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Interferon-gamma and interleukin-6 gene polymorphisms associate with graft-versus-host disease in HLA-matched sibling bone marrow transplantation

Lookup NU author(s): Professor Anne Dickinson, Jean Norden, Dr Penelope Taylor, Professor Graham Jackson, Dr Peter Middleton


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Proinflammatory cytokines including interferon-gamma (IFN gamma), interfeukin-6 (IL-6), and tumor necrosis factor-alpha (TNF alpha) are implicated in the pathogenesis of acute graft-versus-host disease (aGVHD). Cytokine gene polymorphism is associated with functional differences in cytokine regulation and altered clinical performance in a variety of diseases. Polymorphism in the IFN gamma intron1 microsatellite (CA)(n) repeat has been linked with in vitro IFN gamma production and renal transplant rejection. The IL-6(-174)(G/C) single nucleotide polymorphism has been linked to in vitro and in vivo IL-6 production, juvenile chronic arthritis, and renal transplant rejection. This study examined the potential association of GVHD with IFN gamma, and IL-6 polymorphisms in 80 sibling bone marrow transplant (BMT) donor/recipient pairs. Patients homozygous for the IFN gamma Intron1 allele 3 had more severe (grade III-IV) aGVHD. Patients possessing the IL-6(-174)G allele had a trend toward higher grades of aGVHD, and those homozygous for the IL-6-174G allele were more likely to develop chronic GVHD (aGVHD). The associations of previously identified aGVHD severity-associated cytokine gene polymorphisms (TNFd and IL-10(-1064)) with severe aGVHD were reconfirmed. Logistic regression analysis confirmed the association of severe aGVHD with recipient genotype at IFN gamma Intron1 (odds ratio [OR] 3.92; P =.02), IL-10-1064 (OR 4.61; P =.026) and TNFd (OR 3,29; P =.039), and that of cGVHD with recipient IL-6-174 genotype (OR 4.25; P =.007), in addition to age, gender mismatch, and underlying disease. Assessment of cytokine genotype may potentially allow more accurate prediction of GVHD and appropriate adjustment of GVHD prophylaxis, as well as indicating novel areas for future studies of GVHD pathogenesis. (C) 2001 by The American Society of Hematology.

Publication metadata

Author(s): Dickinson AM; Jackson GH; Middleton PG; Taylor PRA; Norden J; Cavet J

Publication type: Article

Publication status: Published

Journal: Blood

Year: 2001

Volume: 98

Issue: 5

Pages: 1594-1600

ISSN (print): 0006-4971

ISSN (electronic): 1528-0020

Publisher: American Society of Hematology


DOI: 10.1182/blood.V98.5.1594


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