Cytokine (IL-10 -1082 and -819) and chemokine receptor (CCR2 and CCR5) gene polymorphism in North Indian patients with end-stage renal disease

DNA Cell Biol. 2009 Apr;28(4):177-83. doi: 10.1089/dna.2008.0822.

Abstract

End-stage renal disease (ESRD) is associated with the inflammatory state characterized by infiltrating macrophages/lymphocytes, a major source of cytokines and chemokines. This study examined the role of genetic polymorphisms in cytokine, IL-10, and chemokine receptors, CCR2 and CCR5, with susceptibility to ESRD. Polymorphisms in IL-10 (-1082 G/A, PCR-RFLP; -819 C/T, ARMS-PCR), CCR2 (Val/Ile, PCR-RFLP), and CCR5Delta32 were detected in 184 ESRD patients and 180 controls. Our results demonstrated a significant difference in genotype frequencies of IL-10 -1082G/A (p<0.001), IL-10 -819C/T (p=0.007), and CCR2Val/Ile (p=0.033) between ESRD patients and controls. However, only low-producing genotype AA of IL-10 -1082G/A showed significantly threefold higher risk for all ESRD patients (odds ratio [OR]=3.164, 95%CI=1.74-5.72) as well as patients with only inflammatory causes of renal diseases (OR=2.979, 95%CI=1.61-5.52). No risk was seen in variant genotype of other genes. The genotypic frequencies of CCR5Delta32 were comparable in patients and controls (p=0.203). In haplotype analysis, A-T haplotype (low producer) of IL-10 showed 1.7-fold risk (p>0.05). No risk was seen for CCR2 and CCR5 haplotypes. The AA genotype of IL-10 -1082G/A polymorphism was associated with increased susceptibility to ESRD. This study implies the basis for defined antiinflammatory approaches to impede renal disease progression.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adolescent
  • Adult
  • Female
  • Genetic Predisposition to Disease*
  • Humans
  • India
  • Interleukin-10 / genetics*
  • Interleukin-10 / immunology
  • Kidney Failure, Chronic / genetics*
  • Kidney Failure, Chronic / immunology*
  • Male
  • Middle Aged
  • Receptors, CCR2 / genetics*
  • Receptors, CCR2 / immunology
  • Receptors, CCR5 / genetics*
  • Receptors, CCR5 / immunology
  • Young Adult

Substances

  • CCR2 protein, human
  • IL10 protein, human
  • Receptors, CCR2
  • Receptors, CCR5
  • Interleukin-10