Fig. 4. Immunohistochemical characterization of the Fgfr2^cn prostate. (A) The prostate sections from 4-week-old mice were immunostained with anti--actin or anti-cytokeratin 8, as indicated. (B) Prostate sections from Fgfr2^cn and control mice at the indicated ages were immunohistochemically stained with anti-p63 antibodies. Inserts: high-magnification views from the same section. (C) Ratios of p63-positive cells in the epithelial compartment were calculated from three samples. Data representing means and s.d. of triplicate samples. F/F, homozygous Fgfr2^flox mice; CN, Fgfr2^cn mice.