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Título: | Wnt/β-Catenin Signaling Contributes to Paclitaxel Resistance in Bladder Cancer Cells with Cancer Stem Cell-Like Properties |
Autor: | Jiménez-Guerrero, Rocío CSIC ORCID; Belmonte-Fernández, Alejandro; Flores, M. Luz CSIC; González-Moreno, Mónica; Perez-Valderrama, Begoña; Romero, Francisco; Japón, Miguel A. CSIC ORCID; Sáez, Carmen CSIC ORCID | Palabras clave: | Wnt/β-catenin pathway CSC phenotype Paclitaxel resistance Bladder cancer |
Fecha de publicación: | 2022 | Editor: | Multidisciplinary Digital Publishing Institute | Citación: | International Journal of Molecular Sciences 23(1): 450 (2022) | Resumen: | The Wnt/β-catenin pathway plays an important role in tumor progression and chemotherapy resistance and seems to be essential for the maintenance of cancer stem cells (CSC) in several tumor types. However, the interplay of these factors has not been fully addressed in bladder cancer. Here, our goal was to analyze the role of the Wnt/β-catenin pathway in paclitaxel resistance and to study the therapeutic efficacy of its inhibition in bladder cancer cells, as well as to determine its influence in the maintenance of the CSC-like phenotype in bladder cancer. Our results show that paclitaxel-resistant HT1197 cells have hyperactivation of the Wnt/β-catenin pathway and increased CSC-like properties compared with paclitaxel-sensitive 5637 cells. Paclitaxel sensitivity diminishes in 5637 cells after β-catenin overexpression or when they are grown as tumorspheres, enriched for the CSC-like phenotype. Additionally, downregulation of β-catenin or inhibition with XAV939 sensitizes HT1197 cells to paclitaxel. Moreover, a subset of muscle-invasive bladder carcinomas shows aberrant expression of β-catenin that associates with positive expression of the CSC marker ALDH1A1. In conclusion, we demonstrate that Wnt/β-catenin signaling contributes to paclitaxel resistance in bladder cancer cells with CSC-like properties. | Versión del editor: | https://doi.org/10.3390/ijms23010450 | URI: | http://hdl.handle.net/10261/306890 | DOI: | 10.3390/ijms23010450 | ISSN: | 1661-6596 | E-ISSN: | 1422-0067 |
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Catenin Signaling_Jiménez_PV_Art2022.pdf | 3,12 MB | Adobe PDF | Visualizar/Abrir |
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