No association between XRCC1 polymorphisms and survival in non-small-cell lung cancer patients treated with platinum-based chemotherapy.

Abstract:

PURPOSE:genetic polymorphisms in DNA repair genes are thought to represent important determinants of platinum drug efficacy. The current study investigated whether single nucleotide polymorphisms (SNPs) in the X-ray repair cross complementing protein 1 (XRCC1) gene are associated with survival in non-small-cell lung cancer (NSCLC) patients treated with platinum-based chemotherapy. EXPERIMENTAL DESIGN:a total of 199 platinum-treated patients with stage III-IV NSCLC were recruited. Overall survival (OS) and progression-free survival (PFS) according to genotypes and haplotypes were analyzed using Kaplan-Meier method and assessed by log-rank test. Hazard ratios (HRs) were calculated using Cox proportional hazards models by adjusting for clinical factors. RESULTS:during the median 26.5 months of follow-up, 159 deaths occurred. Regarding XRCC1 Arg194Trp, Arg280His, and Arg399Gln genotypes, no significant effects on survival were observed, although the 280Arg/His genotype was associated with a borderline-significant higher median survival time (20.0 months for Arg/His versus 16.0 months for Arg/Arg; P = 0.131). Moreover, no significant association of haplotypes with survival was found. CONCLUSIONS:this study showed no influence of the XRCC1 Arg194Trp, Arg280His, and Arg399Gln polymorphisms on survival in advanced NSCLC patients with platinum-based chemotherapy.

journal_name

Cancer Biol Ther

journal_title

Cancer biology & therapy

authors

Yuan P,Liu L,Wu C,Zhong R,Yu D,Wu J,Xu Y,Nie S,Miao X,Sun Y,Xu B,Lin D

doi

10.4161/cbt.10.9.13238

subject

Has Abstract

pub_date

2010-11-01 00:00:00

pages

854-9

issue

9

eissn

1538-4047

issn

1555-8576

pii

13238

journal_volume

10

pub_type

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