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. 2022 Jan 11;114(1):109-122.
doi: 10.1093/jnci/djab147.

Breast and Prostate Cancer Risks for Male BRCA1 and BRCA2 Pathogenic Variant Carriers Using Polygenic Risk Scores

Daniel R Barnes  1 Valentina Silvestri  2 Goska Leslie  1 Lesley McGuffog  1 Joe Dennis  1 Xin Yang  1 Julian Adlard  3 Bjarni A Agnarsson  4   5 Munaza Ahmed  6 Kristiina Aittomäki  7 Irene L Andrulis  8   9 Adalgeir Arason  4   10 Norbert Arnold  11   12 Bernd Auber  13 Jacopo Azzollini  14 Judith Balmaña  15   16 Rosa B Barkardottir  4   10 Daniel Barrowdale  1 Julian Barwell  17 Muriel Belotti  18 Javier Benitez  19   20 Pascaline Berthet  21 Susanne E Boonen  22 Åke Borg  23 Aniko Bozsik  24 Angela F Brady  25 Paul Brennan  26 Carole Brewer  27 Joan Brunet  28 Agostino Bucalo  2 Saundra S Buys  29 Trinidad Caldés  30 Maria A Caligo  31 Ian Campbell  32   33 Hayley Cassingham  34 Lise Lotte Christensen  35 Giulia Cini  36 Kathleen B M Claes  37 GEMO Study CollaboratorsEMBRACE CollaboratorsJackie Cook  38 Anna Coppa  39   40 Laura Cortesi  40 Giuseppe Damante  41 Esther Darder  28 Rosemarie Davidson  42 Miguel de la Hoya  30 Kim De Leeneer  37 Robin de Putter  37 Jesús Del Valle  28 Orland Diez  15   43 Yuan Chun Ding  44 Susan M Domchek  45 Alan Donaldson  46 Jacqueline Eason  47 Ros Eeles  48 Christoph Engel  49   50 D Gareth Evans  51   52 Lidia Feliubadaló  28 Florentia Fostira  53 Megan Frone  54 Debra Frost  1 David Gallagher  55 Andrea Gehrig  56 Sophie Giraud  57 Gord Glendon  8 Andrew K Godwin  58 David E Goldgar  59 Mark H Greene  54 Helen Gregory  60 Eva Gross  61 Eric Hahnen  62   63 Ute Hamann  64 Thomas V O Hansen  65 Helen Hanson  66 Julia Hentschel  67 Judit Horvath  68 KConFab InvestigatorsHEBON InvestigatorsLouise Izatt  69 Angel Izquierdo  28 Paul A James  33   70 Ramunas Janavicius  71   72 Uffe Birk Jensen  73 Oskar Th Johannsson  74 Esther M John  75   76 Gero Kramer  77 Lone Kroeldrup  22 Torben A Kruse  22 Charlotte Lautrup  78   79 Conxi Lazaro  28 Fabienne Lesueur  80   81   82 Adria Lopez-Fernández  15 Phuong L Mai  83 Siranoush Manoukian  14 Zoltan Matrai  84 Laura Matricardi  85 Kara N Maxwell  86 Noura Mebirouk  80   81   82 Alfons Meindl  61 Marco Montagna  85 Alvaro N Monteiro  87 Patrick J Morrison  88 Taru A Muranen  89 Alex Murray  90 Katherine L Nathanson  45 Susan L Neuhausen  44 Heli Nevanlinna  89 Tu Nguyen-Dumont  91   92 Dieter Niederacher  93 Edith Olah  24 Olufunmilayo I Olopade  94 Domenico Palli  95 Michael T Parsons  96 Inge Sokilde Pedersen  79   97   98 Bernard Peissel  14 Pedro Perez-Segura  30 Paolo Peterlongo  99 Annabeth H Petersen  100 Pedro Pinto  101 Mary E Porteous  102 Caroline Pottinger  90 Miquel Angel Pujana  103 Paolo Radice  104 Juliane Ramser  105 Johanna Rantala  106 Mark Robson  107 Mark T Rogers  90 Karina Rønlund  100 Andreas Rump  108 Ana María Sánchez de Abajo  109 Payal D Shah  86 Saba Sharif  110 Lucy E Side  111 Christian F Singer  112 Zsofia Stadler  107 Linda Steele  44 Dominique Stoppa-Lyonnet  18   113   114 Christian Sutter  115 Yen Yen Tan  116 Manuel R Teixeira  101   117 Alex Teulé  28 Darcy L Thull  118 Marc Tischkowitz  119   120 Amanda E Toland  121 Stefania Tommasi  122 Angela Toss  40 Alison H Trainer  70   123 Vishakha Tripathi  69 Virginia Valentini  2 Christi J van Asperen  124 Marta Venturelli  40 Alessandra Viel  36 Joseph Vijai  107   125 Lisa Walker  126 Shan Wang-Gohrke  127 Barbara Wappenschmidt  62   63 Anna Whaite  128 Ines Zanna  95 Kenneth Offit  107   125 Mads Thomassen  22 Fergus J Couch  129 Rita K Schmutzler  62   63   130 Jacques Simard  131 Douglas F Easton  1   132 Georgia Chenevix-Trench  96 Antonis C Antoniou  1 Laura Ottini  2 Consortium of Investigators of Modifiers of BRCA1 and BRCA2
Affiliations

Breast and Prostate Cancer Risks for Male BRCA1 and BRCA2 Pathogenic Variant Carriers Using Polygenic Risk Scores

Daniel R Barnes et al. J Natl Cancer Inst. .

Abstract

Background: Recent population-based female breast cancer and prostate cancer polygenic risk scores (PRS) have been developed. We assessed the associations of these PRS with breast and prostate cancer risks for male BRCA1 and BRCA2 pathogenic variant carriers.

Methods: 483 BRCA1 and 1318 BRCA2 European ancestry male carriers were available from the Consortium of Investigators of Modifiers of BRCA1/2 (CIMBA). A 147-single nucleotide polymorphism (SNP) prostate cancer PRS (PRSPC) and a 313-SNP breast cancer PRS were evaluated. There were 3 versions of the breast cancer PRS, optimized to predict overall (PRSBC), estrogen receptor (ER)-negative (PRSER-), or ER-positive (PRSER+) breast cancer risk.

Results: PRSER+ yielded the strongest association with breast cancer risk. The odds ratios (ORs) per PRSER+ standard deviation estimates were 1.40 (95% confidence interval [CI] =1.07 to 1.83) for BRCA1 and 1.33 (95% CI = 1.16 to 1.52) for BRCA2 carriers. PRSPC was associated with prostate cancer risk for BRCA1 (OR = 1.73, 95% CI = 1.28 to 2.33) and BRCA2 (OR = 1.60, 95% CI = 1.34 to 1.91) carriers. The estimated breast cancer odds ratios were larger after adjusting for female relative breast cancer family history. By age 85 years, for BRCA2 carriers, the breast cancer risk varied from 7.7% to 18.4% and prostate cancer risk from 34.1% to 87.6% between the 5th and 95th percentiles of the PRS distributions.

Conclusions: Population-based prostate and female breast cancer PRS are associated with a wide range of absolute breast and prostate cancer risks for male BRCA1 and BRCA2 carriers. These findings warrant further investigation aimed at providing personalized cancer risks for male carriers and informing clinical management.

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Figures

Figure 1.
Figure 1.
The predicted absolute risks of developing breast cancer and prostate cancer by PRS percentile. Risks were calculated assuming the per standard deviation ratio estimates in the combined sample of BRCA1 and BRCA2 carriers (Supplementary Tables 6 and 7). (A) The absolute risks of developing breast cancer for BRCA2 carriers by PRSER+ percentiles. (B) The absolute risks of developing prostate cancer for BRCA1 carriers by PRSPC percentiles. (C) The absolute risks of developing prostate cancer for BRCA2 carriers by PRSPC percentiles. PRS = polygenic risk scores; PRSER+ = ER-positive breast cancer PRS.
Figure 2.
Figure 2.
The predicted 10-year risks of developing breast cancer and prostate cancer by PRS percentile. Ten-year risks were calculated from the absolute risks of developing breast cancer or prostate cancer (Figure 1). (A) The 10-year risks of developing breast cancer for BRCA2 carriers by PRSER+ percentiles. (B) The 10-year risks of developing prostate cancer for BRCA1 pathogenic variant carriers by PRSPC percentiles. (C) The 10-year risks of developing prostate cancer for BRCA2 pathogenic variant carriers by PRSPC percentiles. PRS = polygenic risk scores PRSER+ = ER-positive breast cancer PRS.

Comment in

  • Urological Oncology: Prostate Cancer.
    Taneja SS. Taneja SS. J Urol. 2022 Mar;207(3):735-738. doi: 10.1097/JU.0000000000002377. Epub 2021 Dec 17. J Urol. 2022. PMID: 34915718 No abstract available.

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