Journal
REDOX BIOLOGY
Volume 25, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.redox.2018.101084
Keywords
Reactive Oxygen Species; ROS; DNA damage response; DDR; Chemotherapy; Radiotherapy
Categories
Funding
- Singapore Ministry of Health's National Medical Research Council Transition Awards [NMRC/TA/0052/2016]
- National Research Foundation Singapore
- Ministry of Education -Singapore under its Research Centres of Excellence initiative
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Reactive oxygen species (ROS) are a group of short-lived, highly reactive, oxygen-containing molecules that can induce DNA damage and affect the DNA damage response (DDR). There is unequivocal pre-clinical and clinical evidence that ROS influence the genotoxic stress caused by chemotherapeutics agents and ionizing radiation. Recent studies have provided mechanistic insight into how ROS can also influence the cellular response to DNA damage caused by genotoxic therapy, especially in the context of Double Strand Breaks (DSBs). This has led to the clinical evaluation of agents modulating ROS in combination with genotoxic therapy for cancer, with mixed success so far. These studies point to context dependent outcomes with ROS modulator combinations with Chemotherapy and radiotherapy, indicating a need for additional pre-clinical research in the field. In this review, we discuss the current knowledge on the effect of ROS in the DNA damage response, and its clinical relevance.
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