Journal
BONE MARROW TRANSPLANTATION
Volume 36, Issue 12, Pages 1089-1095Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/sj.bmt.1705181
Keywords
single nucleotide polymorphism; interleukin-10; invasive pulmonary aspergillosis; allogeneic stem cell transplantation
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The current study attempted to evaluate the association between the IL-10 promoter gene single nucleotide polymorphism (SNP) and invasive pulmonary aspergillosis (IPA) after allogeneic stem cell transplantation (SCT) in 105 patients. Three single-nucleotide polymorphisms were investigated in the proximal region of the IL-10 promoter gene (-1082/-819/-592). Two haplotypes (1082*A/819*T/592*A [ATA] and 1082*A/819*C/592*C [ACC]) were found in the current study. The overall incidence of IPA was estimated as 14.1 +/- 4.5% with a median onset at 186 days post-transplant (62 similar to 405 days). An increased occurrence of IPA was noted dependent on the IL-10 haplotype (0% vs 11.5 +/- 6.4% vs 19.7 +/- 7.7% for ACC/ACC vs ATA/ACC vs ATA/ATA haplotype, P = 0.0307 when comparing ACC with non-ACC haplotype). In a multivariate survival analysis using Cox's proportional hazard model, the IL-10 promoter gene SNPs were identified as an independent predictive factor for the development of IPA (P = 0.012, hazard ratio (HR) 9.3), along with an histocompatibility leukocyte antigen (HLA)-identical donor (P = 0.005, HR 16.3), the CD34+ cell dose transplanted (P = 0.004, HR 26.5), and time-dependent chronic graft-versus-host disease (GVHD; P = 0.049, HR 16.0). The IL-10 ACC haplotype was found to have an apparent protective role in the development of IPA after allogeneic transplantation, regardless of HLA-disparity or chronic GVHD.
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