Fig. 1

a: P-cadherin Intensity Score (IS); P-cadherin expression was scored from 0 to 3 based on the staining intensity. P-cadherin expression appears mainly in the membrane of tumor cells. Bars show 50 μm. b: Validation of P-cadherin antibody; Extracts from P-cadherin High and Low tumors were immunoblotted. Extract of chorionic villi was used as a positive control. The images of original blots were cropped and edited by PhotoDirector10 (CyberLink, Tokyo, Japan). The original full-length blots are presented in Supplementary Figures 2 and 3