Fig. 6From: Old age promotes retinal fibrosis in choroidal neovascularization through circulating fibrocytes and profibrotic macrophagesMacrophage to myofibroblast transition (MMT) in the subretinal fibrotic lesion in young and aged mice. A–D Representative confocal image of retinal cryosections from young (2.5-month, A, B) and aged (15–16-month, C, D) mice with subretinal fibrosis stained for F4/80 (green) and collagen-1 (red). Cell nuclei were stained with DAPI (blue). Images in B and D showing magnified area of boxes in A and C. Arrows indicating F4/80+collagen-1+ cells. Scale bar = 50 µm in (A and C); and 20 µm in B, D. E Number of F4/80+ cells in subretinal fibrotic lesion of young and aged mice. F Percentage of F4/80+collagen-1+ cells among all F4/80+ cells in subretinal fibrotic lesions of young and aged mice. Mean ± SD, n = 18–20 lesions per group from 5 to 6 eyes, **p < 0.01, Student t testBack to article page