Schlafen 11 further sensitizes BRCA-deficient cells to PARP inhibitors through single-strand DNA gap accumulation behind replication forks
Junko Murai,
Hiroshi Onji,
Sota Tate
et al.
Abstract:The preferential response to PARP inhibitor (PARPi) olaparib in BRCA-deficient and Schlafen 11 (SLFN11)-expressing ovarian cancers has been documented, yet the underlying molecular mechanisms remain unclear. As the accumulation of single-strand DNA (ssDNA) gaps behind replication forks is key for the lethality induced by PARPis, we investigated the combined effects of SLFN11 expression and BRCA deficiency on PARPis sensitivity and ssDNA gap formation in human cancer cells. PARPis increased chromatin-bound RPA2… Show more
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