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Interleukin-8 (IL-8) is an inflammatory cytokine and plays important role in development of cancers. We conducted a meta-analysis to explore the association between IL-8 rs4073 polymorphism and risk of prostate cancer. PubMed, Embase, Cochrane Library, and Web of Science databases were searched for only case-control studies published before February 2019. The methodological quality assessment of included studies was performed based on Newcastle-Ottawa Quality Scale (NOS). Based on the heterogeneity, we conducted a meta-analysis using random-effect models. Pooled odds ratios (ORs) with a 95% confidence interval (CI) were calculated using the allele (T vs. A), homozygous (TT vs. AA), heterozygous (TA vs. AA), dominant (TT + TA vs. AA), and recessive (TT vs. TA + AA) genetic models to assess the strength of the relationship between IL-8 rs4073 polymorphism and prostate cancer risk. In addition, the stability of our analysis was evaluated by heterogeneity, sensitivity, subgroup of ethnicity and study design, and publication bias analysis. We included 6 case-control studies with a total of 1752 cases and 1982 controls. Significantly higher prostate cancer risk of 1.12 (95% CI = 1.01-1.25), 1.26 (95% CI = 1.03-1.55), and 1.20 (95% CI = 1.02-1.41) were found for the allele, homogeneous, and recessive model, respectively. Though there was no statistical association with other genetic models in our meta-analyses, a tendency of higher prostate cancer risk was observed in all five genetic models. The major findings of this meta-analysis suggested that IL-8 rs4073 polymorphism is significantly associated with risk of prostate cancer. Copyright © 2019 Formosan Medical Association. Published by Elsevier B.V. All rights reserved.


Chih-Heng Chen, Chen-Hsun Ho, Su-Wei Hu, Kai-Yi Tzou, Yuan-Hung Wang, Chia-Chang Wu. Association between interleukin-8 rs4073 polymorphism and prostate cancer: A meta-analysis. Journal of the Formosan Medical Association = Taiwan yi zhi. 2020 Jul;119(7):1201-1210

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PMID: 31718853

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