Activation of Wnt/β-catenin signaling is critical for the tumorigenesis of choroid plexus
The choroid plexus (ChP) is the secretory epithelial structure located in the brain ventricles. Choroid plexus tumors (CPTs) are rare neoplasms predominantly occurring in young patients with intensified malignancy in children. CPT treatment is hindered by insufficient knowledge of tumor pathology an...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
January 2025
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| In: |
Neuro-Oncology
Year: 2025, Jahrgang: 27, Heft: 1, Pages: 106-122 |
| ISSN: | 1523-5866 |
| DOI: | 10.1093/neuonc/noae176 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1093/neuonc/noae176 Verlag, lizenzpflichtig, Volltext: https://academic.oup.com/neuro-oncology/article/27/1/106/7746517?login=true 
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| Verfasserangaben: | Kim Hoa Ho, Marleen Trapp, Catello Guida, Ekaterina L. Ivanova, Anchel De Jaime-Soguero, Ammar Jabali, Christian Thomas, Alena Salasova, Ondřej Bernatík, Chiara Salio, Sandra Horschitz, Martin Hasselblatt, Marco Sassoè-Pognetto, Lukáš Čajánek, Hiroshi Ishikawa, Horst Schroten, Christian Schwerk, Sergio P. Acebrón, Peter Angel, Philipp Koch, and Annarita Patrizi |
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| 245 | 1 | 0 | |a Activation of Wnt/β-catenin signaling is critical for the tumorigenesis of choroid plexus |c Kim Hoa Ho, Marleen Trapp, Catello Guida, Ekaterina L. Ivanova, Anchel De Jaime-Soguero, Ammar Jabali, Christian Thomas, Alena Salasova, Ondřej Bernatík, Chiara Salio, Sandra Horschitz, Martin Hasselblatt, Marco Sassoè-Pognetto, Lukáš Čajánek, Hiroshi Ishikawa, Horst Schroten, Christian Schwerk, Sergio P. Acebrón, Peter Angel, Philipp Koch, and Annarita Patrizi |
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| 500 | |a Activation of Wnt/beta-catenin signaling is critical for the tumorigenesis of choroid plexus | ||
| 500 | |a Im Titel ist "Wnt/β-catenin" mit einem griechischen Buchstaben dargestellt | ||
| 500 | |a Online veröffentlicht: 31. August 2024 | ||
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| 520 | |a The choroid plexus (ChP) is the secretory epithelial structure located in the brain ventricles. Choroid plexus tumors (CPTs) are rare neoplasms predominantly occurring in young patients with intensified malignancy in children. CPT treatment is hindered by insufficient knowledge of tumor pathology and the limited availability of valid models.Genomic and transcriptomic data from CPT patients were analyzed to identify the putative pathological pathway. Cellular and molecular techniques were employed to validate bioinformatic results in CPT patient samples. Pharmacologic inhibition of Wnt/β-catenin signaling was assessed in CPT cells. Cell-based assays of ChP cell lines were performed following CRISPR-Cas9-derived knockout and overexpression of Wnt/β-catenin pathway genes. A 3D CPT model was generated through CRISPR-Cas9-derived knockout of APC.We discovered that Wnt/β-catenin signaling is activated in human CPTs, likely as a consequence of large-scale chromosomal instability events of the CPT genomes. We demonstrated that CPT-derived cells depend on autocrine Wnt/β-catenin signaling for survival. Constitutive Wnt/β-catenin pathway activation, either through knockout of the negative regulator APC or overexpression of the ligand WNT3A, induced tumorigenic properties in ChP 2D in vitro models. Increased activation of the Wnt/β-catenin pathway in ChP organoids, through treatment with a potent GSK3β inhibitor, reduced the differentiation of mature ChP epithelial cells. Remarkably, the depletion of APC was sufficient to induce the oncogenic transformation of ChP organoids.Our research identifies Wnt/β-catenin signaling as a critical driver of CPT tumorigenesis and provides the first 3D in vitro model for future pathological and therapeutic studies of CPT. | ||
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