XRCC1 and XPD genetic polymorphisms predict clinical responses to platinum-based chemotherapy in advanced non-small cell lung cancer

Peng Yuan, Xiao ping Miao, Xue mei Zhang, Zhong hua Wang, Wen Tan, Yan Sun, Xiang ru Zhang, Bing he Xu, Dong xin Lin

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

OBJECTIVE: DNA repair system plays an important role in tumor sensitivity to platinum-based chemotherapy. The purpose of this study was to examine the association between polymorphisms in XRCC1 and XPD, which are involved in DNA repair, and clinical responses to platinum-based chemotherapy in advanced non-small cell lung cancer (NSCLC). METHODS: XRCC1 Arg194Trp and XPD Lys751Gln were genotyped by PCR-RFLP method in 200 patients with advanced NSCLC who received platinum-based chemotherapy. Unconditional logistic regression model was used to analyze the association between genetic polymorphisms and clinical responses. RESULTS: The overall response rate (CR + PR) was 36.0%, including 1 CR, 72 PR, 94 SD and 34 PD. The XRCC1 194Trp allele carriers had higher response rate than the subjects with the Arg/Arg genotype (adjusted OR, 2.48; 95% CI, 1.36 - 4.51, P = 0.003). However, the XPD Lys751Gln polymorphism was not found to be associated with the platinum-based chemotherapy. These two genetic polymorphisms may have some interaction in the drug sensitivity, the P value for the trend was significant (P = 0.004). CONCLUSION: Those results suggest that the XRCC1 Arg194Trp and XPD Lys751Gln genetic polymorphisms may be associated with clinical responses to platinum-based chemotherapy in advanced non-small cell lung cancer.

Original languageEnglish
Pages (from-to)196-199
Number of pages4
JournalZhonghua zhong liu za zhi [Chinese journal of oncology]
Volume28
Issue number3
StatePublished - Mar 2006

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