Asian Pacific Journal of Cancer Prevention

Asian Pacific Journal of Cancer Prevention (아시아태평양암예방학회)
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DNA Repair Gene Polymorphisms Do Not Predict Response to Radiotherapy-Based Multimodality Treatment of Patients with Rectal Cancer: a Meta-analysis

  • Guo, Cheng-Xian (Center of Clinical Pharmacology, the Third Xiangya Hospital) ;
  • Yang, Guo-Ping (Center of Clinical Pharmacology, the Third Xiangya Hospital) ;
  • Pei, Qi (Department of Pharmacy, the Third Xiangya Hospital, Central South University) ;
  • Yin, Ji-Ye (Institute of Clinical Pharmacology, Central South University) ;
  • Tan, Hong-Yi (Center of Clinical Pharmacology, the Third Xiangya Hospital) ;
  • Yuan, Hong (Center of Clinical Pharmacology, the Third Xiangya Hospital)
  • Published : 2015.02.25
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Abstract

Background: A number of association studies have been carried out to investigate the relationship between genetic polymorphisms in DNA repair genes and response to radiotherapy-based multimodality treatment of patients with rectal cancer. However, their conclusions were inconsistent. The objective of the present study was to assess the role of DNA repair gene genetic polymorphisms in predicting genetic biomarkers of the response in rectal cancer patients treated with neoadjuvant chemoradiation. Materials and Methods: Studies were retrieved by searching the PubMed database, Cochrane Library, Embase, and ISI Web of Knowledge. We conducted a meta-analysis to evaluate the association between genetic polymorphisms and the response in rectal cancer treated with neoadjuvant chemoradiation by checking odds ratios (ORs) and 95% confidence intervals (CIs). Results: Data were extracted from 5 clinical studies for this meta-analysis. The results showed that XRCC1 RS25487, XRCC1 RS179978, XRCC3 RS861539, ERCC1 RS11615 and ERCC2 RS13181 were not associated with the response in the radiotherapy-based multimodality treatment of patients with rectal cancer (p>0.05). Conclusions: This study shows that DNA repair gene common genetic polymorphisms are not significantly correlated with the radiotherapy-based multimodality treatment in rectal cancer patients.

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References

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