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- Title
Targeted exome sequencing in clear cell renal cell carcinoma tumors suggests aberrant chromatin regulation as a crucial step in ccRCC development.
- Authors
Duns, Gerben; Hofstra, Robert M W; Sietzema, Jantine G; Hollema, Harry; van Duivenbode, Inge; Kuik, Angela; Giezen, Cor; Jan, Osinga; Bergsma, Jelkje J; Bijnen, Harrie; van der Vlies, Pieter; van den Berg, Eva; Kok, Klaas
- Abstract
Clear cell renal cell carcinomas are characterized by 3p loss, and by inactivation of Von Hippel Lindau (VHL), a tumorsuppressor gene located at 3p25. Recently, SETD2, located at 3p21, was identified as a new candidate ccRCC tumor-suppressor gene. The combined mutational frequency in ccRCC tumors of VHL and SETD2 suggests that there are still undiscovered tumor-suppressor genes on 3p. We screened all genes on 3p for mutations in 10 primary ccRCC tumors using exome-sequencing. We identified inactivating mutations in VHL, PBRM1, and BAP1. Sequencing of PBRM1 in ccRCC-derived cell lines confirmed its frequent inactivation in ccRCC. PBRM1 encodes for BAF180, the chromatin targeting subunit of the SWI/SNF complex. BAP1 encodes for BRCA1 associated protein-1, involved in histone deubiquitination. Taken together, the accumulating data suggest an important role for aberrant chromatin regulation in ccRCC development.
- Publication
Human mutation, 2012, Vol 33, Issue 7, p1059
- ISSN
1098-1004
- Publication type
Journal Article
- DOI
10.1002/humu.22090