摘要
目的:探讨移植物中表达趋化因子受体6(CCR6)或CCR7的T细胞数量与异基因造血干细胞移植后急性移植物抗宿主病(GVHD)发生的关系。方法:选取行亲缘异基因造血干细胞移植的52对供受者为研究对象,经重组人粒细胞集落刺激因子动员后,测定并比较骨髓和外周血采集物中CCR6+或CCR7+T细胞的数量,分析输注的各亚群T细胞数量与移植后受者发生Ⅱ-Ⅳ度急性GVHD的关系。结果:动员后,外周血采集物中CD4+CCR6+、CD8+CCR6+、CD4+CCR7+及CD8+CCR7+T细胞的绝对数量均较骨髓中增多(P<0.05),是骨髓中的15~25倍,但移植物中上述各亚群细胞的绝对数量不是移植后受者发生急性GVHD的危险因素(P>0.05)。结论:移植后受者急性GVHD的发生可能与移植物中CCR6+或CCR7+T细胞的数量无关。
Aim: To detect the quantity of T cell subsets expressing C-C chemokine receptor type 6( CCR6) or CCR7 in the grafts and analyze their correlation with the occurrence of acute graft-versus-host disease( GVHD). Methods: Fifty-two pairs of healthy donor and their recipients with family donor allogenetic hematopoietic stem cell transplantation( allo-HSCT) were included in this study. All the recipients were injected recombinant human granulocyte colony-stimulating factor( rh G-CSF) for mobilizing.The quantity of T cells expressing CCR6 or CCR7 in rh G-CSF mobilized bone marrow grafts( G-BM) and peripheral blood grafts( G-PB) were detected and compared. The correlation of the quantity of each subset cells with the cumulative incidence of gradesⅡto Ⅳ acute GVHD in recipients was analyzed. Results: After rh G-CSF mobilization,G-PB had obviously more T cells than GBM( P 0. 05). CD4+CCR6+,CD8+CCR6+,CD4+CCR7+and CD8+CCR7+T cells in G-PB were approximately 15- 25times more than those in G-BM. And the absolute counts of the above T cell subsets were not risk factors for acute GVHD( P 0.05). Conclusion: The quantity of T cell subsets may not be related to the occurrence of acute GVHD.
出处
《郑州大学学报(医学版)》
CAS
北大核心
2016年第4期494-497,共4页
Journal of Zhengzhou University(Medical Sciences)
基金
国家自然科学基金资助项目U1504806
关键词
急性移植物抗宿主病
CC趋化因子受体6
CC趋化因子受体7
异基因造血干细胞移植
acute graft-versus-host disease
C-C chemokine receptor type 6
C-C chemokine receptor type 7
allogenetic hematopoietic stem cell transplantation