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Lookup NU author(s): Professor Nicola Curtin
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PARP-1 [poly(ADP-ribose) polymerase-1], which plays a key role in DNA repair, was discovered 50 years ago. PARPi (PARP inhibitors), originally made to probe the function of the enzyme, inhibit DNA repair and increase the potency of anticancer cytotoxic agents. PARPi of increasing potency were developed as chemo- and radio-sensitizers and first entered clinical trial in cancer patients in 2003. However, it was the revelation in 2005 that they were synthetically lethal in cells with DNA repair defects, found almost exclusively in some tumours, that led to a major interest in this class of drug. Several PARPi have entered clinical trials and show promising activity in breast, ovarian and other cancers associated with BRCA (breast cancer early-onset) mutations or other defects in homologous recombination DNA repair. It is likely that at least one of these will be licensed soon. The present review describes key events from the discovery to clinical application of PARPi.
Author(s): Curtin N
Publication type: Article
Publication status: Published
Journal: Biochemical Society Transactions
Print publication date: 01/02/2014
ISSN (print): 0300-5127
Publisher: Portland Press Ltd.
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