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Transforming growth factor-beta1 codon 10 polymorphism is associated with acute GVHD after allogenic BMT in Iranian
Mohammad Reza Noori-Daloii1, Ali Rashidi-Nezhad, Pantea Izadi
1Department of Medical Genetics, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran. nooridaloii@excite.com
Background:
Certain cytokine genotypes are associated with acute graft versus host disease (aGVHD) after bone marrow transplantation (BMT). The present study aimed to determine existing association between TGF-beta1 codon 10 polymorphism and aGVHD after HLA-identical sibling BMT in the Iranian population.
Material/Methods:
In a retrospective case-control study, 168 subjects including 84 Iranian HLA-identical sibling BMT donor/recipient pairs were recruited. All of the patients were affected by hematological malignancies (AML=39, ALL=23 and CML=22). PCR-SSP method was performed to determine TGF-beta1 codon 10 T/C polymorphism genotypes.
Results:
The frequency of TGF-beta1 codon 10 TT, TC and CC genotypes among all subjects were 26.8%, 33.3% and 39.9% respectively. Recipients with the T allele developed aGVHD significantly less than those without the T allele (odds ratio =0.334, P=0.026).
Conclusions:
Genetic background of TGF-beta1 may be involved as a protective factor in the development of aGVHD in HLA-matched sibling BMT in Iranian population. Moreover, this finding may indicate that the genetic markers in Iranians are, at least to some extent, linked to distinct genetic event from Japanese.
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