Fig. 3.

Immunostaining for ENSA in human retina. (a) Low-magnification images of the human retina reveal prominent labelling for ENSA in the outer segments of rod photoreceptors and less labelling in the RPE, with weak staining observed in the ganglion cell layer and the inner nuclear layer. (b) Higher-magnification images of the photoreceptor region indicate that the staining for ENSA was mainly located in the inner centre of the rod photoreceptor outer segments, whereas the outer part exhibited markedly lower fluorescence. The staining of rhodopsin indicates the location of rod outer segments. GCL, ganglion cell layer; IPL, inner plexiform layer; INL, inner nuclear layer; OPL, outer plexiform layer; ONL, outer nuclear layer; IS, inner segments of photoreceptors; OS, outer segments of photoreceptors; RPE, retinal pigment epithelium layer. All scale bars represent 10 μm.