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Association between granzyme B and perforin I polymorphisms and allograft outcomes in Hispanic kidney transplant recipients
Author(s) -
CorralesTellez Eglis,
Vu Don,
Shah Tariq,
Hutchinson Ian,
Min David I.
Publication year - 2013
Publication title -
clinical transplantation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.918
H-Index - 76
eISSN - 1399-0012
pISSN - 0902-0063
DOI - 10.1111/ctr.12114
Subject(s) - granzyme b , medicine , perforin , granzyme , immunology , genotype , transplantation , kidney transplantation , loss of heterozygosity , kidney , cytotoxic t cell , allele , immune system , cd8 , gene , biology , genetics , in vitro
Granzyme B ( GZMB ) and perforin 1 gene ( PRF 1) are key effector molecules of cytotoxic T lymphocytes, in causing acute and chronic solid organ transplant rejection. In this study, we analyzed the impact of GZMB and PRF 1 polymorphism on kidney allograft outcomes. In all, 527 de novo kidney Hispanic allograft recipients were genotyped for PRF 1 (rs10999426, rs35947132) and GZMB (rs8192917, rs7144366). PRF 1 (rs10999426, rs35947132) G alleles and GG genotypes were negatively associated with allograft rejection, demonstrating protection against allograft rejection ( OR = 0.61, p = 0.005 for rs1099946; OR = 0.4, p = 0.01 for rs 35947132). On the other hand, the GA heterozygosity of PRF 1 was found marginally associated with the rejection group ( OR = 1.53, p = 0.05 for rs10999426; OR = 2.24, p = 0.07 for rs35947132). There was a significant increase in allograft survival in time period studied for the PRF 1 (rs10999426) GG genotype, while the GA heterozygosity was associated with graft failure. We found no association for polymorphic markers in GZMB gene with allograft rejection. Survival was significantly improved for patients who were homozygous TT for the GZMB (rs8192917) ( TT vs. CC / TT , p = 0.041). The result suggests that PRF 1 and GZMB gene polymorphisms may determine the incidence of acute rejection or graft survival among Hispanic allograft recipients.