In this issue of Developmental Cell, Meenderink et al. (2019) describe how treadmilling of the actin core of nascent microvilli on the apical surface of epithelial cells underlies their motility across the… Click to show full abstract
In this issue of Developmental Cell, Meenderink et al. (2019) describe how treadmilling of the actin core of nascent microvilli on the apical surface of epithelial cells underlies their motility across the cell surface, collision with each other, and ultimately clustering to form the "brush border."
               
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