Representative higher magnification images of immunohistochemical stain using antibodies to Fas and FasL. Fas stain was noted in cells in glomeruli (arrowheads, panel A), tubules (panel B) and arterial smooth muscle (arrows, panel C). White bar represented 20 μm; L, lumen. FasL expression was observed in glomerular (panel D) and tubular (panel E) cells, where expression was prominent particularly on the lumenal side. Black bars represented 50 and 10 μm, respectively. Co-expression of both Fas (brown color) and FasL (red color) was identified in some tubular cells (panels F, G and H). Bar in panel F represented 100 μm and represented 50 μm in panels G and H.