The analysis of Western blot was carried out as previously described.18 (link) Protein extracts were separated on an 8–10% SDS polyacrylamide gel electrophoresis, followed by the transferring to a nitrocellulose membrane (Millipore). The primary antibodies used in the experiments were as follows: anti-E-Cadherin (ab1416), anti-Vimentin (ab8978), anti-N-Cadherin (ab76057), anti-HK2 (ab227198) and anti-GAPDH (ab181602) (all from Abcam, Cambridge, UK).