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Expression of cathepsins in lung granulomas. Cathepsins K, L and S are expressed in lung granulomas of Apoe-/- mice. (A), trichrome stained section shows well-formed lung granulomas. (B), cathepsin K immunostaining (red - cathepsin K, blue - nuclei). (C), cathepsin L immunostaining (red - cathepsin L, blue - nuclei). (D), cathepsin S immunostaining (red - cathepsin S, blue - nuclei). (A), scale bar 130 μm, (B-D), scale bars 65 μm.
