کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5555351 | 1559749 | 2016 | 5 صفحه PDF | دانلود رایگان |
- Tc17 cell dysregulation at early stages of allo-SCT was found in aGVHD patients.
- Increased Tc17 cells correlated negatively with Treg cells in patients with aGVHD.
- TGF-β and IL-6 might play key roles in the induction of Tc17 cells in aGVHD patients.
Acute graft-versus-host disease (aGVHD) is associated with an immune dysregulation usually mediated by T lymphocytes. Recently, IL-17-producing T cells including Th17 and Tc17 cells have been implicated in immune-related diseases. However, their roles in aGVHD remain uncertain. In the study, we analyzed IL-17-producing cell recovery and association with the occurrence of aGVHD. While Th17 cells steadily recovered, Tc17 cell numbers remained unaltered during the first 3 months after transplantation. Occurrence of aGVHD was correlated with increased level of Tc17 cells at the second months after allo-SCT. Interestingly, Tc17 cells were negatively associated with CD4+ CD25+ FOXP3+ regulatory T (Treg) cells, which was an important prognostic predictor in patients with aGVHD. In addition, we found that Tc17 numbers increased as the increased concentrations of TGF-β and IL-6, which are known to drive Th17 polarization. These finding supported that Tc17 subset is involved in the immunopathology of aGVHD. Blocking the abnormally increased number of Tc17 may be a reasonable therapeutic strategy for aGVHD.
Journal: International Immunopharmacology - Volume 41, December 2016, Pages 122-126