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The third dimension of the actin cortex

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Jawahar, Anumita | Vermeil, Joseph | Julien, Heuvingh | Du Roure, Olivia | Piel, Matthieu

Edité par CCSD ; Elsevier -

International audience. The actin cortex, commonly described as a thin 2-dimensional layer of actin filaments beneath the plasma membrane, is beginning to be recognized as part of a more dynamic and three-dimensional composite material. In this review, we focus on the elements that contribute to the three-dimensional architecture of the actin cortex. We also argue that actin-rich structures such as filopodia and stress fibers can be viewed as specialized integral parts of the 3D actin cortex. This broadens our definition of the cortex, shifting from its simplified characterization as a thin, two-dimensional layer of actin filaments.

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