Additionally, the decreased protein level of EpCAM was confirmed in mouse xenografted tumor tissues derived from SiHa-Slug cells (the xenografted tumor tissues were collected in our previous study [21]) by western blot (Fig. 2h and Additional file 1: Figure S2D, p < 0.05) and immunohistochemistry (Fig. 2i and Additional file 1: Figure S2F, p < 0.05). Here, EPCAM is linked to neoplasm.