Wnt/CTNNB1 Signal Transduction Pathway Inhibits the Expression of ZFP36 in Squamous Cell Carcinoma, by Inducing Transcriptional Repressors SNAI1, SLUG and TWIST

oleh: Emma D. Zanfi, Sebastian Fantini, Roberta Lotti, Matteo Bertesi, Alessandra Marconi, Alexis Grande, Rossella Manfredini, Carlo Pincelli, Tommaso Zanocco-Marani

Format: Article
Diterbitkan: MDPI AG 2020-08-01

Deskripsi

The Wnt/CTNNB1 pathway is often deregulated in epithelial tumors. The <i>ZFP36</i> gene, encoding the mRNA binding protein Tristetraprolin (TTP), is downregulated in several cancers, where it has been described to behave as a tumor suppressor. By this report, we show that Wnt/CTNNB1 pathway is constitutively activated, and <i>ZFP36</i> expression is downregulated in Squamous Cell Carcinoma (SCC) cell lines compared to normal keratinocytes. Moreover, we suggest that the decrease of <i>ZFP36</i> expression might depend on the activity of transcriptional repressors SNAI1, SLUG and TWIST, whose expression is induced by Wnt/CTNNB1, highlighting a potential regulatory mechanism underlying <i>ZFP36</i> downregulation in epithelial cancers.