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. Author manuscript; available in PMC: 2013 Jun 14.
Published in final edited form as: Prog Retin Eye Res. 2008 May 28;27(4):331–371. doi: 10.1016/j.preteyeres.2008.05.001

Figure 23.

Figure 23

Contact between RPE and CECs triggers a PI3K-dependent activation of Rac1 in CECs necessary for their transmigration toward the VEGF gradient in the neurosensory retina. VEGF in the neurosensory retina provides a chemotactic gradient for further migration of CECs resulting in “breakthrough” regions on fluorescein angiography, which represent well-defined and sight-threatening CNV.