SNAI1 and colorectal carcinoma: Snail was overexpressed (≥ 75% positivity) in poorly differentiated CRC (P < 0.0001, Table 1), and the expression of Snail was also strongly elevated in patients with advanced stages (P = 0.009), perineural invasion (P = 0.002), lymphovascular emboli (P = 0.018), and lymph node metastasis (P = 0.001).