Fig. 6. Caveolin-2 co-localizes with CD 36 in testis. (A) Immunostaining of 15P-1 cells with caveolin-1 antibodies (left) and corresponding DNA staining with DAPI (right). (B) Immunostaining with caveolin-1 antibodies of 15P-1 cells co-culture with germ cells (left) and corresponding DNA staining with DAPI (right). (C) Immunofluorescent labelling of CD36 (left) and caveolin-2 (red) with DNA staining (right) on cryosection of adult mouse testis. CD36 and caveolin-2 proteins co-localized (arrowhead) at the vicinity of rounded and elongated spermatids in the apical part of the tubules (bar, 25 µm). (D) Overview of the adluminal part of the seminiferous epithelium of an adult mouse (left; bar, 1.6 µm) and enlargement of the white square (right; bar, 300 nm). CD36 and caveolin immunolocalized at the plasma membrane using gold beads of two different sizes (respectively 15 nm and 10 nm, arrowhead).