Figure 6. ASS Expression in Prostate Tissue.
A, Prostate cancer tissue with ASS(+) benign glands (closed arrows) and ASS(−) cancerous glands (open arrows) by immunohistochemistry. B, Left, Normal prostate tissue. Closed arrows point to luminal ASS staining. Right, Prostate cancer tissue with no ASS reactivity. C, mRNA from primary prostate tissue was examined for ASS expression by RT-PCR. D, Normal liver as a positive control for cytoplasmic ASS staining. BPH=Benign prostatic hyperplasia.