文摘
The bulk of evidences indicates that variations in the coding for cytokines or the regulation of their expression may play a role in acute graft-versus-host disease (aGvHD) following allogeneic hematopoietic stem cell transplantation (HSCT). It is unclear whether IL-10 promoter polymorphism is associated with the occurrence of aGvHD in allogeneic HSCT. A systematic search was performed in PubMed and Embase databases and 10 studies were identified for inclusion. Data were extracted and pooled ORs together with 95?% CIs were calculated. The pooled result indicated that ?92A allele in recipient was significantly associated with reduced risk of moderate aGvHD in HSCT [OR?=?0.41 (0.21, 0.79), P?=?0.008, I 2?=?25?%]. The same pattern was also obtained from the ?19T allele in recipient [OR?=?0.38 (0.18, 0.79), P?=?0.01, I 2?=?41?%]. Furthermore, we found a significant positive correlation between the ?92AA homozygote and lower risk of severe aGvHD in HSCT [OR?=?0.54 (0.34, 0.86), P?=?0.01, I 2?=?29?%]. The similar result was gained from the ?082A allele in recipient and decreased risk of severe aGvHD [OR?=?0.71 (0.52, 0.98), P?=?0.04, I 2?=?19?%]. However, there was no significant association between ?92A, ?19T, or ?082A allele in donor and risk of aGvHD. This meta-analysis suggests that the IL-10 A allele or AA homozygote at ?92, T allele at ?19 and the A allele at ?082 are associated with reduced risk of aGvHD in allogeneic HSCT.