EPCAM and cervical carcinoma: In order to explore whether the alteration of EPCAM under SNAI2-overexpressing cells was involved in SNAI2 mediating the stemness of cervical cancer cells, EPCAMhigh and EPCAMlow cells were sorted by FACS from SiHa-SNAI2 cells (Figure 4A), and then cultured to generate tumorspheres.