For immunocytochemistry, cells were processed as already reported [28 (link),29 (link)]. The primary mouse antibody against E-cadherin, N-cadherin, vimentin, VEGF, actin and tubulin were purchased from Santa Cruz Biotechnology Inc. (Santa Cruz, CA, USA). The secondary antibodies Alexa Fluor® 568 conjugate goat anti-mouse was acquired from Thermo Fisher Scientific (Waltham, MA, USA). Nuclei were stained using DAPI 0.2 µg/mL (Sigma). Fluorescence was detected by using a fluorescence microscopy (Leica DM6000). All the images, processed with LAS-X software, are representative fields of three independent experiments.
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