Snail family transcriptional repressor 1 (SNAI1)

Snail family transcriptional repressor 1 (SNAI1), also known simply as Snail, is a **zinc-finger transcription factor** encoded by the human SNAI1 gene. It is a master regulator of epithelial–mesenchymal transition (EMT), a process by which epithelial cells acquire mesenchymal, migratory, and invasive properties. SNAI1 functions by binding to E-box sequences in DNA and repressing the expression of genes such as E-cadherin, leading to decreased cell–cell adhesion and increased cell migration. Its activity is essential in embryonic development for mesoderm formation and neural crest migration, but also plays a key pathological role by promoting tumor progression, metastasis, resistance to apoptosis, and cancer recurrence through EMT induction. Beyond EMT, SNAI1 also influences cell survival, immune regulation, stem cell maintenance, and is tightly regulated by various signaling pathways including WNT and FGF. Snail expression and activity are considered biomarkers for poor prognosis and metastatic potential in various cancers[1][2][4][6][8].

Other names

SnailZinc finger protein SNAI1SNAIL1Snail1

(for candidate drugs/inhibitors) Transcriptional derepression of E-cadherin, inhibition of EMT-associated transcriptional networks, modulation of cell survival pathways.