Immunohistochemical localization of WARP and collagen VI in articular cartilage.

<p>A, Superficial zone human articular cartilage was stained for collagen VI (panels a, d and g) and WARP (panels b, e and h). The merged images show clear co-localization of collagen VI and WARP in the pericellular environment (panels c, f and i). The scale bar shown in panel (a) is 100 µm. B, Mouse tibial articular cartilage stained with collagen VI (panels a and d) and WARP antisera (panels b and e). Merged images show co-localization of collagen VI and WARP in the chondrocyte pericellular matrix (panels c and f). Scale bar in panel (a) is 200 µm and in (d) 50 µm.