Figure 4. Investigation of GFAP expression in the injected retina. The expression of GFAP was similar between transduced (lower panel) and non-transduced (upper panel) regions of scAAV2/5-injected eyes. The similarity in GFAP immunoreactivity between the injected and non-injected areas indicates that expression of GFP is not inducing glial cell reactivity. Scale bar equals 25 µm.