1. Mechanical Control of Cell Migration by the Metastasis Suppressor Tetraspanin CD82/KAI1
- Author
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Fedor Berditchevski, Lucie Chauvin, Elena Odinstova, Alexia Calovoulos, Anthony Lozano, Christopher Chevillard, Laura Ordas, Pierre-Emmanuel Milhiet, Christine Doucet, Eric Rubinstein, Luca Costa, Laurent Fernandez, Christine Benistant, and Patrice Dosset
- Subjects
Focal adhesion ,medicine.anatomical_structure ,Tetraspanin ,Chemistry ,Caveolae ,Cell ,Caveolin ,medicine ,Metastasis suppressor ,Cell migration ,CD82 ,Cell biology - Abstract
The plasma membrane is a key actor of cell migration. For instance, its tension controls persistent cell migration and cell surface caveolae integrity. Then, caveolae constituents like caveolin-1 can initiate a mechano-tranduction loop that involves actin-and focal adhesions- dependent control of the mechanosensor YAP to finely tune cell migration. Tetraspanin CD82 (also named KAI-1) is an integral membrane protein and a metastasis suppressor. Its expression is lost in many cancers including breast cancer. It is a strong inhibitor of cell migration by a not well-known mechanism. We demonstrated here that CD82 controls persistent 2D migration of EGF-induced single cell, stress fibers and focal adhesion sizes and dynamics. In addition, CD82 regulates cell mechanics e.g. membrane tension, cell surface caveolae abundance and YAP nuclear translocation in a caveolin-1 dependent manner. Altogether, our data strongly suggest that CD82 controls 2D cell migration using a membrane-driven mechanical loop involving caveolin and the YAP pathway.
- Published
- 2020
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