Browsing Cancer Biology by author "Pettitt, Stephen"
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ATR Is a Therapeutic Target in Synovial Sarcoma.
Jones, SE; Fleuren, EDG; Frankum, J; Konde, A; Williamson, CT; et al. (AMER ASSOC CANCER RESEARCH, 2017-12-15)Synovial sarcoma (SS) is an aggressive soft-tissue malignancy characterized by expression of SS18-SSX fusions, where treatment options are limited. To identify therapeutically actionable genetic dependencies in SS, we ... -
Genome-wide and high-density CRISPR-Cas9 screens identify point mutations in PARP1 causing PARP inhibitor resistance.
Pettitt, SJ; Krastev, DB; Brandsma, I; Dréan, A; Song, F; et al. (NATURE PUBLISHING GROUP, 2018-05-01)Although PARP inhibitors (PARPi) target homologous recombination defective tumours, drug resistance frequently emerges, often via poorly understood mechanisms. Here, using genome-wide and high-density CRISPR-Cas9 ... -
Genome-wide barcoded transposon screen for cancer drug sensitivity in haploid mouse embryonic stem cells.
Pettitt, SJ; Krastev, DB; Pemberton, HN; Fontebasso, Y; Frankum, J; et al. (NATURE PUBLISHING GROUP, 2017-03-01)We describe a screen for cellular response to drugs that makes use of haploid embryonic stem cells. We generated ten libraries of mutants with piggyBac gene trap transposon integrations, totalling approximately 100,000 ... -
The ubiquitin-dependent ATPase p97 removes cytotoxic trapped PARP1 from chromatin.
Krastev, DB; Li, S; Sun, Y; Wicks, AJ; Hoslett, G; et al. (NATURE PORTFOLIO, 2022-01-01)Poly (ADP-ribose) polymerase (PARP) inhibitors elicit antitumour activity in homologous recombination-defective cancers by trapping PARP1 in a chromatin-bound state. How cells process trapped PARP1 remains unclear. Using ...