RT Journal Article T1 Impact of Wnt/β-Catenin Inhibition on Cell Proliferation through CDC25A Downregulation in Soft Tissue Sarcomas A1 Martinez-Font, Esther A1 Perez-Capo, Marina A1 Ramos, Rafael A1 Felipe, Irene A1 Garcias, Carmen A1 Luna, Pablo A1 Terrasa, Josefa A1 Martin-Broto, Javier A1 Vögler, Oliver A1 Alemany, Regina A1 Obrador-Hevia, Antonia K1 Soft tissue sarcoma K1 Wnt signaling K1 β-catenin K1 CDC25A K1 PRI-724 K1 Trabectedin K1 Sarcoma K1 Vía de señalización Wnt K1 Beta Catenina K1 Trabectedina AB The Wnt signaling pathway is an important cellular mechanism for regulating differentiation processes as well as cell cycle events, and different inhibitors of this pathway, for example, PRI-724, are showing promising results in clinical trials for treatment of advanced pancreatic adenocarcinoma or ovarian cancer. Growing evidence suggests that Wnt signaling may also be crucial for tumorigenesis and progression of soft tissue sarcomas (STS), a malignant neoplasm with few therapeutic options at an advanced state. Our study with several STS cell lines and primary cultures shows that inhibition of Wnt/β-catenin signaling with PRI-724 is able to suppress cell viability/proliferation and to increase cell death rates. TCF/β-catenin-mediated transcriptional activity is decreased in treated cells, leading to downregulation of its target genes CCND1 and CDC25A. The latter was critical because its downregulation via siRNA was able to mimic the effect of PRI-724 on cell cycle arrest and cell death induction. An evaluation of NCBI/GenBank data confirmed that CDC25A mRNA is elevated in STS patients. Importantly, PRI-724 in combination with standard STS chemotherapeutics doxorubicin or trabectedin enhanced their antitumoral effect in a synergistic manner according to isobolographic analysis, suggesting that Wnt inhibition through PRI-724 could be a beneficial combination regime in patients with advanced STS. PB MDPI YR 2020 FD 2020-09-08 LK http://hdl.handle.net/10668/4279 UL http://hdl.handle.net/10668/4279 LA en NO Martinez-Font E, Pérez-Capó M, Ramos R, Felipe I, Garcías C, Luna P, et al. Impact of Wnt/β-Catenin Inhibition on Cell Proliferation through CDC25A Downregulation in Soft Tissue Sarcomas. Cancers. 2020 Sep 8;12(9):2556 DS RISalud RD Apr 11, 2025