Fig. 1From: Mo-derived perivascular macrophage recruitment protects against endothelial cell death in retinal vein occlusionBRVO increases the number of perivascular and parenchymal mononuclear phagocytes. Photographs of the eyecup and retinal flatmount of the retina with the visible vein occlusion site (*), dilated vein, and hemorrhages at day 1 after BRVO. Dotted line shows the dissected area of the retina used for RT-PCR and the dotted rectangle the area where perivascular Mφs were counted during the study (a). Icam-1, cd11b, and F4/80 real-time RT-PCRs in the occluded retina at indicated time points. The results were normalized to S26 expression. Values in histograms are mean ± SEM of mRNA expression of occluded area from 4 eyes per group (b, n = 6, Mann-Whitney t test; Icam-1: *P = 0.0095 day 0 versus day 1, *P = 0.0047 day 0 versus day 3, and *P = 0.0095 day 0 versus day 7; Cd11b: *P = 0.0095 day 0 versus day 3; F4/80: *P = 0.0424 day 0 versus day 1, *P = 0.0047 day 0 versus day 3, and *P = 0.0095 day 0 versus day 7). Representative images of the inner retina of Iba1 (green) and ColIV (red) double-labeled retinal flatmounts of control (c) and occluded vein area 3 days after occlusion (d). Magnification on control vein in the upstream retina (f) and on the occluded vein (g) 3 days after occlusion. Quantification of the parenchymal Iba1+ Mφs per square millimeter (e, Mann-Whitney t test, Iba1+ cells/mm of vein: day 0 versus d3day *P = 0.0229 and day 0 versus day 7 *P = 0.0424) and the number of perivascular Iba1+ Mφs per millimeter of vein (h, Mann-Whitney t test, Iba1+ cells/mm2: day 0 versus day 3 *P = 0.0229 and day 0 versus day 7 *P = 0.0424) of control retinas and in the occluded vein 3 and 7 days after the occlusion. Icam-1, intracellular adhesion molecule 1; Iba1, ionized calcium-binding adapter molecule 1. Scale bar c and d = 10 μm. Inset = 5 μm. Scale bar e and f = 50 μmBack to article page