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Τετάρτη 2 Δεκεμβρίου 2015

Targeting Mismatch Repair defects: a novel strategy for personalized cancer treatment

Publication date: Available online 2 December 2015
Source:DNA Repair
Author(s): Rumena Begum, Sarah A. Martin
The DNA Mismatch Repair (MMR) pathway is a fundamental cellular process required to repair mispaired bases introduced routinely during DNA replication. Given this critical role in the maintenance of genome stability, it is not surprising that underlying defects in the MMR pathway occur in both hereditary and sporadic cancers. Furthermore, the MMR status greatly influences the sensitivity of cells to many common chemotherapeutic agents. Therefore, novel strategies are being investigated to exploit the loss of MMR in these cancers and to identify personalized therapeutic strategies to target MMR deficient tumours. In this review, we describe recent advances in strategies to target MMR deficient tumours using a synthetic lethal approach. We discuss new ways to target mutations secondary to MMR deficiency and suggest potential new therapies to optimize treatment outcome. We highlight ongoing clinical studies focussing on novel ways of preventing and treating MMR deficient cancers.



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