WWOX, Elf5, Snail1 and EMT-related protein expression in EOC tissues and adjacent normal tissues. (A) Low expression of WWOX in EOC (×400). (B) High expression of WWOX in adjacent tissues (×400). (C) Low expression of Elf5 in EOC (×400). (D) High expression of Elf5 in adjacent tissues (×400). (E) High expression of Snail1 in EOC (×400). (F) Low expression of Snail1 in adjacent tissues (×400). (G) Low expression of E-cadherin in EOC (×400). (H) High expression of E-cadherin in adjacent tissues (×400). (I) High expression of N-cadherin in EOC (×400). (J) Low expression of N-cadherin in adjacent tissues (×400). (K) High expression of vimentin in EOC (×400). (L) Low expression of vimentin in adjacent tissues (×400). WWOX, WW domain-containing oxidoreductase; EMT, epithelial-mesenchymal transition; EOC, epithelial ovarian cancer.