Rare Variation in TET2 Is Associated with Clinically Relevant Prostate Carcinoma in African Americans
Autor: | Daniel C. Koboldt, David E. Larson, Ingrid B. Borecki, Elaine R. Mardis, Bin Gui, Aldi T. Kraja, William B. Isaacs, Richard K. Wilson, Robert S. Fulton, Adam S. Kibel, Li Jia, Krishna-Latha Kanchi |
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Rok vydání: | 2016 |
Předmět: |
Male
0301 basic medicine DNA Repair Epidemiology DNA repair DNA Mutational Analysis Population Biology Bioinformatics White People Article Dioxygenases 03 medical and health sciences Prostate cancer 0302 clinical medicine Proto-Oncogene Proteins medicine Humans Genetic Predisposition to Disease Clinical significance education Exome sequencing Aged BRCA2 Protein education.field_of_study Polymorphism Genetic BRCA1 Protein Prostatic Neoplasms DNA Repair Pathway medicine.disease Black or African American DNA-Binding Proteins MSH6 030104 developmental biology Oncology 030220 oncology & carcinogenesis Poly(ADP-ribose) Polymerases |
Zdroj: | Cancer Epidemiology, Biomarkers & Prevention. 25:1456-1463 |
ISSN: | 1538-7755 1055-9965 |
Popis: | Background: Common variants have been associated with prostate cancer risk. Unfortunately, few are reproducibly linked to aggressive disease, the phenotype of greatest clinical relevance. One possible explanation is that rare genetic variants underlie a significant proportion of the risk for aggressive disease. Method: To identify such variants, we performed a two-stage approach using whole-exome sequencing followed by targeted sequencing of 800 genes in 652 aggressive prostate cancer patients and 752 disease-free controls in both African and European Americans. In each population, we tested rare variants for association using two gene-based aggregation tests. We established a study-wide significance threshold of 3.125 × 10−5 to correct for multiple testing. Results: TET2 in African Americans was associated with aggressive disease, with 24.4% of cases harboring a rare deleterious variant compared with 9.6% of controls (FET P = 1.84 × 10−5, OR = 3.0; SKAT-O P = 2.74 × 10−5). We report 8 additional genes with suggestive evidence of association, including the DNA repair genes PARP2 and MSH6. Finally, we observed an excess of rare truncation variants in 5 genes, including the DNA repair genes MSH6, BRCA1, and BRCA2. This adds to the growing body of evidence that DNA repair pathway defects may influence susceptibility to aggressive prostate cancer. Conclusions: Our findings suggest that rare variants influence risk of clinically relevant prostate cancer and, if validated, could serve to identify men for screening, prophylaxis, and treatment. Impact: This study provides evidence that rare variants in TET2 may help identify African American men at increased risk for clinically relevant prostate cancer. Cancer Epidemiol Biomarkers Prev; 25(11); 1456–63. ©2016 AACR. |
Databáze: | OpenAIRE |
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