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Functional annotation of the 2q35 breast cancer risk locus implicates a structural variant in influencing activity of a long-range enhancer element.
Baxter, J. S. ; Johnson, N. ; Tomczyk, K. ; Gillespie, A. ; Maguire, S. ; Brough, R. ; Fachal, L. ; Michailidou, K. ; Bolla, M. K. ; Wang, Q. ; Dennis, J. ; Ahearn, T. U. ; Andrulis, I. L. ; Anton-Culver, H. ; Antonenkova, N. N. ; Arndt, V.DKFZ* ; Aronson, K. J. ; Augustinsson, A. ; Becher, H. ; Beckmann, M. W. ; Behrens, S.DKFZ* ; Benitez, J. ; Bermisheva, M. ; Bogdanova, N. V. ; Bojesen, S. E. ; Brenner, H.DKFZ* ; Brucker, S. Y. ; Cai, Q. ; Campa, D.DKFZ* ; Canzian, F.DKFZ* ; Castelao, J. E. ; Chan, T. L. ; Chang-Claude, J.DKFZ* ; Chanock, S. J. ; Chenevix-Trench, G. ; Choi, J.-Y. ; Clarke, C. L. ; NBCS Collaborators (Collaboration Author) ; Colonna, S. ; Conroy, D. M. ; Couch, F. J. ; Cox, A. ; Cross, S. S. ; Czene, K. ; Daly, M. B. ; Devilee, P. ; Dörk, T. ; Dossus, L. ; Dwek, M. ; Eccles, D. M. ; Ekici, A. B. ; Eliassen, A. H. ; Engel, C. ; Fasching, P. A. ; Figueroa, J. ; Flyger, H. ; Gago-Dominguez, M. ; Gao, C. ; García-Closas, M. ; García-Sáenz, J. A. ; Ghoussaini, M. ; Giles, G. G. ; Goldberg, M. S. ; González-Neira, A. ; Guénel, P. ; Gündert, M.DKFZ* ; Haeberle, L. ; Hahnen, E. ; Haiman, C. A. ; Hall, P. ; Hamann, U.DKFZ* ; Hartman, M. ; Hatse, S. ; Hauke, J. ; Hollestelle, A. ; Hoppe, R. ; Hopper, J. L. ; Hou, M.-F. ; Investigators, k. (Collaboration Author) ; Investigators, A. (Collaboration Author) ; Ito, H. ; Iwasaki, M. ; Jager, A. ; Jakubowska, A. ; Janni, W. ; John, E. M. ; Joseph, V. ; Jung, A.DKFZ* ; Kaaks, R.DKFZ* ; Kang, D. ; Keeman, R. ; Khusnutdinova, E. ; Kim, S.-W. ; Kosma, V.-M. ; Kraft, P. ; Kristensen, V. N. ; Kubelka-Sabit, K. ; Kurian, A. W. ; Kwong, A. ; Lacey, J. V. ; Lambrechts, D. ; Larson, N. L. ; Larsson, S. C. ; Le Marchand, L. ; Lejbkowicz, F. ; Li, J. ; Long, J. ; Lophatananon, A. ; Lubiński, J. ; Mannermaa, A. ; Manoochehri, M.DKFZ* ; Manoukian, S. ; Margolin, S. ; Matsuo, K. ; Mavroudis, D. ; Mayes, R. ; Menon, U. ; Milne, R. L. ; Mohd Taib, N. A. ; Muir, K. ; Muranen, T. A. ; Murphy, R. A. ; Nevanlinna, H. ; O'Brien, K. M. ; Offit, K. ; Olson, J. E. ; Olsson, H. ; Park, S. K. ; Park-Simon, T.-W. ; Patel, A. V. ; Peterlongo, P. ; Peto, J. ; Plaseska-Karanfilska, D. ; Presneau, N. ; Pylkäs, K. ; Rack, B. ; Rennert, G. ; Romero, A. ; Ruebner, M. ; Rüdiger, T. ; Saloustros, E. ; Sandler, D. P. ; Sawyer, E. J. ; Schmidt, M. K. ; Schmutzler, R. K. ; Schneeweiss, A. ; Schoemaker, M. J. ; Shah, M. ; Shen, C.-Y. ; Shu, X.-O. ; Simard, J. ; Southey, M. C. ; Stone, J. ; Surowy, H.DKFZ* ; Swerdlow, A. J. ; Tamimi, R. M. ; Tapper, W. J. ; Taylor, J. A. ; Teo, S. H. ; Teras, L. R. ; Terry, M. B. ; Toland, A. E. ; Tomlinson, I. ; Truong, T. ; Tseng, C.-C. ; Untch, M. ; Vachon, C. M. ; van den Ouweland, A. M. W. ; Wang, S. S. ; Weinberg, C. R. ; Wendt, C. ; Winham, S. J. ; Winqvist, R. ; Wolk, A. ; Wu, A. H. ; Yamaji, T. ; Zheng, W. ; Ziogas, A. ; Pharoah, P. D. P. ; Dunning, A. M. ; Easton, D. F. ; Pettitt, S. J. ; Lord, C. J. ; Haider, S. ; Orr, N. ; Fletcher, O.
2021
Elsevier
New York, NY
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Please use a persistent id in citations: doi:10.1016/j.ajhg.2021.05.013
Abstract: A combination of genetic and functional approaches has identified three independent breast cancer risk loci at 2q35. A recent fine-scale mapping analysis to refine these associations resulted in 1 (signal 1), 5 (signal 2), and 42 (signal 3) credible causal variants at these loci. We used publicly available in silico DNase I and ChIP-seq data with in vitro reporter gene and CRISPR assays to annotate signals 2 and 3. We identified putative regulatory elements that enhanced cell-type-specific transcription from the IGFBP5 promoter at both signals (30- to 40-fold increased expression by the putative regulatory element at signal 2, 2- to 3-fold by the putative regulatory element at signal 3). We further identified one of the five credible causal variants at signal 2, a 1.4 kb deletion (esv3594306), as the likely causal variant; the deletion allele of this variant was associated with an average additional increase in IGFBP5 expression of 1.3-fold (MCF-7) and 2.2-fold (T-47D). We propose a model in which the deletion allele of esv3594306 juxtaposes two transcription factor binding regions (annotated by estrogen receptor alpha ChIP-seq peaks) to generate a single extended regulatory element. This regulatory element increases cell-type-specific expression of the tumor suppressor gene IGFBP5 and, thereby, reduces risk of estrogen receptor-positive breast cancer (odds ratio = 0.77, 95% CI 0.74-0.81, p = 3.1 × 10-31).
Keyword(s): breast cancer risk ; functional annotation ; risk locus
Note: 2021 Jul 1;108(7):1190-1203
Contributing Institute(s):
- C071 Cancer Survivorship (C071)
- C070 Klinische Epidemiologie und Alternf. (C070)
- C020 Epidemiologie von Krebs (C020)
- Präventive Onkologie (C120)
- DKTK HD zentral (HD01)
- Genomische Epidemiologie (C055)
- Molekulare Epidemiologie (C080)
- Molekulargenetik des Mammakarzinoms (B072)
- B070 Funktionelle Genomanalyse (B070)
Research Program(s):
- 313 - Krebsrisikofaktoren und Prävention (POF4-313) (POF4-313)
Appears in the scientific report
2021
Database coverage:
; BIOSIS Previews ; Biological Abstracts ; Clarivate Analytics Master Journal List ; Current Contents - Clinical Medicine ; Current Contents - Life Sciences ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 10 ; JCR ; PubMed Central ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection