Snail is a well-known transcription factor capable of promoting epithelial-mesenchymal transition (EMT) and tumor metastasis [19], inducing cancer cell stemness and differentiation [20], contributing to cancer cell proliferation [21] and survival [22, 23], impacting on metabolism [24], suppressing immune surveillance [25] and inducing drug resistance [26]. The gene discussed is SNAI1; the disease is neoplasm.