Demethylating agents drive PARP inhibitor resistance in ovarian carcinomas with BRCA1 gene silencing
Ksenija Nesic, Franziska Geissler, Lijun Xu, Elizabeth L. Kyran, Sally Beard, Cassandra J. Vandenberg, Brett Liddell, Sam W.Z. Olechnowicz, Monique D. Topp, Orla McNally, Gayanie Ratnayake, Nadia Traficante, Australian Ovarian Cancer Study, Anna DeFazio, David D.L. Bowtell, , Matthew J. Wakefield
This study shows that DNMT1 inhibitors reduce BRCA1 promoter methylation in HGSOC, leading to BRCA1 re-expression and PARP inhibitor resistance.
bioRxiv · Apr 7, 2025 · PreprintCancer Biology