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Genetic variants in ERCC1 and XPC predict survival outcome of non-small cell lung cancer patients treated with platinum-based therapy.

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Date
2017-09-06
Authors
Zhang, Ruoxin
Jia, Ming
Xue, Huijing
Xu, Yuan
Wang, Mengyun
Zhu, Meiling
Sun, Menghong
Chang, Jianhua
Wei, Qingyi
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Abstract
Nucleotide excision repair (NER) plays a vital role in platinum-induced DNA damage during chemotherapy. We hypothesize that regulatory single nucleotide polymorphisms (rSNPs) of the core NER genes modulate clinical outcome of patients with advanced non-small cell lung cancer (NSCLC) treated with platinum-based chemotherapy (PBS). We investigated associations of 25 rSNPs in eight NER genes with progression free survival (PFS) and overall survival (OS) in 710 NSCLC patients. We found that ERCC1 rs3212924 AG/GG and XPC rs2229090 GC/CC genotypes were associated with patients' PFS (HRadj = 1.21, 95% CI = 1.03-1.43, P adj = 0.021 for ERCC1 and HRadj = 0.80, 95% CI = 0.68-0.94, P adj = 0.007 for XPC), compared with the AA and GG genotypes, respectively. The association of XPC rs2229090 was more apparent in adenocarcinoma than in squamous cell carcinoma patients. Additionally, ERCC4 rs1799798 GA/AA genotypes were associated with poorer OS (HRadj = 1.32, 95% CI = 1.04-1.69, P adj = 0.026), compared with the GG genotype. The expression quantitative trait loci analysis revealed that ERCC1 rs3212924 and XPC rs2229090 might regulate transcription of their genes, which is consistent with their associations with survival. Larger studies are needed to validate our findings with further functional studies to elucidate the mechanisms underlying these observed associations.
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Journal article
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https://hdl.handle.net/10161/17960
Published Version (Please cite this version)
10.1038/s41598-017-10800-5
Publication Info
Zhang, Ruoxin; Jia, Ming; Xue, Huijing; Xu, Yuan; Wang, Mengyun; Zhu, Meiling; ... Wei, Qingyi (2017). Genetic variants in ERCC1 and XPC predict survival outcome of non-small cell lung cancer patients treated with platinum-based therapy. Scientific reports, 7(1). pp. 10702. 10.1038/s41598-017-10800-5. Retrieved from https://hdl.handle.net/10161/17960.
This is constructed from limited available data and may be imprecise. To cite this article, please review & use the official citation provided by the journal.
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Scholars@Duke

Wei

Qingyi Wei

Professor in Population Health Sciences
Qingyi Wei, MD, PhD, Professor in the Department of Medicine, is Associate Director for Cancer Control and Population Sciences, Co-leader of CCPS and Co-leader of Epidemiology and Population Genomics (Focus Area 1). He is a professor of Medicine and an internationally recognized epidemiologist focused on the molecular and genetic epidemiology of head and neck cancers, lung cancer, and melanoma. His research focuses on biomarkers and genetic determinants for the DNA repair deficient phenotype and
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