Mutational activation of the β-Catenin proto-oncogene is a common event in the development of Wilms’ tumors

• Verfasst von: Koesters, Robert [VerfasserIn]
• Verfasst von: Ridder, Rüdiger [VerfasserIn]
• Verfasst von: Kopp-Schneider, Annette [VerfasserIn]
• Verfasst von: Betts, David [VerfasserIn]
• Verfasst von: Adams, Volker [VerfasserIn]
• Verfasst von: Niggli, Felix [VerfasserIn]
• Verfasst von: Briner, Jakob [VerfasserIn]
• Verfasst von: Knebel Doeberitz, Magnus von [VerfasserIn]
• Titel: Mutational activation of the β-Catenin proto-oncogene is a common event in the development of Wilms’ tumors
• Verf.angabe: Robert Koesters, Ruediger Ridder, Annette Kopp-Schneider, David Betts, Volker Adams, Felix Niggli, Jakob Briner, and Magnus von Knebel Doeberitz
• E-Jahr: 1999
• Jahr: Published August 1999
• Umfang: 3 S.
• Fussnoten: Gesehen am 19.10.2020
• Titel Quelle: Enthalten in: Cancer research
• Ort Quelle: Philadelphia, Pa. : AACR, 1916
• Jahr Quelle: 1999
• Band/Heft Quelle: 59(1999), 16 vom: 15. Sept., Seite 3880-3882
• ISSN Quelle: 1538-7445
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1735966754

Abstract

Activation of β-catenin-mediated transcription is the nuclear end point of organ-specific Wnt signaling. In the developing kidney, Wnt-4, a secreted glycoprotein, acts as an autoinducer of the mesenchymal to epithelial transition that underlies normal nephron development. Dysregulation of this epithelial transformation process may lead to Wilms’ tumors (WTs). In this study, we investigated the potential role of the β-catenin proto-oncogene, a candidate downstream target molecule of Wnt-4 signaling, in the development of WTs. In 6 of 40 tumors (15%), mutation analysis revealed heterozygous missense mutations or small deletions that result in the loss of important regulatory phosphorylation sites within the β-catenin protein. These findings indicate that activating β-catenin mutations may play a significant role in the development of WTs and establish a direct link between Wilms’ tumorigenesis and the Wnt signal transduction pathway governing normal kidney development.