Figure 1.

Expression of c-Jun protein in stromal and epithelial cells. A: Immunoreactivity of c-Jun protein in human BPH. Prostate stroma demonstrates high reactivity with the c-Jun antibody, whereas prostate epithelial cells show no reactivity. Left (low-power) and inset (high-power) represent a portion of nodular BPH, whereas right and inset represent glandular BPH. Arrows represent areas of immunoreactivity with the c-Jun antibody. B: c-Jun protein is expressed in the c-jun^+/+ fibroblasts and to a small degree in the BPH-1 cells, but not expressed in the c-jun^−/− fibroblasts. GAPDH is used as loading control.