Fig. 3.
PSA is expressed in prostatic adenocarcinoma and LNCaP cells but not in prostatic SCNC and PC3 cells. A: Immunohistochemical study with an anti-PSA antibody shows positive staining in prostatic adenocarcinoma but not SCNC. The LNCaP xenograft tumor cells are positive for PSA but the PC3 xenograft tumors are negative (IHC, 400×). B: Western blot analysis shows that LNCaP cells express PSA but the PC3 cells do not. [Color figure can be viewed in the online issue, which is available at wileyonlinelibrary.com.]