摘要

Infection and rejection are common complications faced by lung transplant recipients (LTRs) and have become major impediments to long-term survival. Cytokines may play an important role in the development of these complications. In this study, we explored the correlation between TNF- (-308 A/G), TGF-1 (+869 T/C, +915 G/C), IL-10 (-592 C/A, -819 T/C, -1082 G/A), IL-6 (-174 G/C), and IFN- (+874 T/A) gene polymorphisms and the incidence of acute rejection and infection. Transplant outcomes were reviewed in a retrospective cohort of 113 LTRs from a single center between December 2004 and November 2012. Cytokine polymorphisms were measured using sequence-specific primer-based PCR. HLA typing was performed for the donors and recipients. We found that the LTRs with the IL-10 -819 CC and -592 CC genotypes had a significantly decreased risk of infection (p=0.017, OR=0.177, 95% CI=0.04-0.85). However, we found no significant association between cytokine polymorphisms and acute rejection. Furthermore, the data revealed that the occurrence of acute rejection was strongly associated with infection episodes ((2)=8.5256, p<0.01). These results suggest that LTRs possessing the IL-10 -819 CC and -592 CC genotype may be protected from the occurrence of infection. Our results demonstrated that infection is an important cause of acute rejection for LTRs.