Immunofluorescence analysis of cell proliferation and differentiation in CNO-treated monkey B and vehicle-treated monkey C. The yellow arrow indicates c-Fos co-localization with dTomato. Cell nuclei were counterstained with 4, 6-diamidino-2-phenylindole (DAPI). (Top) scale bars, 250 m. (Bottom; magnified images) scale bars, 50 m. LV, lateral ventricle.