Rebecca Dagg
PhD
Senior Postdoctoral research scientist
Research Summary
My research focuses on studying DNA repair and replication in cancers lacking homologous recombination. Specifically, investigating the replication defects caused by BRCA1/2 inactivation and how these can be targeted by anti-cancer therapies such as PARP inhibitors to kill BRCA-mutated cancers. As resistance to PARP inhibitors presents a significant clinical challenge my work also focuses on understanding the molecular mechanisms driving cancers to develop PARP inhibitor resistance.
Biography
Rebecca completed a PhD at the University of Sydney examining the role of telomere lengthening mechanisms in neuroblastoma pathogenesis. Rebecca then joined the Department of Oncology as a postdoctoral researcher in the Genome Stability and Tumourigenesis lab with Prof. Madalena Tarsounas. This work utilises tissue culture, molecular biology and microscopy techniques to understand how replication failure in BRCA1/2-deficient cells can be exploited to selectively kill these cells.
Key publications
Targeting DNA damage response pathways in cancer.
Journal article
Groelly FJ. et al, (2023), Nat Rev Cancer, 23, 78 - 94
Mitotic DNA synthesis is caused by transcription-replication conflicts in BRCA2-deficient cells.
Journal article
Groelly FJ. et al, (2022), Mol Cell, 82, 3382 - 3397.e7
A transcription-based mechanism for oncogenic β-catenin-induced lethality in BRCA1/2-deficient cells.
Journal article
Dagg RA. et al, (2021), Nat Commun, 12
Extensive Proliferation of Human Cancer Cells with Ever-Shorter Telomeres.
Journal article
Dagg RA. et al, (2017), Cell Rep, 19, 2544 - 2556
Recent publications
Nucleophagy removes cytotoxic trapped PARP1.
Journal article
Hoslett G. et al, (2026), Nat Cell Biol
Publisher Correction: Comprehensive molecular characterization of mitochondrial genomes in human cancers.
Journal article
Yuan Y. et al, (2023), Nat Genet, 55
High-resolution mapping of mitotic DNA synthesis under conditions of replication stress in cultured cells.
Journal article
Groelly FJ. et al, (2023), STAR Protoc, 4
Targeting DNA damage response pathways in cancer.
Journal article
Groelly FJ. et al, (2023), Nat Rev Cancer, 23, 78 - 94
Mitotic DNA synthesis is caused by transcription-replication conflicts in BRCA2-deficient cells.
Journal article
Groelly FJ. et al, (2022), Mol Cell, 82, 3382 - 3397.e7

