Faculty Opinions recommendation of Spatio-temporal regulation of Rac1 localization and lamellipodia dynamics during epithelial cell-cell adhesion.

Author(s):  
Yoshimi Takai
2007 ◽  
Vol 178 (2) ◽  
pp. 323-335 ◽  
Author(s):  
Lene N. Nejsum ◽  
W. James Nelson

Mechanisms involved in maintaining plasma membrane domains in fully polarized epithelial cells are known, but when and how directed protein sorting and trafficking occur to initiate cell surface polarity are not. We tested whether establishment of the basolateral membrane domain and E-cadherin–mediated epithelial cell–cell adhesion are mechanistically linked. We show that the basolateral membrane aquaporin (AQP)-3, but not the equivalent apical membrane AQP5, is delivered in post-Golgi structures directly to forming cell–cell contacts where it co-accumulates precisely with E-cadherin. Functional disruption of individual components of a putative lateral targeting patch (e.g., microtubules, the exocyst, and soluble N-ethylmaleimide–sensitive factor attachment protein receptors) did not inhibit cell–cell adhesion or colocalization of the other components with E-cadherin, but each blocked AQP3 delivery to forming cell–cell contacts. Thus, components of the lateral targeting patch localize independently of each other to cell–cell contacts but collectively function as a holocomplex to specify basolateral vesicle delivery to nascent cell–cell contacts and immediately initiate cell surface polarity.


F1000Research ◽  
2018 ◽  
Vol 7 ◽  
pp. 1544 ◽  
Author(s):  
Vivian W. Tang

The epithelial lateral membrane plays a central role in the integration of intercellular signals and, by doing so, is a principal determinant in the emerging properties of epithelial tissues. Mechanical force, when applied to the lateral cell–cell interface, can modulate the strength of adhesion and influence intercellular dynamics. Yet the relationship between mechanical force and epithelial cell behavior is complex and not completely understood. This commentary aims to provide an investigative look at the usage of cellular forces at the epithelial cell–cell adhesion interface.


Author(s):  
Phillip W. Miller ◽  
Donald N. Clarke ◽  
William I. Weis ◽  
Christopher J. Lowe ◽  
W. James Nelson

1994 ◽  
Vol 2 (5) ◽  
pp. 417-428 ◽  
Author(s):  
Sergey V. Litvinov ◽  
Hellen A. M. Bakker ◽  
Maia M. Gourevitch ◽  
Markwin P. Velders ◽  
Sven O. Warnaar

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