Modelling TFE renal cell carcinoma in mice reveals a critical role of WNT signaling.
Fiche publication
Date publication
septembre 2016
Journal
eLife
Auteurs
Membres identifiés du Cancéropôle Est :
Pr MALOUF Gabriel
Tous les auteurs :
Calcagnì A, Kors L, Verschuren E, De Cegli R, Zampelli N, Nusco E, Confalonieri S, Bertalot G, Pece S, Settembre C, Malouf GG, Leemans JC, de Heer E, Salvatore M, Peters DJ, Di Fiore PP, Ballabio A
Lien Pubmed
Résumé
-fusion renal cell carcinomas (-fusion ) are caused by chromosomal translocations that lead to overexpression of the and genes (Kauffman et al., 2014). The mechanisms leading to kidney tumor development remain uncharacterized and effective therapies are yet to be identified. Hence, the need to model these diseases in an experimental animal system (Kauffman et al., 2014). Here, we show that kidney-specific overexpression in transgenic mice, resulted in renal clear cells, multi-layered basement membranes, severe cystic pathology, and ultimately papillary carcinomas with hepatic metastases. These features closely recapitulate those observed in both and -mediated human kidney tumors. Analysis of kidney samples revealed transcriptional induction and enhanced signaling of the WNT β-catenin pathway. WNT signaling inhibitors normalized the proliferation rate of primary kidney cells and significantly rescued the disease phenotype in vivo. These data shed new light on the mechanisms underlying fusion and suggest a possible therapeutic strategy based on the inhibition of the WNT pathway.
Référence
Elife. 2016 Sep 26;5: