The trip of the tip: understanding the growth cone machinery.
The central component in the road trip of axon guidance is the growth cone, a dynamic structure that is located at the tip of the growing axon. During its journey, the growth cone comprises both 'vehicle' and 'navigator'. Whereas the 'vehicle' maintains growth cone movement and contains the cytoskeletal structural elements of its framework, a motor to move forward and a mechanism to provide traction on the 'road', the 'navigator' aspect guides this system with spatial bias to translate environmental signals into directional movement. The understanding of the functions and regulation of the vehicle and navigator provides new insights into the cell biology of growth cone guidance.
Harvard Medical School, 240 Longwood Avenue, Boston, Massachusetts 02115, USA.
Laura Anne
LA
Lowery
David
D
Van Vactor
D000199:Actins / Q000378:metabolism; D000818:Animals; D003599:Cytoskeleton / Q000378:metabolism; D020439:Growth Cones / Q000378:metabolism / Q000502:physiology*; D006801:Humans; D008870:Microtubules / Q000378:metabolism; D011485:Protein Binding
D000199:Actins