SNAI1 and neoplasm: SNAI1 was also shown to induce the expression of mesenchymal markers fibronectin and Zeb1 (Guaita et al., 2002), the latter of which is an EMT‐TF that can promote tumor invasiveness in vitro and is correlated with tumor cell differentiation in vivo (Aigner et al., 2007; Spaderna et al., 2008).