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Nat Med. 2017 Jul;23(7):869-877. doi: 10.1038/nm.4343. Epub 2017 May 29.

Combined mutation in Vhl, Trp53 and Rb1 causes clear cell renal cell carcinoma in mice.

Author information

1
Institute of Physiology, University of Zurich, Zurich, Switzerland.
2
Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland.
3
NEXUS Personalized Health Technologies, ETH Zurich, Zurich, Switzerland.
4
SIB Swiss Institute of Bioinformatics, Zurich, Switzerland.
5
BIOSS Centre for Biological Signalling Studies, University of Freiburg, Freiburg, Germany.
6
Center for Translational Cell Research, Clinic of Internal Medicine I, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
7
Department of Pathology and Molecular Pathology, University Hospital Zurich, Zurich, Switzerland.

Abstract

Clear cell renal cell carcinomas (ccRCCs) frequently exhibit inactivation of the von Hippel-Lindau tumor-suppressor gene, VHL, and often harbor multiple copy-number alterations in genes that regulate cell cycle progression. We show here that modeling these genetic alterations by combined deletion of Vhl, Trp53 and Rb1 specifically in renal epithelial cells in mice caused ccRCC. These tumors arose from proximal tubule epithelial cells and shared molecular markers and mRNA expression profiles with human ccRCC. Exome sequencing revealed that mouse and human ccRCCs exhibit recurrent mutations in genes associated with the primary cilium, uncovering a mutational convergence on this organelle and implicating a subset of ccRCCs as genetic ciliopathies. Different mouse tumors responded differently to standard therapies for advanced human ccRCC, mimicking the range of clinical behaviors in the human disease. Inhibition of hypoxia-inducible factor (HIF)-α transcription factors with acriflavine as third-line therapy had therapeutic effects in some tumors, providing preclinical evidence for further investigation of HIF-α inhibition as a ccRCC treatment. This autochthonous mouse ccRCC model represents a tool to investigate the biology of ccRCC and to identify new treatment strategies.

PMID:
28553932
PMCID:
PMC5509015
DOI:
10.1038/nm.4343
[Indexed for MEDLINE]
Free PMC Article

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