Large-scale cancer sequencing data enable discovery of rare germline cancer susceptibility variants. Here we systematically analyse 4,034 cases from The Cancer Genome Atlas cancer cases representing 12 cancer types. We find that the frequency of rare germline truncations in 114 cancer-susceptibility-associated genes varies widely, from 4% (acute myeloid leukaemia (AML)) to 19% (ovarian cancer), with a notably high frequency of 11% in stomach cancer. Burden testing identifies 13 cancer genes with significant enrichment of rare truncations, some associated with specific cancers (for example, RAD51C, PALB2 and MSH6 in AML, stomach and endometrial cancers, respectively). Significant, tumour-specific loss of heterozygosity occurs in nine genes (ATM, BAP1, BRCA1/2, BRIP1, FANCM, PALB2 and RAD51C/D). Moreover, our homology-directed repair assay of 68 BRCA1 rare missense variants supports the utility of allelic enrichment analysis for characterizing variants of unknown significance. The scale of this analysis and the somatic-germline integration enable the detection of rare variants that may affect individual susceptibility to tumour development, a critical step toward precision medicine. Published sequencing data sets of cancer samples could be used to identify genetic variants associated with the risk of developing cancer. Here, Luet al. analyse over 4,000 tumour-normal pairs to reveal variable frequencies of inherited susceptibilities across 12 cancer types and find enrichment of functionally validated missense variants of unknown significance.
Patterns and functional implications of rare germline variants across 12 cancer types
Charles Lu,Mingchao Xie,M. Wendl,Jiayin Wang,M. McLellan,Mark D. M. Leiserson,Kuan-lin Huang,Matthew A. Wyczalkowski,R. Jayasinghe,Tapahsama Banerjee,Jie Ning,P. Tripathi,Qunyuan Zhang,Beifang Niu,Kai Ye,Heather K. Schmidt,R. Fulton,Joshua F. McMichael,Prag Batra,C. Kandoth,Maheetha Bharadwaj,D. Koboldt,Christopher A. Miller,K. Kanchi,James M. Eldred,D. Larson,J. Welch,M. You,B. Ozenberger,R. Govindan,M. Walter,M. Ellis,E. Mardis,T. Graubert,J. Dipersio,T. Ley,R. Wilson,P. Goodfellow,Benjamin J. Raphael,F. Chen,Kimberly J. Johnson,J. Parvin,L. Ding
Published 2015 in Nature Communications
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- Publication year
2015
- Venue
Nature Communications
- Publication date
2015-12-22
- Fields of study
Biology, Medicine
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Semantic Scholar, PubMed
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