[Changes of Th1/Th2/Th17 in patients received non-myeloablative haploidentical hematopoietic stem cell transplantation detected by flow cytometric bead array].

This study was purposed to investigate the changes of Th1/Th2/Th17 in patients received non-myeloblastic haploidentical hematopoietic stem cell transplantation (NAHSCT). The levels of IL-2, IL-4, IL-6, IL-10, TNF-α and IFN-γ, as well as IL-17 level were determined by flow cytometric bead array (CBA) in samples from 18 patients underwent allo-peripheral NAHSCT at different time points before and after transplantation. The results showed that all cytokines changed obviously after transplantation, and their serum levels were higher than that before transplantation. The expression levels of IL-2, IL-4 and IL-17 changed early, and their obviously up-regulation was found after transplantation. The expression levels of IL-6, IL-10 and TNF-α changed significantly, and were high as compared with that before transplantation. The change of INF-γ serum level was observed late, its rising occurred at week 4 after transplantation. The expression of all cytokines kept increasing during 4 weeks after transplantation and peaked at week 4. It is concluded that the serum levels of all cytokines from the patients after NAHSCT increased significantly, in which the levels of IL-2, IL-4 and IL-17 increased early, but the level of INF-γ changed late. The detection of cytokines is helpful for deep understanding the pathophysiologic mechanism of transplant-related complications.