Association of CD+4 CDHigh25 regulatory T cells and the negative control factor IL-10 with the development of acute graft-versus-host disease after allogeneic hematopoietic cell transplantation
10.3760/cma.j.issn.1009-9921.2010.09.007
- VernacularTitle:CD4+CDHigh25调节性T细胞及负调控因子白细胞介素-10与异基因造血干细胞移植后移植物抗宿主病的关系研究
- Author:
Ruirui REN
;
Liangming MA
;
Yanyan NIU
;
Ying ZHOU
;
Li ZHANG
- Publication Type:Journal Article
- Keywords:
Graftrs-host disease;
T-lymphocytes,regulatory;
Interleukin-10;
Flow cytometry;
Enzyme-linked immunosorbent assay
- From:
Journal of Leukemia & Lymphoma
2010;19(9):536-538,547
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the relationship between the CD+4 CDHigh25 regulatory T cells and cytokine IL-10 and acute graft-versus-host disease (aGVHD) after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Methods Flow cytometric was used to detect the percentage of CD+4 CDHigh25Foxp3High Treg cell and CD+4 CDHigh25 CDLow127 Treg cell in CD+4 T cells and at the same time ELISA was used to test the serum IL-10 levels in corresponding period. Results 13 patients have received hematopoietic function reconstruction. aGVHD group of CD+4 CDHigh25 CDLow127/CD+4 and CD+4 CDHigh25 Foxp3High/CD+4 ratio were significantly lower than non-aGVHD group, the difference was statistically significant (P ＜0.01); Ⅲ-Ⅳ degree of aGVHD subgroup was lower than Ⅰ - Ⅱ degree of aGVHD subgroup, but no statistical significance(P ＞0.05); the same as between-group CD+4 CDHigh25 CDLow127/CD+4 and the CD+4 CDHigh25 Foxp3High/CD+4 has no significant difference;aGVHD group of IL-10 concentration was significantly lower than non-GVHD group, the difference was statistically significant (P ＜0.01). Treg cell and IL-10 changes in correlation, r = 0.557, P ＜0.05. Conclusion The level of Treg cell was closely related to the occurrence of aGVHD after allo-HSCT. So it is very important to monitor the Treg cell level for clinical early diagnosis of aGVHD and predict prognosis of aGVHD and guide the application of immunosuppressant. CD127 can serve as a Treg cell surface-specific marker, to promote the detection of Treg cell and purification. IL-10 was an important negative regulator. Treg cell and IL-10expression in patients with aGVHD was correlation, which may provide some basis for Treg cell immunosuppressive mechanism.
