Research Abstract
We study the relationships between homologous recombination (HR), genomic instability and hereditary breast/ovarian cancer predisposition. Our work has revealed new functions for the major breast/ovarian cancer susceptibility genes, BRCA1 and BRCA2, in regulating HR at sites of stalled replication. In recent work, we have elucidated the mechanisms underlying certain characteristic “rearrangement signatures” in BRCA1-linked cancers. The elucidation of stalled fork repair pathways that are controlled by BRCA1 and BRCA2 may help to identify promising new biomarkers and new therapeutic approaches in BRCA-linked breast and ovarian cancer.