protein to cell-cell contacts and altered AJ dynamics and stability. These features were accompanied by decreased MT density and altered MT dynamics at intercellular junction sites. Interestingly, CLASP2 was enriched at the cortex of basal progenitor keratinocytes, in close localization to p120. Our findings suggest the existence of a new mechanism of MT targeting to AJs with potential functional implications in the maintenance of proper cell-cell adhesion in epidermal stem cells.

OriginalsprogEngelsk
TidsskriftJournal of Cell Biology
Vol/bind203
Udgave nummer6
Sider (fra-til)1043-1061
Antal sider19
ISSN0021-9525
DOI
StatusUdgivet - 2013
Eksternt udgivetJa

ID: 188368550