J Cancer 2020; 11(2):468-478. doi:10.7150/jca.34320

Research Paper

Polymorphisms in the PVT1 Gene and Susceptibility to the Lung Cancer in a Chinese Northeast Population: a Case-control Study

Ziwei Zhang1,2, Hang Li1,2, Juan Li1,2, Xiaoting Lv1,2, Zitai Yang1,2, Min Gao1,2, Yanhong Bi1,2, Shengli Wang1,2, Zhigang Cui3, Baosen Zhou1,2, Zhihua Yin1,2✉

1. Department of Epidemiology, School of Public Health, China Medical University, Shenyang 110122, PR China;
2. Key Laboratory of Cancer Etiology and Intervention, University of Liaoning Province, Shenyang 110122, PR China;
3. School of Nursing, China Medical University, Shenyang 110122, China.

This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/). See http://ivyspring.com/terms for full terms and conditions.
Zhang Z, Li H, Li J, Lv X, Yang Z, Gao M, Bi Y, Wang S, Cui Z, Zhou B, Yin Z. Polymorphisms in the PVT1 Gene and Susceptibility to the Lung Cancer in a Chinese Northeast Population: a Case-control Study. J Cancer 2020; 11(2):468-478. doi:10.7150/jca.34320. Available from https://www.jcancer.org/v11p0468.htm

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Background: Long non-coding RNA (lncRNA) PVT1 has been identified to be related to risk of a variety of cancers, such as gastric cancer, pancreatic cancer and follicular lymphoma. This study assesses the association between genetic polymorphisms of PVT1 and the susceptibility to lung cancer as well as gene-environmental interaction.

Method: A hospital-based case-control study, including 515 lung cancer patients and 582 healthy controls, was carried out in Shenyang, China. Unconditional logistic regression analyses calculated the odds ratios (ORs) and their 95% confidence intervals (CIs) to assess the associations between polymorphisms of rs2608053, rs1561927, rs13254990 and susceptibility to lung cancer. The gene-environment interaction was evaluated by additive model and multiplicative model.

Results: There were no statistically significant associations between rs2608053 and rs1561927 polymorphisms in PVT1 and risk of lung cancer in the overall population. The relationship between polymorphism rs13254990 in PVT1 gene and lung adenocarcinoma was significant. Composed with individuals carrying CC genotypes, TT genotype carriers were more likely to develop lung adenocarcinoma (adjusted OR=2.095; 95%CI=1.084-4.047, P=0.028). In the recessive model, it also showed a statistically significant difference (TT vs CT+CC: adjusted OR=2.251, 95%CI=1.174-4.318, P=0.015). In nonsmokers, individuals carrying genotype CT had a lower risk of lung cancer than those with CC genotype (adjusted OR=0.673, 95%CI=0.472-0.959, P=0.028). Comparing with the homozygous CC, the patients with the heterozygous CT had a lower risk of NCSLC in the non-smoking group (adjusted OR =0.685, 95%CI=0.477-0.984, P=0.040). Additionally, gene-environment interaction results were not statistically significant in either additive model or multiplicative model.

Conclusion: The polymorphism rs13254990 in PVT1 gene is associated with the risk of lung adenocarcinoma in a Chinese northeast population.

Keywords: lung cancer, lncRNA, PVT1, single nucleotide polymorphism, susceptibility