Slug is well known to promote tumor progression and metastasis through the epithelial-mesenchymal transition (EMT), causing loss of cell adhesion and polarity while conferring migratory and invasive properties.
Slug/SNAI2: A transcription factor that belongs to the Snail family. It is best known for its role in regulating epithelial-to-mesenchymal transition (EMT).
Expression: Upregulation of Slug in cancers is often associated with the induction of EMT. This causes cells to lose epithelial markers (like E-cadherin) and gain mesenchymal markers, leading to increased invasiveness.
Metastatic Spread: By promoting EMT, high levels of Slug facilitate tumor cell dissemination and metastasis.
Cancer Stem Cells: There is evidence suggesting that EMT, spurred by factors like Slug, can increase the proportion of cancer stem cells (CSCs). These CSCs are thought to be key players in tumor recurrence and maintenance.
General Trend: High Slug expression in various cancers (including breast, colorectal, head and neck, and others) is frequently correlated with a more aggressive phenotype and poorer clinical outcomes.
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