Figure 2. Pla2g7 localization. Immunohistochemistry was performed in juvenile C57BL/6 (P17) frozen sections (A), using no primary antibody conditions as the negative control (B). Pla2g7 was found to be localized throughout the retina. Relatively elevated levels were found in the photoreceptor inner and outer segments, whereas moderate staining was found in the two plexiform layers, as well as the inner nuclear layer (INL) and the retinal ganglion cell (RGC) layer. For each image, the corresponding DIC image is provided. The following abbreviations were used: retinal pigment epithelium (RPE), outer segments (OS), inner segments (IS), outer nuclear layer (ONL), outer plexiform layer (OPL), inner nuclear layer (INL), inner plexiform layer (IPL), and RGC: retinal ganglion cells (RGC). Scale bar in (A) represents 20 μm.