Filopodia are specialized structures that extend from the cell membrane to allow a cell to explore the environment around it. These thin protrusions are full of a protein called actin, which, in ...

Computer simulations of filopodia dynamics indicate that a rotating actin structure inside the tube results in friction between the membrane and the actin, leading to the spiral form that is observed.

Espin induces abundant filopodia formation at the leading edge and along the sides, exerting force for cells migrating in ...