Targeted exome sequencing in clear cell renal cell carcinoma tumors suggests aberrant chromatin regulation as a crucial step in ccRCC development

被引:68
作者
Duns, Gerben [1 ]
Hofstra, Robert M. W. [1 ]
Sietzema, Jantine G. [1 ]
Hollema, Harry [2 ]
van Duivenbode, Inge [1 ]
Kuik, Angela [1 ]
Giezen, Cor [1 ]
Osinga, Jan [1 ]
Bergsma, Jelkje J. [1 ]
Bijnen, Harrie [1 ]
van der Vlies, Pieter [1 ]
van den Berg, Eva [1 ]
Kok, Klaas [1 ]
机构
[1] Univ Groningen, Dept Genet, Univ Med Ctr Groningen, NL-9700 AB Groningen, Netherlands
[2] Univ Groningen, Dept Pathol & Med Biol, Univ Med Ctr Groningen, NL-9700 AB Groningen, Netherlands
关键词
ccRCC; chromosome; 3; tumor suppressor; SETD2; PBRM1; BAP1; chromatin remodeling; VHL; SENESCENCE; INDUCTION; COMPLEX; BAF180; CANCER;
D O I
10.1002/humu.22090
中图分类号
Q3 [遗传学];
学科分类号
071007 [遗传学];
摘要
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. Hum Mutat 33:10591062, 2012. (c) 2012 Wiley Periodicals, Inc.
引用
收藏
页码:1059 / 1062
页数:4
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