A case-only study to identify genetic modifiers of breast cancer risk for BRCA1/BRCA2 mutation carriers.

JulietteCoignard; MichaelLush; JonathanBeesley; Tracy A O'Mara ORCID logo; Joe Dennis ORCID logo; Jonathan P Tyrer ORCID logo; Daniel R Barnes ORCID logo; LesleyMcGuffog; Goska Leslie ORCID logo; Manjeet KBolla; +214 more... Muriel AAdank; SimonaAgata; Thomas Ahearn ORCID logo; KristiinaAittomäki; Irene L Andrulis ORCID logo; HodaAnton-Culver; Volker Arndt ORCID logo; NorbertArnold; Kristan JAronson; Banu KArun; AnnelieAugustinsson; Jacopo Azzollini ORCID logo; Daniel Barrowdale ORCID logo; CarolineBaynes; Heiko Becher ORCID logo; MarinaBermisheva; Leslie Bernstein ORCID logo; KatarzynaBiałkowska; CarlBlomqvist; Stig E Bojesen ORCID logo; Bernardo Bonanni ORCID logo; AkeBorg; Hiltrud Brauch ORCID logo; HermannBrenner; BarbaraBurwinkel; Saundra SBuys; Trinidad Caldés ORCID logo; Maria ACaligo; DanieleCampa; Brian DCarter; Jose ECastelao; JennyChang-Claude; Stephen J Chanock ORCID logo; Wendy K Chung ORCID logo; Kathleen BM Claes ORCID logo; Christine LClarke; GEMO Study Collaborators; EMBRACE Collaborators; J Margriet Collée ORCID logo; Don MConroy; KamilaCzene; Mary BDaly; Peter Devilee ORCID logo; OrlandDiez; Yuan ChunDing; Susan MDomchek; Thilo Dörk ORCID logo; Isabel Dos-Santos-Silva ORCID logo; Alison M Dunning ORCID logo; Miriam Dwek ORCID logo; Diana MEccles; A Heather Eliassen ORCID logo; ChristophEngel; MikaelEriksson; D GarethEvans; Peter AFasching; HenrikFlyger; FlorentiaFostira; EitanFriedman; Lin Fritschi ORCID logo; DebraFrost; ManuelaGago-Dominguez; Susan MGapstur; JudyGarber; VanesaGarcia-Barberan; Montserrat García-Closas ORCID logo; José A García-Sáenz ORCID logo; Mia MGaudet; Simon A Gayther ORCID logo; AndreaGehrig; VassiliosGeorgoulias; Graham G Giles ORCID logo; Andrew KGodwin; Mark SGoldberg; David EGoldgar; AnnaGonzález-Neira; Mark H Greene ORCID logo; Pascal Guénel ORCID logo; LotharHaeberle; EricHahnen; Christopher AHaiman; Niclas Håkansson ORCID logo; PerHall; UteHamann; Patricia AHarrington; Steven N Hart ORCID logo; Wei He ORCID logo; Frans BLHogervorst; Antoinette Hollestelle ORCID logo; John LHopper; Darling JHorcasitas; Peter J Hulick ORCID logo; David JHunter; Evgeny NImyanitov; KConFab Investigators; HEBON Investigators; ABCTB Investigators; AgnesJager; Anna Jakubowska ORCID logo; Paul A James ORCID logo; Uffe Birk Jensen ORCID logo; Esther MJohn; Michael E Jones ORCID logo; RudolfKaaks; Pooja Middha Kapoor ORCID logo; Beth YKarlan; Renske Keeman ORCID logo; ElzaKhusnutdinova; Johanna IKiiski; Yon-DschunKo; Veli-MattiKosma; Peter Kraft ORCID logo; Allison W Kurian ORCID logo; YaelLaitman; Diether Lambrechts ORCID logo; LoicLe Marchand; JennyLester; Fabienne Lesueur ORCID logo; TriciaLindstrom; AdriaLopez-Fernández; Jennifer TLoud; CraigLuccarini; ArtoMannermaa; SiranoushManoukian; SaraMargolin; John WM Martens ORCID logo; NouraMebirouk; AlfonsMeindl; Austin Miller ORCID logo; Roger L Milne ORCID logo; MarcoMontagna; Katherine L Nathanson ORCID logo; Susan LNeuhausen; Heli Nevanlinna ORCID logo; Finn CNielsen; Katie MO'Brien; Olufunmilayo I Olopade ORCID logo; Janet E Olson ORCID logo; HåkanOlsson; AnaOsorio; Laura Ottini ORCID logo; Tjoung-WonPark-Simon; Michael T Parsons ORCID logo; Inge Sokilde Pedersen ORCID logo; Beth Peshkin ORCID logo; Paolo Peterlongo ORCID logo; Julian Peto ORCID logo; Paul DP Pharoah ORCID logo; Kelly-AnnePhillips; Eric CPolley; BrucePoppe; NadegePresneau; Miquel AngelPujana; Kevin Punie ORCID logo; Paolo Radice ORCID logo; JohannaRantala; Muhammad URashid; Gad Rennert ORCID logo; Hedy SRennert; Mark Robson ORCID logo; Atocha Romero ORCID logo; MariaRossing; Emmanouil Saloustros ORCID logo; Dale P Sandler ORCID logo; ReginaSantella; Maren TScheuner; Marjanka K Schmidt ORCID logo; GunnarSchmidt; Christopher Scott ORCID logo; PriyankaSharma; PennySoucy; Melissa CSouthey; John JSpinelli; ZoeSteinsnyder; Jennifer Stone ORCID logo; DominiqueStoppa-Lyonnet; AnthonySwerdlow; Rulla MTamimi; William JTapper; Jack ATaylor; Mary BethTerry; AlexTeulé; Darcy LThull; MarcTischkowitz; Amanda E Toland ORCID logo; DianaTorres; Alison HTrainer; Thérèse Truong ORCID logo; NadineTung; Celine M Vachon ORCID logo; Ana Vega ORCID logo; Joseph Vijai ORCID logo; QinWang; BarbaraWappenschmidt; Clarice RWeinberg; Jeffrey N Weitzel ORCID logo; CamillaWendt; Alicja Wolk ORCID logo; Siddhartha Yadav ORCID logo; Xiaohong RYang; Drakoulis Yannoukakos ORCID logo; WeiZheng; Argyrios Ziogas ORCID logo; Kristin K Zorn ORCID logo; Sue K Park ORCID logo; MadsThomassen; KennethOffit; Rita KSchmutzler; Fergus JCouch; Jacques Simard ORCID logo; GeorgiaChenevix-Trench; Douglas F Easton ORCID logo; NadineAndrieu; Antonis CAntoniou; (2021) A case-only study to identify genetic modifiers of breast cancer risk for BRCA1/BRCA2 mutation carriers. Nature communications, 12 (1). 1078-. ISSN 2041-1723 DOI: 10.1038/s41467-020-20496-3
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Breast cancer (BC) risk for BRCA1 and BRCA2 mutation carriers varies by genetic and familial factors. About 50 common variants have been shown to modify BC risk for mutation carriers. All but three, were identified in general population studies. Other mutation carrier-specific susceptibility variants may exist but studies of mutation carriers have so far been underpowered. We conduct a novel case-only genome-wide association study comparing genotype frequencies between 60,212 general population BC cases and 13,007 cases with BRCA1 or BRCA2 mutations. We identify robust novel associations for 2 variants with BC for BRCA1 and 3 for BRCA2 mutation carriers, P < 10-8, at 5 loci, which are not associated with risk in the general population. They include rs60882887 at 11p11.2 where MADD, SP11 and EIF1, genes previously implicated in BC biology, are predicted as potential targets. These findings will contribute towards customising BC polygenic risk scores for BRCA1 and BRCA2 mutation carriers.



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