title: Association of polymorphisms of interleukin-8, CXCR1, CXCR2, and selectin with allograft outcomes in kidney transplantation.
abstract: BACKGROUND
  Both chemokines and adhesion molecules mediate allograft rejection by recruiting leukocytes into the allograft. We investigated the association of six single nucleotide polymorphisms (SNPs) located in interleukin (IL)-8, CXCR1, CXCR2, and selectin with kidney allograft outcomes.
  
  
  METHODS
  The promoter regions of CXCR1 and CXCR2 were sequenced directly to find SNPs. Reporter gene assay was performed to determine the transcriptional activity of CXCR2 promoter polymorphisms. The association of SNPs in IL-8, CXCR1, CXCR2, and selectin with both acute rejection and estimated glomerular filtration rate at 1-year posttransplant was analyzed in 216 donor-recipient pairs of kidney transplantation.
  
  
  RESULTS
  The donor GA/AA genotypes of CXCR1 -2668G/A (rs2671222) were associated with increased risk for acute rejection even after adjusting for covariates such as gender, diabetes, preemptive transplantation, immunosuppressive regimen, relationship with the donor, and human leukocyte antigen mismatch (adjusted odds ratio 3.56; 95% confidence interval 1.37-9.27; P=0.009). Although the transcriptional activity of the CXCR2 variant promoter was 2.6-fold higher than that of the wild-type promoter (P=0.039), no significant association was observed between CXCR2 polymorphisms and kidney allograft outcomes. SNPs of IL-8, L-selectin, and E-selectin were not associated with kidney allograft outcomes.
  
  
  CONCLUSIONS
  The donor CXCR1 -2668 GA/AA genotypes were an independent risk factor for acute rejection in kidney transplantation.
authors: Department of Internal Medicine, Seoul National University College of Medicine, Seoul, South Korea.
authors: Han
authors: H
authors: Ro
authors: Young-Hwan
authors: YH
authors: Hwang
authors: Hyunsook
authors: H
authors: Kim
authors: Jong Cheol
authors: JC
authors: Jeong
authors: Hankyu
authors: H
authors: Lee
authors: Young-Seok
authors: YS
authors: Doh
authors: Hayne Cho
authors: HC
authors: Park
authors: Kook-Hwan
authors: KH
authors: Oh
authors: Myoung Hee
authors: MH
authors: Park
authors: Jongwon
authors: J
authors: Ha
authors: Jaeseok
authors: J
authors: Yang
authors: Curie
authors: C
authors: Ahn
mesh_terms: D000208:Acute Disease; D000328:Adult; D019040:E-Selectin / Q000235:genetics*; D005260:Female; D006084:Graft Rejection / Q000235:genetics*; D006680:HLA Antigens / Q000276:immunology; D006650:Histocompatibility Testing; D006801:Humans; D016209:Interleukin-8 / Q000235:genetics*; D016030:Kidney Transplantation / Q000276:immunology*; D019041:L-Selectin / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D020641:Polymorphism, Single Nucleotide; D011401:Promoter Regions, Genetic / Q000235:genetics; D023062:Receptors, Interleukin-8A / Q000235:genetics*; D023063:Receptors, Interleukin-8B / Q000235:genetics*; D012189:Retrospective Studies; D016896:Treatment Outcome
chemical_list: D019040:E-Selectin; D006680:HLA Antigens; D016209:Interleukin-8; D023062:Receptors, Interleukin-8A; D023063:Receptors, Interleukin-8B; D019041:L-Selectin