Abstract
It was hypothesized that variants in underexplored homologous recombination repair (HR) genes could explain unsolved multiple-case breast cancer (BC) families. We investigated HR deficiency (HRD)-associated mutational signatures and second hits in tumor DNA from familial BC cases. No candidates genes were associated with HRD in 38 probands previously tested negative with gene panels. We conclude it is unlikely that unknown HRD-associated genes explain a large fraction of unsolved familial BC.
Original language | American English |
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Article number | 109 |
Journal | npj Breast Cancer |
Volume | 7 |
Issue number | 1 |
DOIs | |
State | Published - Dec 2021 |
Bibliographical note
Funding Information:This study, including the acquisition of archived samples, was funded by a Quebec Breast Cancer Foundation (QBCF) grant to W.D.F. and P.T. Tumor banking was supported in part by the Banque de tissus et de données of the Réseau de recherche sur le cancer of the Fonds de recherche du Québec Santé (FRQS) affiliated with the Canadian Tumor Repository Network (CTRNet). Y.T. is supported by Israel Science Foundation grant. A.O. is supported by CCSRI Innovation Grant and Canada Research Chair Tier 2 in Genome Stability and Hematological Malignancies. P.P. is supported by the Jimmy V foundation scholar award.
Publisher Copyright:
© 2021, The Author(s).