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The transfer of multigene panel testing for hereditary breast and ovarian cancer to healthcare: What are the implications for the management of patients and families?

Marie Eliade 1 Jeremy Skrzypski Amandine Baurand 1 Caroline Jacquot Geoffrey Bertolone Catherine Loustalot 2 Charles Coutant 3, 4 France Guy 5 Pierre Fumoleau 6 Yannis Duffourd 3, 7 Laurent Arnould 2, 8, 9, 10 Alexandra Delignette 11, 7, 12 Marie-Martine Padéano 2, 8, 10, 12 Côme Lepage 10, 13 Géraldine Raichon-Patru 14 Axelle Boudrant 15 Marie-Christine Bône-Lépinoy 11, 4 Anne-Laure Villing Aurélie Charpin 6, 7 Karine Peignaux 13 Sandy Chevrier 16 François Vegran 4 François Ghiringhelli 4 Romain Boidot 4 Nicolas Sevenet 3 Sarab Lizard 12 Laurence Faivre 1, 17, * 
Abstract : Until recently, the molecular diagnosis of hereditary breast and ovarian cancer (HBOC) was mostly based on BRCA1/2 testing. Next generation sequencing and the recent discovery of new genes involved in HBOC now permit the transfer of genomic capture targeting multiple candidate genes from research to clinical use. However, the implications for the management of patients and their families have not been extensively studied, in particular since some of these genes are not well-established cancer predisposing genes. We studied 583 consecutive patients from Burgundy (France) fulfilling the criteria for BRCA testing using a next generation sequencing 25-genes panel including 20 well-established high-risk cancer genes as well as more recently identified predisposing HBOC cancer. A pathogenic BRCA1/2 mutation was found in 51 patients (9%). Besides, we found 37 pathogenic or likely pathogenic mutations in 10 different high to low-risk genes in 34 patients (6%). The most frequently mutated genes were CHEK2 (n = 12; 2%), ATM (n = 9; 1.5%), and PALB2 (n = 4; 0.6%). Three patients had a mutation in two different predisposing genes. The analysis of clinical actionability conducted in mutation-positive individuals revealed that additional disease-specific screening and/or prevention measures beyond those based on personal and family history alone had been recommended in 69% of cases. In conclusion, multigene panel testing is a powerful tool to identifying high to low-risk HBOC susceptibility genes. The penetrance and spectrum of cancers with these other genes are sometimes undefined, and further collaborative work is crucial to address this question.
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Soumis le : mercredi 24 mai 2017 - 11:18:57
Dernière modification le : dimanche 26 juin 2022 - 01:54:30

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Marie Eliade, Jeremy Skrzypski, Amandine Baurand, Caroline Jacquot, Geoffrey Bertolone, et al.. The transfer of multigene panel testing for hereditary breast and ovarian cancer to healthcare: What are the implications for the management of patients and families?. Oncotarget, 2017, 8 (2), pp.1957-1971. ⟨10.18632/oncotarget.12699⟩. ⟨hal-01527309⟩



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