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Association between polymorphisms in selected inflammatory response genes and the risk of prostate cancer

Authors Chen J, Ying X, Huang X, Huang P, Yan S

Received 30 June 2015

Accepted for publication 27 October 2015

Published 11 January 2016 Volume 2016:9 Pages 223—229


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Prof. Dr. Jianmin Xu

Jun Chen,1,* Xue-Ming Ying,2,* Xue-Ming Huang,3 Peng Huang,4 Shao-Cong Yan1

1Department of Oncology, The First Affiliated Hospital of Nanchang University, Nanchang, 2Department of Oncology, Jingdezhen City People’s Hospital, Jingdezhen, 3Department of Urology, Research Institute, The First Affiliated Hospital of Nanchang University, 4The Medical School of Nanchang University, School of Public Health, Nanchang, People’s Republic of China

*These authors contributed equally to this work

Abstract: Inflammation represents an important event which facilitates prostate carcinogenesis. Genetic variations in inflammatory response genes could affect the level and function of the protein products, resulting in the differential prostate cancer risk among carriers of different variants. This study attempted to investigate the association of IL-4 rs2243250, IL-6 rs10499563, IL-8 rs4073, as well as NFKBIA rs2233406 and rs3138053 polymorphisms with prostate cancer risk in the Chinese population. Genotyping of the polymorphisms was performed by using polymerase chain reaction-restriction fragment length polymorphism technique on 439 prostate cancer patients and 524 controls, and the association of each polymorphic genotype with prostate cancer risk was evaluated by using logistic regression analysis based on allele, heterozygous, and homozygous comparison models, with adjustment to age and smoking status. We showed that the C allele of IL-4 rs2243250 polymorphism could increase prostate cancer risk (heterozygous comparison model: odds ratio [OR] =1.434, 95% confidence interval [CI] =1.092–1.881, P=0.009; homozygous comparison model: OR =2.301, 95% CI =1.402–3.775, P=0.001; allele comparison model: OR =1.509, 95% CI =1.228–1.853, P<0.001). On the other hand, the C allele of rs10499563 polymorphism could decrease prostate cancer risk (heterozygous comparison model: OR =0.694, 95% CI =0.525–0.918, P=0.010; homozygous comparison model: OR =0.499, 95% CI =0.269–0.926, P=0.028; allele comparison model: OR =0.692, 95% CI =0.553–0.867, P=0.001). No association was observed for the other polymorphisms. In conclusion, IL-4 rs2243250 and IL-6 rs10499563 polymorphisms could serve as potential predictive biomarkers for prostate cancer risk in the Chinese population.

Keywords: biomarkers, inflammation, logistic regression, polymorphisms, prostate neoplasm

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