To explore the importance of UXT in CaP development, we analyzed UXT protein expression by immunohistochemistry (IHC) in prostate tissues including normal prostate (n = 81), benign prostatic hyperplasia (BPH; n = 40), high grade prostatic intraepithelial neoplasia (HGPIN; n = 44), and 378 primary CaP cases (Supplementary Table 1). Here, UXT is linked to benign prostatic hyperplasia.