PMID- 15327523 OWN - NLM STAT- MEDLINE DCOM- 20041101 LR - 20081121 IS - 0007-1048 (Print) IS - 0007-1048 (Linking) VI - 126 IP - 5 DP - 2004 Sep TI - Patient interleukin-18 GCG haplotype associates with improved survival and decreased transplant-related mortality after unrelated-donor bone marrow transplantation. PG - 704-10 AB - Interleukin-18 (IL-18), a proinflammatory cytokine, is elevated in patients with acute graft-versus-host disease (aGVHD). IL-18 induces Th1 differentiation and cytotoxic T-lymphocyte function, both of which have been implicated in the pathogenesis of aGVHD. However, recent studies have shown that neutralization of IL-18 by antibodies leads to an increased risk of aGVHD-related mortality while administration of IL-18 significantly improved survival. We have genotyped a cohort of 157 patient/donor pairs undergoing unrelated donor bone marrow transplantation (BMT) for three polymorphisms recently identified in the promoter of the IL-18 gene: G-137C, C-607A and G-656T. Using phase software, three main haplotypes were reconstructed: GCG, CAT and GAT. We found no association between the occurrence of aGVHD and patient/donor haplotypes. The presence of the GCG haplotype in patients was associated with significantly decreased risk of transplant-related mortality at 100 d (23% in patients with GCG vs. 48% in patients without GCG, P < 0.01) and at 1 year (36% vs. 65%, P < 0.01). The presence of the GCG haplotype in patients was also associated with improved survival (57% vs. 32%, P < 0.01). Cox regression analysis showed that the presence of the GCG haplotype was associated with a twofold increased probability of survival. These data suggest that the IL-18 promoter GCG haplotype may influence survival after unrelated donor BMT without altering the risk of aGVHD. FAU - Cardoso, Sandra M P AU - Cardoso SM AD - Department of Pathology and Microbiology, University of Bristol, Homeopathic Hospital Site, Cotham, University Walk, Bristol BS8 1TD, UK. s.pinto-cardoso@bristol.ac.uk FAU - DeFor, Todd E AU - DeFor TE FAU - Tilley, Louise A AU - Tilley LA FAU - Bidwell, Jeffrey L AU - Bidwell JL FAU - Weisdorf, Daniel J AU - Weisdorf DJ FAU - MacMillan, Margaret L AU - MacMillan ML LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Br J Haematol JT - British journal of haematology JID - 0372544 RN - 0 (Interleukin-18) SB - IM MH - Adolescent MH - Adult MH - Bone Marrow Transplantation/*mortality MH - Female MH - Haplotypes MH - Humans MH - Immunophenotyping MH - Interleukin-18/*genetics MH - Living Donors MH - Male MH - *Polymorphism, Genetic MH - *Promoter Regions, Genetic MH - Regression Analysis MH - Risk MH - Transplantation, Homologous MH - Treatment Outcome EDAT- 2004/08/26 05:00 MHDA- 2004/11/02 09:00 CRDT- 2004/08/26 05:00 PHST- 2004/08/26 05:00 [pubmed] PHST- 2004/11/02 09:00 [medline] PHST- 2004/08/26 05:00 [entrez] AID - BJH5128 [pii] AID - 10.1111/j.1365-2141.2004.05128.x [doi] PST - ppublish SO - Br J Haematol. 2004 Sep;126(5):704-10. doi: 10.1111/j.1365-2141.2004.05128.x.