PURPOSE: We investigated single nucleotide polymorphisms (SNPs) of thrombospondin-1 (TSP-1) on the risk of corneal allograft rejection. The TSP-1 is known to be involved in the immune response of the anterior chamber of the eye, activating TGF-β2, promoting peripheral and systemic tolerance, and counteracting the proangiogenic activity of VEGF. METHODS: Three tagging SNPs spanning the TSP-1 region (rs1478604, A>G; rs2228261, C>T; and rs2228262, A>G) were genotyped. Association with risk of rejection was investigated in a group of 378 corneal transplant recipients with risk factors for allograft rejection. Transplant recipients had completed 3-year follow-up. RESULTS: The TSP-1 rs1478604 A SNP was associated significantly with an increased risk of corneal allograft rejection (odds ratio [OR], 1.58; 95% confidence interval [CI], 1.02-2.45; P = 0.04) and there was a trend toward the rs1478604, rs2228261, rs2228262 ACA haplotype increasing risk of rejection. CONCLUSIONS: The results suggest that TSP-1 rs1478604 AA homozygotes may be at increased risk of corneal transplant rejection, especially if they carry the ACA haplotype.
RCT Entities:
PURPOSE: We investigated single nucleotide polymorphisms (SNPs) of thrombospondin-1 (TSP-1) on the risk of corneal allograft rejection. The TSP-1 is known to be involved in the immune response of the anterior chamber of the eye, activating TGF-β2, promoting peripheral and systemic tolerance, and counteracting the proangiogenic activity of VEGF. METHODS: Three tagging SNPs spanning the TSP-1 region (rs1478604, A>G; rs2228261, C>T; and rs2228262, A>G) were genotyped. Association with risk of rejection was investigated in a group of 378 corneal transplant recipients with risk factors for allograft rejection. Transplant recipients had completed 3-year follow-up. RESULTS: The TSP-1rs1478604 A SNP was associated significantly with an increased risk of corneal allograft rejection (odds ratio [OR], 1.58; 95% confidence interval [CI], 1.02-2.45; P = 0.04) and there was a trend toward the rs1478604, rs2228261, rs2228262 ACA haplotype increasing risk of rejection. CONCLUSIONS: The results suggest that TSP-1rs1478604 AA homozygotes may be at increased risk of corneal transplant rejection, especially if they carry the ACA haplotype.
Entities:
Keywords:
corneal transplantation; single nucleotide polymorphism; thrombospondin-1
Authors: William Foulsham; Thomas H Dohlman; Sharad K Mittal; Yukako Taketani; Rohan Bir Singh; Sharmila Masli; Reza Dana Journal: Ocul Surf Date: 2019-06-05 Impact factor: 5.033
Authors: W John Armitage; Christine Goodchild; Matthew D Griffin; David J Gunn; Jesper Hjortdal; Paul Lohan; Conor C Murphy; Uwe Pleyer; Thomas Ritter; Derek M Tole; Bertrand Vabres Journal: Transplantation Date: 2019-12 Impact factor: 4.939