PA2G4 and neoplasm: Contrary to previously published in vitro data describing that Ebp1 can inhibit the expression of AR, our in vivo results illustrated that cytoplasmic Ebp1 positively correlated with AR nuclear expression in normal adjacent (Spearman = 0.295, P = 0.032) and tumor tissues (Spearman = 0.374, P = 0.003) (Table 3).