The source matters: no impact of the CCL2/MCP-1-1-2518G polymorphism of the donor on renal allograft outcome during the first year after transplantation

Transplant Proc. 2008 Dec;40(10):3359-61. doi: 10.1016/j.transproceed.2008.08.126.

Abstract

Chemokines are involved in the recruitment of inflammatory cells to vascularized allografts. The chemokine CCL2/MCP-1 is expressed during allograft dysfunction, which is associated with the recruitment of inflammatory cells. Both intrinsic renal cells (donor origin) as well as infiltrating inflammatory cells (recipient origin) can be a source of CCL2/MCP-1. We previously demonstrated that the recipient MCP-1-2518G polymorphism is associated with increased CCL2/MCP-1 production by inflammatory cells and decreased renal allograft survival. We evaluated the impact of the MCP-1-2518G polymorphism in donor cells on renal allograft outcomes. We enrolled 252 recipients of kidney allografts in this retrospective study who had received grafts from 152 cadaveric donors. The CCL2/MCP-1 genotype was assessed using genomic DNA isolated from cryopreserved donor splenocytes. Outcome parameters studied were acute biopsy proven rejection (Banff criteria), serum creatinine, and glomerular filtration rate (GFR) at 1 year after transplantation, allograft loss, and death. MCP-1-2518 genotypes were in HW equilibrium. A/A was present in 125 (49.6%), A/G in 107 (42.5%), and G/G in 20 (7.9%) donor kidneys. There were no significant differences in the number of rejection episodes, the number of allograft losses, serum creatinine, GFR, or overall survival 1 year after transplantation. In contrast with the detrimental effect of the CCL2/MCP-1 polymorphism of the recipient, the CCL2/MCP-1 polymorphism of the donor has no impact on the allograft outcome during the first year after transplantation. The impact on the long-term outcomes needs further evaluation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Chemokine CCL2 / genetics*
  • Chemokines / genetics
  • DNA Primers
  • Follow-Up Studies
  • Glomerular Filtration Rate
  • Humans
  • Kidney Transplantation / physiology*
  • Polymorphism, Single Nucleotide*
  • Restriction Mapping
  • Retrospective Studies
  • Transplantation, Homologous
  • Treatment Outcome

Substances

  • CCL2 protein, human
  • Chemokine CCL2
  • Chemokines
  • DNA Primers