Abstract
Objective
To explore the association of functional single-nucleotide polymorphisms (SNPs) of CD133 with the risk of lung cancer.
Methods
We conducted a hospital-based, case–control study of 1017 lung cancer patients and 1035 cancer-free controls frequency-matched by age and sex. Four functional CD133 SNPs (rs2240688 A > C, rs10022537 T > A, rs7686732 C > G, and rs3130 C > T) were selected and genotyped. Unconditional univariate and multivariate logistic regression analyses were carried out to evaluate the associations of genotypes of CD133 SNPs with lung cancer risk.
Results
Compared with rs2240688 AA genotype, the variant AC/CC genotypes were associated with a statistically increased risk of lung cancer under a recessive model (adjusted odds ratio 1.19; 95 % confidence interval 1.01–1.42). The risk remained in patients with other histology types, but not with adenocarcinoma and squamous cell cancers.
Conclusions
These findings suggest that SNP rs2240688 A > C of CD133 may be a potential biomarker for genetic susceptibility to lung cancer, but require further research with larger populations.
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Abbreviations
- SNPs:
-
Single-nucleotide polymorphisms
- CSCs:
-
Cancer stem cells
- TFBS:
-
Transcription factor-binding site
- UTR:
-
Untranslated region
- PCR:
-
Polymerase chain reaction
- OR:
-
Odds ratio
- CI:
-
Confidence intervals
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Acknowledgments
This study was funded by Henan Provincial Science and Technology Department Grant (201201023). We thank Hai-Bo Wang for technical support in statistical analysis.
Author Contributions
Authors Qing-Feng Liu, Zhi-Fei Zhang, and Yi He conceived and designed the experiments. Guang-Jie Hou and Guang-Yu Yang performed the experiments. Qing-Feng Liu and Guang-Yu Yang analyzed the data. Qing-Feng Liu, Zhi-Fei Zhang, and Yi He contributed to the writing of the manuscript. All authors contributed to and have approved the final manuscript.
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Liu, QF., Zhang, ZF., Hou, GJ. et al. Polymorphisms of the Stem Cell Marker Gene CD133 and the Risk of Lung Cancer in Chinese Population. Lung 194, 393–400 (2016). https://doi.org/10.1007/s00408-016-9876-1
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DOI: https://doi.org/10.1007/s00408-016-9876-1