Figure 2. Immunohistochemical markers for the most common cell types in the inner retina correspond to random forest classifications.
Identical fields of cells are shown in each row, with immunofluorescence (IF), H&E staining (H&E), and RetFM-J-recognized cells (Auto-class.) shown in successive columns. (A–C) The retinal ganglion cell marker RBPMS is present in a nucleus auto-classified as RGC (open arrowhead) and absent in a nucleus that has features characteristic of a displaced amacrine cell and was auto-classified as DAC+ (solid arrowhead). (D–F) The astrocyte marker GFAP is present in: a nucleus auto-classified as ND (open arrowhead); an elongated nucleus within a vessel marked by COL4, that has features characteristic of a vascular endothelial cell and was auto-classified as a VEC (solid arrow); and an oval nucleus within a vessel marked by COL4, that has features characteristic of a pericyte and was auto-classified as DAC+ (solid arrowhead). (G–L) The microglial marker IBA1 is present in activated (G–I, open arrowhead) and resting (J-L, solid arrowhead) microglia, both of which were auto-classified as DAC+(M–O) The amacrine marker AP-2α is present in a nucleus auto-classified as DAC+ (closed arrowhead) and absent in a nucleus that has features characteristic of a retinal ganglion cell and was auto-classified as RGC (open arrowhead). C57BL/6J mice at 9–12 weeks of age; scale bar = 10 µm.