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Published in: Cancer Chemotherapy and Pharmacology 5/2013

01-05-2013 | Original Article

Polymorphisms in the base excision repair pathway modulate prognosis of platinum-based chemotherapy in advanced non-small cell lung cancer

Authors: Wan Zhao, Lingmin Hu, Jiali Xu, Hongbing Shen, Zhibin Hu, Hongxia Ma, Yongqian Shu, Yongfeng Shao, Yongmei Yin

Published in: Cancer Chemotherapy and Pharmacology | Issue 5/2013

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Abstract

Purpose

Platinum-based chemotherapy is the most common treatment for patients with advanced non-small cell lung cancer (NSCLC). Genetic polymorphisms in the base excision repair (BER) pathway are suspected to influence the response of patients to this type of therapy. In this study, we investigated whether nonsynonymous single nucleotide polymorphisms (SNPs) in the BER pathway were associated with the response, progression-free survival (PFS) and overall survival (OS) of NSCLC patients following platinum-based chemotherapy.

Methods

We used TaqMan to genotype four SNPs (APE1 Asp148Glu, PARP1 Va1762Ala, XRCC1 Arg194Trp and XRCC1 Arg399Gln) in 147 patients with advanced NSCLC who had undergone routine platinum-based chemotherapy.

Results

Logistic regression analysis showed that subjects with the XRCC1-399 A allele had a significantly better response to platinum-based chemotherapy than those with the XRCC1-399 GG genotype (AA/AG vs. GG: adjusted OR = 2.35, 95 % CI = 1.11–5.00). Furthermore, multivariate Cox proportional hazard regression analysis showed that the PARP1-762 CC genotype was a significantly unfavorable prognostic factor for PFS (CC vs. CT/TT: adjusted HR = 1.90, 95 % CI = 1.02–3.52). In contrast, the APE1-148 GG genotype was a significantly protective prognostic factor for OS (GG vs. TT: adjusted HR = 0.33, 95 % CI = 0.12–0.92).

Conclusions

We found that XRCC1 Arg399Gln, PARP1 Va1762Ala and APE1 Asp148Glu SNPs in the BER pathway may influence the prognosis of advanced NSCLC patients following platinum-based chemotherapy.
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Metadata
Title
Polymorphisms in the base excision repair pathway modulate prognosis of platinum-based chemotherapy in advanced non-small cell lung cancer
Authors
Wan Zhao
Lingmin Hu
Jiali Xu
Hongbing Shen
Zhibin Hu
Hongxia Ma
Yongqian Shu
Yongfeng Shao
Yongmei Yin
Publication date
01-05-2013
Publisher
Springer-Verlag
Published in
Cancer Chemotherapy and Pharmacology / Issue 5/2013
Print ISSN: 0344-5704
Electronic ISSN: 1432-0843
DOI
https://doi.org/10.1007/s00280-013-2127-8

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