Helmholtz Gemeinschaft

Search
Browse
Statistics
Feeds

Gene panel testing of 5589 BRCA1/2-negative index patients with breast cancer in a routine diagnostic setting: results of the German Consortium for Hereditary Breast and Ovarian Cancer

[thumbnail of Original Article]
Preview
PDF (Original Article) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
159kB
[thumbnail of Supporting Information] Other (Supporting Information)
145kB

Item Type:Article
Title:Gene panel testing of 5589 BRCA1/2-negative index patients with breast cancer in a routine diagnostic setting: results of the German Consortium for Hereditary Breast and Ovarian Cancer
Creators Name:Hauke, J., Horvath, J., Groß, E., Gehrig, A., Honisch, E., Hackmann, K., Schmidt, G., Arnold, N., Faust, U., Sutter, C., Hentschel, J., Wang-Gohrke, S., Smogavec, M., Weber, B.H.F., Weber-Lassalle, N., Weber-Lassalle, K., Borde, J., Ernst, C., Altmüller, J., Volk, A.E., Thiele, H., Hübbel, V., Nürnberg, P., Keupp, K., Versmold, B., Pohl, E., Kubisch, C., Grill, S., Paul, V., Herold, N., Lichey, N., Rhiem, K., Ditsch, N., Ruckert, C., Wappenschmidt, B., Auber, B., Rump, A., Niederacher, D., Haaf, T., Ramser, J., Dworniczak, B., Engel, C., Meindl, A., Schmutzler, R.K. and Hahnen, E.
Abstract:The prevalence of germ line mutations in non-BRCA1/2 genes associated with hereditary breast cancer (BC) is low, and the role of some of these genes in BC predisposition and pathogenesis is conflicting. In this study, 5589 consecutive BC index patients negative for pathogenic BRCA1/2 mutations and 2189 female controls were screened for germ line mutations in eight cancer predisposition genes (ATM, CDH1, CHEK2, NBN, PALB2, RAD51C, RAD51D, and TP53). All patients met the inclusion criteria of the German Consortium for Hereditary Breast and Ovarian Cancer for germ line testing. The highest mutation prevalence was observed in the CHEK2 gene (2.5%), followed by ATM (1.5%) and PALB2 (1.2%). The mutation prevalence in each of the remaining genes was 0.3% or lower. Using Exome Aggregation Consortium control data, we confirm significant associations of heterozygous germ line mutations with BC for ATM (OR: 3.63, 95%CI: 2.67-4.94), CDH1 (OR: 17.04, 95%CI: 3.54-82), CHEK2 (OR: 2.93, 95%CI: 2.29-3.75), PALB2 (OR: 9.53, 95%CI: 6.25-14.51), and TP53 (OR: 7.30, 95%CI: 1.22-43.68). NBN germ line mutations were not significantly associated with BC risk (OR:1.39, 95%CI: 0.73-2.64). Due to their low mutation prevalence, the RAD51C and RAD51D genes require further investigation. Compared with control datasets, predicted damaging rare missense variants were significantly more prevalent in CHEK2 and TP53 in BC index patients. Compared with the overall sample, only TP53 mutation carriers show a significantly younger age at first BC diagnosis. We demonstrate a significant association of deleterious variants in the CHEK2, PALB2, and TP53 genes with bilateral BC. Both, ATM and CHEK2, were negatively associated with triple-negative breast cancer (TNBC) and estrogen receptor (ER)-negative tumor phenotypes. A particularly high CHEK2 mutation prevalence (5.2%) was observed in patients with human epidermal growth factor receptor 2 (HER2)-positive tumors.
Keywords:Breast Cancer Predisposition, Hereditary Breast Cancer
Source:Cancer Medicine
ISSN:2045-7634
Publisher:Wiley
Volume:7
Number:4
Page Range:1349-1358
Date:April 2018
Official Publication:https://doi.org/10.1002/cam4.1376
PubMed:View item in PubMed

Repository Staff Only: item control page

Downloads

Downloads per month over past year

Open Access
MDC Library