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SIRT1 gene polymorphisms and risk of lung cancer

Authors Lv Y, Lin SY, Peng F

Received 26 May 2017

Accepted for publication 25 July 2017

Published 4 September 2017 Volume 2017:9 Pages 381—386


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Alexandra R. Fernandes

Yanbo Lv, Shuangyan Lin, Fang Peng

Department of Pathology, Zhejiang Hospital, Hangzhou City, Zhejiang, China

Objective: Lung cancer, which is the leading cause of cancer death worldwide, is influenced by a wide variety of environmental and genetic risk factors. The silent information regulator 1 (SIRT1) gene is located on the long arm of chromosome 10 (10q21.3) and has been shown to play crucial roles in lung cancer development in previous studies. In this study, we determined whether variation in the SIRT1 gene is associated with lung cancer in Chinese population.
Methods: The case–control study comprised 246 controls and 257 non-small cell lung cancer patients, comprising 79 squamous cell carcinoma patients and 124 adenocarcinoma patients. All subjects were from Zhejiang, China. Four single-nucleotide polymorphisms of SIRT1 gene were analyzed: rs12778366 (C/T, lies in the 5′ upstream), rs3758391 (C/T, lies in the 5′ upstream), rs2273773 (C/T, lies in the coding) and rs4746720 (C/T, lies in the 3′ untranslated region).
Results: No significant difference of allele and genotype frequencies was observed between the different groups. Haplotype association analysis carried out on the four single-nucleotide polymorphisms within the case–control cohort also did not reveal a significant association with lung cancer (P>0.05).
Conclusion: The results suggest the tested SIRT1 gene polymorphisms may not contribute to lung cancer. Further studies are warranted to demonstrate the functional roles of the SIRT1 polymorphism in lung cancer.

Keywords: SIRT1, SNP, non-small cell lung cancer, adenocarcinoma, squamous cell carcinoma

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