The primary antibodies used in the present study included rabbit polyclonal anti-AR (sc-816, Santa Cruz Biotechnology, Santa Cruz, CA, USA), rabbit polyclonal anti-ERα (sc-542, Santa Cruz Biotechnology), rabbit polyclonal anti-ERβ (sc-8974, Santa Cruz Biotechnology), rabbit polyclonal anti-P450arom (derived from human Aromatase C-terminus, sc-30086, Santa Cruz Biotechnology). The dilution ranges of AR, ERα, ERβ and Aromatase antibodies for immunohistochemistry were all 1:500. The specificity of AR, ERα, ERβ and P450Arom antibodies have been described in our previous studies on WGS.14 (link),24 (link) The immunohistochemistry kits with the secondary antibody of goat anti-rabbit was applied corresponding with the primary antisera.