RT Journal Article SR Electronic T1 Population-based targeted sequencing of 54 candidate genes identifies PALB2 as a susceptibility gene for high-grade serous ovarian cancer JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP jmedgenet-2019-106739 DO 10.1136/jmedgenet-2019-106739 A1 Honglin Song A1 Ed M Dicks A1 Jonathan Tyrer A1 Maria Intermaggio A1 Georgia Chenevix-Trench A1 David D Bowtell A1 Nadia Traficante A1 AOCS Group A1 James Brenton A1 Teodora Goranova A1 Karen Hosking A1 Anna Piskorz A1 Elke van Oudenhove A1 Jen Doherty A1 Holly R Harris A1 Mary Anne Rossing A1 Matthias Duerst A1 Thilo Dork A1 Natalia V Bogdanova A1 Francesmary Modugno A1 Kirsten Moysich A1 Kunle Odunsi A1 Roberta Ness A1 Beth Y Karlan A1 Jenny Lester A1 Allan Jensen A1 Susanne Krüger Kjaer A1 Estrid Høgdall A1 Ian G Campbell A1 Conxi Lázaro A1 Miguel Angel Pujara A1 Julie Cunningham A1 Robert Vierkant A1 Stacey J Winham A1 Michelle Hildebrandt A1 Chad Huff A1 Donghui Li A1 Xifeng Wu A1 Yao Yu A1 Jennifer B Permuth A1 Douglas A Levine A1 Joellen M Schildkraut A1 Marjorie J Riggan A1 Andrew Berchuck A1 Penelope M Webb A1 OPAL Study Group A1 Cezary Cybulski A1 Jacek Gronwald A1 Anna Jakubowska A1 Jan Lubinski A1 Jennifer Alsop A1 Patricia Harrington A1 Isaac Chan A1 Usha Menon A1 Celeste L Pearce A1 Anna H Wu A1 Anna de Fazio A1 Catherine J Kennedy A1 Ellen Goode A1 Susan Ramus A1 Simon Gayther A1 Paul Pharoah YR 2020 UL http://jmg.bmj.com/content/early/2020/06/15/jmedgenet-2019-106739.abstract AB Purpose The known epithelial ovarian cancer (EOC) susceptibility genes account for less than 50% of the heritable risk of ovarian cancer suggesting that other susceptibility genes exist. The aim of this study was to evaluate the contribution to ovarian cancer susceptibility of rare deleterious germline variants in a set of candidate genes.Methods We sequenced the coding region of 54 candidate genes in 6385 invasive EOC cases and 6115 controls of broad European ancestry. Genes with an increased frequency of putative deleterious variants in cases versus controls were further examined in an independent set of 14 135 EOC cases and 28 655 controls from the Ovarian Cancer Association Consortium and the UK Biobank. For each gene, we estimated the EOC risks and evaluated associations between germline variant status and clinical characteristics.Results The ORs associated for high-grade serous ovarian cancer were 3.01 for PALB2 (95% CI 1.59 to 5.68; p=0.00068), 1.99 for POLK (95% CI 1.15 to 3.43; p=0.014) and 4.07 for SLX4 (95% CI 1.34 to 12.4; p=0.013). Deleterious mutations in FBXO10 were associated with a reduced risk of disease (OR 0.27, 95% CI 0.07 to 1.00, p=0.049). However, based on the Bayes false discovery probability, only the association for PALB2 in high-grade serous ovarian cancer is likely to represent a true positive.Conclusions We have found strong evidence that carriers of PALB2 deleterious mutations are at increased risk of high-grade serous ovarian cancer. Whether the magnitude of risk is sufficiently high to warrant the inclusion of PALB2 in cancer gene panels for ovarian cancer risk testing is unclear; much larger sample sizes will be needed to provide sufficiently precise estimates for clinical counselling.