RT info:eu-repo/semantics/article T1 About 1% of the breast and ovarian Spanish families testing negative for BRCA1 and BRCA2 are carriers of RAD51D pathogenic variants A1 Gutiérrez-Enríquez, Sara A1 Esteban Cardeñosa, Eva A1 Díaz Rubio, Eduardo A1 Hoya, Miguel de la A1 Gutiérrez Enríquez, Sara A1 Bonache, Sandra A1 Ruíz de Garibay, Gorka A1 Osorio, Ana A1 Santamariña, Marta A1 Ramón y Cajal, Teresa A1 Esteban Cardeñosa, Eva A1 Tenés, Anna A1 Yanowsky, Kira A1 Barroso, Alicia A1 Montalban, Gemma A1 Blanco, Eva A1 Cornet, Mònica A1 Gadea, Neus A1 Infante Sanz, María del Mar A1 Caldés, Trinidad A1 Díaz Rubio, Eduardo A1 Balmaña, Judith A1 Lasa, Adriana A1 Vega, Ana A1 Benítez, Javier A1 Hoya, Miguel de la A1 Diez, Orland K1 RAD51D K1 Cáncer K1 Predisposición genética K1 Cáncer-Prevención K1 24 Ciencias de la Vida AB RAD51D mutations have been recently identified in breast (BC) and ovarian cancer (OC) families. Although an etiological role in OC appears to be present, the association of RAD51D mutations and BC risk is more unclear. We aimed to determine the prevalence of germline RAD51D mutations in Spanish BC/OC families negative for BRCA1/BRCA2 mutations. We analyzed 842 index patients: 491 from BC/OC families, 171 BC families, 51 OC families and 129 patients without family history but with early-onset BC or OC or metachronous BC and OC. Mutation detection was performed with high-resolution melting, denaturing high-performance liquid chromatography or Sanger sequencing. Three mutations were found in four families with BC and OC cases (0.82%). Two were novel: c.1A>T (p.Met1?) and c.667+2_667+23del, leading to the exon 7 skipping and one previously described: c.674C>T (p.Arg232*). All were present in BC/OC families with only one OC. The c.667+2_667+23del cosegregated in the family with one early-onset BC and two bilateral BC cases. We also identified the c.629C>T (p.Ala210Val) variant, which was predicted in silico to be potentially pathogenic. About 1% of the BC and OC Spanish families negative for BRCA1/BRCA2 are carriers of RAD51D mutations. The presence of several BC mutation carriers, albeit in the context of familial OC, suggests an increased risk for BC, which should be taken into account in the follow-up and early detection measures. RAD51D testing should be considered in clinical setting for families with BC and OC, irrespective of the number of OC cases in the family. PB Wiley SN 0020-7136 YR 2014 FD 2014 LK https://uvadoc.uva.es/handle/10324/47405 UL https://uvadoc.uva.es/handle/10324/47405 LA eng NO International Journal of Cancer, 2014, vol. 134, n. 9, p. 2088 NO Producción Científica DS UVaDOC RD 27-nov-2024