Figure 4: Immunohistochemistry for AR and PCNA. (a-d) AR immunolocalization in both epithelial and stromal compartments of the prostate in all experimental groups. e-h demonstrate the immunolocalization of PCNA in the prostates. Observe the high number of PCNA-positive cells in the prostates of the TG + T group (h). ep: epithelium; l: lumen; s: stroma; arrows: positive cells to AR and PCNA. (a and e) C, (b and f) C + T, (c and g) TG and (d and h) TG + T. Scale bar: 20 μm in a-h .