The western blot steps were described previously [20 (link)]. The blots were cut prior to hybridisation with antibodies during blotting. The original images of all blots are presented in the Supplementary Information. The proteins were detected using the following primary antibodies: anti-E-cadherin, HDAC1, Flag, vimentin and fibronectin (Cell Signaling Technology, Danvers, MA, USA). Anti-β-actin, TGIF2, ERK and p-ERK (Santa Cruz Biotechnology, Dallas, TX, USA).
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