Skip to main content
. Author manuscript; available in PMC: 2011 Feb 1.
Published in final edited form as: Curr Opin Neurobiol. 2009 Nov 24;20(1):86–91. doi: 10.1016/j.conb.2009.10.016

Figure 2. Possible initiating events triggering filopodium stabilization.

Figure 2

A, Release of presynaptic neurotransmitter may activate receptors on the filopodium. B, Binding of axonal ligands to adhesion receptors like integrins may induce downstream signaling. C, Adhesive attachments may resist retraction, increasing membrane tension and activating signaling, for example through stretch-activated calcium channels.