Association between interleukin 8-receptor gene (CXCR1 and CXCR2) polymorphisms and urinary tract infection: Evidence from 4097 subjects

Nephrology (Carlton). 2019 Apr;24(4):464-471. doi: 10.1111/nep.13260.

Abstract

Aim: The aim of this study was to determine whether a correlation exists between interleukin-8 receptor polymorphisms and urinary tract infection (UTI) susceptibility.

Methods: We systematically searched electronic databases including PubMed, Embase, China National Knowledge Infrastructure, and Web of Science up to 5 November 2017 to select appropriate studies that focused on C-X-C chemokine receptor type 1 and/or 2 (CXCR1, CXCR2) polymorphisms with susceptibility to UTI. Eight case-control studies including 2085 patients with UTI and 2012 controls were enrolled in this study. Seven studies of CXCR1 rs2234671 and two studies of rs3138086 were included in the meta-analyses. Pooled odds ratio (OR) and corresponding 95% confidence interval (CI) were synthesized using fixed-effects or random-effects model according to heterogeneity.

Results: No significant correlations were found between CXCR1 rs2234671 and rs3138086 polymorphisms and UTI susceptibility. However, subgroup analysis showed that rs2234671 was associated with an increased risk of UTI under allelic comparisons (C vs. G, OR = 1.95, 95% CI = 1.07-3.55), heterozygous model (GC vs. GG, OR = 1.93, 95% CI = 1.06-3.50), and dominant model (GC + CC vs. GG, OR = 1.98, 95% CI = 1.07-3.69) in children, especially in paediatric patients with acute pyelonephritis (allelic, OR = 2.43, 95% CI = 1.28-4.60; heterozygous, OR = 2.40, 95% CI = 1.24-4.62; dominant, OR = 2.48, 95% CI = 1.26-4.88). Furthermore, these results remained the same after eliminating paediatric patients with vesicoureteral reflux.

Conclusion: CXCR1 rs2234671 polymorphism might be associated with an increased risk of UTI in children.

Keywords: case-control studies; interleukin-8; meta-analysis; polymorphism; urinary tract infection.

Publication types

  • Meta-Analysis
  • Systematic Review

MeSH terms

  • Age Factors
  • Case-Control Studies
  • Gene Frequency
  • Genetic Association Studies
  • Genetic Predisposition to Disease
  • Heterozygote
  • Homozygote
  • Humans
  • Phenotype
  • Polymorphism, Single Nucleotide*
  • Protective Factors
  • Pyelonephritis / diagnosis
  • Pyelonephritis / genetics*
  • Pyelonephritis / prevention & control
  • Receptors, Interleukin-8A / genetics*
  • Receptors, Interleukin-8B / genetics*
  • Risk Factors
  • Urinary Tract Infections / diagnosis
  • Urinary Tract Infections / genetics*
  • Urinary Tract Infections / prevention & control

Substances

  • CXCR2 protein, human
  • Receptors, Interleukin-8A
  • Receptors, Interleukin-8B