Ranbp2−/−::Tg-Ranbp2CLDm-HA suppresses the development of apoptotic cell bodies by light-stress. The number of apoptotic cell bodies in 24-week-old Ranbp2−/−::Tg-Ranbp2CLDm-HA and wild type mice are scarce in the absence of light-stress and there is no difference between genotypes (A, B). In the presence of light stress (C, D), 24-week-old Ranbp2−/−::Tg-Ranbp2CLDm-HA show strong suppression of TUNEL+-apoptotic cell bodies (arrowheads) of photoreceptors in the central and peripheral regions of the retina compared to age-matched wild type mice. (B) and (D) are quantitative analyses of representative images in (A) and (C), respectively. Retinal sections were counterstained with DAPI. Data shown represent the mean ± S.D., n=5–6. Legend: NLT, non-light treatment; LT, light treatment (light stress); ONL, outer nuclear (cell bodies) layer of photoreceptors; +/+, wild type; −/-::Tg-Ranbp2CLDm-HA, Ranbp2−/−::Tg-Ranbp2CLDm-HA; n.s., non-significant; Scale bar: 20 μm.