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Circulating interleukin-10 levels and human papilloma virus and Epstein–Barr virus-associated cancers: evidence from a Mendelian randomization meta-analysis based on 11,170 subjects

Authors Qu K, Pang Q, Lin T, Zhang L, Gu M, Niu W, Liu C, Zhang M

Received 21 September 2015

Accepted for publication 22 November 2015

Published 7 March 2016 Volume 2016:9 Pages 1251—1267

DOI https://doi.org/10.2147/OTT.S96772

Checked for plagiarism Yes

Review by Single-blind

Peer reviewers approved by Dr Jia Fan

Peer reviewer comments 2

Editor who approved publication: Professor Jianmin Xu


Kai Qu,1,* Qing Pang,1,* Ting Lin,1 Li Zhang,2 Mingliang Gu,3 Wenquan Niu,4 Chang Liu,1,* Ming Zhang5

1Department of Hepatobiliary Surgery, The First Affiliated Hospital of Xi’an Jiaotong University College of Medicine, Xi’an, Shaanxi Province, People’s Republic of China; 2Department of Ultrasound Diagnostics, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi Province, People’s Republic of China; 3Chinese Academy of Sciences Key Laboratory of Genome Sciences and Information, Beijing Institute of Genomics, Chinese Academy of Sciences, Beijing, People’s Republic of China; 4State Key Laboratory of Medical Genomics, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People’s Republic of China; 5Department of Otolaryngology, Eye, Ear, Nose and Throat Hospital, Fudan University, Shanghai, People’s Republic of China

*These authors contributed equally to this work


Abstract: Recent studies have showed interleukin 10 (IL-10) is a critical cytokine that determines antiviral immune response and is related to virus-associated cancers. However, whether genetically elevated circulating IL-10 levels are associated with the risk of human papilloma virus and Epstein–Barr virus-associated cancers (HEACs) is still unclear. Mendelian randomization method was implemented to meta-analyze available observational studies by employing IL-10 three variants (-592C>A, -819C>T, and -1082A>G) as instruments. A total of 24 articles encompassing 11,170 subjects were ultimately eligible for the meta-analysis. Overall, there was a significant association between IL-10 promoter variant -1082A>G and HEACs under allelic and dominant models (both P<0.01). Subgroup analysis by cancer type indicated that the risk estimate of -1082A>G was significant for nasopharyngeal cancer under allelic, homozygous genotypic and dominant models (all P<0.001). Moreover by ethnicity, carriers of -1082G allele had a 74% increased risk for nasopharyngeal cancer in Asians under dominant model (odds ratio [OR] =1.737; 95% confidence interval [CI]: 1.280–2.358; P<0.001). In further Mendelian randomization analysis, the predicted OR for 10 pg/mL increment in IL-10 levels was 1.14 (95% CI: 1.01–16.99) in HEACs. Our findings provided strong evidence for a critical role of genetically elevated circulating IL-10 levels in the development of HEACs, especially in Asian population and for nasopharyngeal cancer.

Keywords: interleukin-10, human papilloma virus, Epstein–Barr virus, meta-analysis, Mendelian randomization

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