Punctuated evolution of prostate cancer genomes.

Punctuated evolution of prostate cancer genomes.
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DOI:
10.1016/j.cell.2013.03.021
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发表时间:
2013-04-25
期刊:
影响因子:
64.5
通讯作者:
Garraway LA
Garraway LA
中科院分区:
生物学1区
文献类型:
--
作者:
Baca SC;Prandi D;Lawrence MS;Mosquera JM;Romanel A;Drier Y;Park K;Kitabayashi N;MacDonald TY;Ghandi M;Van Allen E;Kryukov GV;Sboner A;Theurillat JP;Soong TD;Nickerson E;Auclair D;Tewari A;Beltran H;Onofrio RC;Boysen G;Guiducci C;Barbieri CE;Cibulskis K;Sivachenko A;Carter SL;Saksena G;Voet D;Ramos AH;Winckler W;Cipicchio M;Ardlie K;Kantoff PW;Berger MF;Gabriel SB;Golub TR;Meyerson M;Lander ES;Elemento O;Getz G;Demichelis F;Rubin MA;Garraway LA

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The analysis of exonic DNA from prostate cancers has identified recurrently mutated genes, but the spectrum of genome-wide alterations has not been profiled extensively in this disease. We sequenced the genomes of 57 prostate tumors and matched normal tissues to characterize somatic alterations and to study how they accumulate during oncogenesis and progression. By modeling the genesis of genomic rearrangements, we identified abundant DNA translocations and deletions that arise in a highly interdependent manner. This phenomenon, which we term “chromoplexy”, frequently accounts for the dysregulation of prostate cancer genes and appears to disrupt multiple cancer genes coordinately. Our modeling suggests that chromoplexy may induce considerable genomic derangement over relatively few events in prostate cancer and other neoplasms, supporting a model of punctuated cancer evolution. By characterizing the clonal hierarchy of genomic lesions in prostate tumors, we charted a path of oncogenic events along which chromoplexy may drive prostate carcinogenesis.
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