Journal
CANCER TREATMENT REVIEWS
Volume 36, Issue 7, Pages 557-565Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ctrv.2010.03.006
Keywords
Breast cancer; PARR inhibitors; Triple negative; BRCA1; BRCA2
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Funding
- spanish association against cancer (AECC)
- FISCAM grant [PI2007/41]
- proyectos de investigacion en salud [PS09/02144]
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DNA-repair mechanisms play an important role in the maintenance of DNA integrity and protection against DNA damage. Deregulation of these mechanisms is associated with the development of cancer as is seen in breast tumours with mutations in genes like BRCA1 and BRCA2. Recent biologic findings suggest that in tumours in which one DNA repair pathway is deficient, concomitant inhibition of other repair pathways could have potential synergistic activity. Pharmacological inhibition of Poly (ADP-ribose) polymerase (PARP), a key element of the base excision repair pathway, can have synthetic lethality in tumours with deficient homologous recombination. These findings have paved the way for the clinical development of PARP inhibitors in breast tumours especially in patients with germline mutations in the BRCA1 and/or BRCA2, a population known to have deficient homologous recombination. Patients with sporadic breast cancer, especially those with a basal-like profile may also develop cancer which is deficient in DNA repair and may be susceptible to PARP inhibition. In this review we will update the clinical and biological data underlying the development of drugs targeting DNA repair with a focus on breast cancer. (C) 2010 Elsevier Ltd. All rights reserved.
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