Detection of PIN1 and EMT-related protein expression in normal cervical epithelia, CIN, and CSCC. (A) PIN1 expression detected by immunohistochemistry (IHC) in normal cervical squamous epithelium (A1), CINII (A2), and CSCC (A3). (B) E-cadherin expression by IHC in normal cervical epithelium (B1), CIN (B2), and CSCC (B3). (C, D) Expression of Vimentin and N-cadherin by IHC in normal cervical epithelia (C1, D1), CIN (C2, D2), and CSCC (C3, D3).