Figure 4. Retinal expression of aquaporin 4 and glial fibrillary acidic protein during experimental autoimmune uveitis. The images illustrate retina without specific lesions (A, B, and C), with vasculitis (D, E, and F) or with intraretinal inflammatory infiltrate (G, H, I, J, K, and L). Retina was submitted to immunofluorescent staining for aquaporin 4 (AQP4; in green; A, D, G, and J), or to glial fibrillary acidic protein (GFAP; in red; B, E, H, and K). Cell nuclei were stained with DAPI (in blue). C, F, I, and L correspond to merged images. ILM represents inner limiting membrane; OLM represents outer limiting membrane; RPE represents retinal pigmented epithelium. Magnification is 60×.