机构地区:[1]北京大学人民医院、北京大学血液病研究所,北京市造血干细胞移植治疗血液病重点实验室,100044
出 处:《中华血液学杂志》2013年第9期745-750,共6页Chinese Journal of Hematology
基 金:基金项目:国家自然科学基金(81270644);国家973项目(2013CB733700);北京市科技新星(2008805);教育部博士点基金博导类(20110001110039);首都临床特色应用研究项目(Z121107001012085)
摘 要:目的研究异基因造血干细胞移植(allo.HSCT)后CD4+T细胞及CD8+T细胞中CD25+Foxp3+(CD4+Treg细胞或CD8+Treg细胞)、IL一17a(Thl7细胞或Tcl7细胞)及IFN.7(Thl细胞或Tcl细胞)表达以及CD4+CD25。CDl27+效应性T细胞(Tcon细胞)重建,比较HLA相合与不合allo—HSCT后T细胞亚群重建的异同。方法收集2011年12月至2012年10月在北京大学血液病研究所进行allo—HSCT后未发生急性移植物抗宿主病的成年血液病患者20例,其中HLA相合10例、HLA不合10例,并留取10份健康供者外周血标本作为健康对照。采用8色流式细胞学检测技术检测CD4+T细胞及CD8+T细胞上CD25+Foxp3+、CD127、IL-17a及IFN-γ表达。结果@HLA全合组与不合组患者移植后2个月内CD3+T细胞、CD4+T细胞、CD8+T细胞数量重建两组问差异无统计学意义。②HLA相合组CD4+Treg细胞[+30d,8.46(0.36~27.41)细胞数/μl对1.10(0.04~8.03)细胞数/μl,P〈0.05;+60d,8.50(1.16-36.20)细胞数/μl对2.73(0.34~6.84)细胞数/μl,P〈0.05]、CD4+CD25-CD127+效应性T细胞[+30d,72.69(3.85~211.73)细胞数μl对13.41(0.48~96.17)细胞数/μl,P〈0.05;+60d,100.85(16.28~267.20)细胞数μl对47.75(6.34~143.04)细胞数/gl,P〈0.05]、Thl7细胞[+30d,2.34(0.02~6.87)细胞数/μl对0.20(0.02~1.34)细胞数/μl,P〈0.05;+60d,1.90(0.36~7.82)细胞数/μl对0.46(0.03~1.39)细胞数似l,P〈0.05]、Tcl7细胞数量(+30d,1.08(0.07~15.03)细胞数/μl对0.25(0.01~0.81)细胞数/pl,P〈0.05;+60d,1.85(0.63~26.57)细胞数仙l对0.46(0.01~3.66)细胞数仙l,P〈0.05]在+30d及+60d均明显高于HLA不合组,Thl细胞及Tcl细胞数量重建两组间差异无统计学意义。⑧Thl与Thl7细胞比值及TObjective To compare the differences of the T helper cell reeonstitution kinetics be- ween HLA matched or HLA mismatched allo-HSCT through exploring the reconstitution kinetics of CD4+ CD25+Foxp3 + cells ( CD4+Treg),CD8~CD25+Foxp3+ cells (CD8+Treg), CD4+CD25-CD 127+ conventional T cells (Tcon) and the secretion of IL-17a and IFN-r in CD4+ T cells (Thl7 and Thl cells) or CD8+ T cells (Tc 17 and Tc 17 cells) post allogeneic hematopoietic stem cells transplantation (allo- HSCT). Methods From December 2011 to October 2012, the peripheral blood (PB) of 20 patients undergoing HLA matched (10 patients) or mismatched (10 patients) allo-HSCT without acute graft-versus-host disease (aGVHD) and of 10 related healthy donors were collected to analyze the expression of CD25+Foxp3+, IL-17a, IFN-7 and CD127 expression through 8-colour Flow cytometer. Results①The reconstitution kinetics of CD3+ T cells, CD4+ T cells, CD8+ T cells absolute numbers were comparable within 2 month post HLA matched and mismatched transplantation. ②The absolute numbers of CD4+ Treg cells [ +30 d,8.46 (0.36-27.41 ) cells/μl 1. 10 (0.04- 8.03 ) cells/μl, P〈0.05; + 60 d, 8.50 ( 1.16- 36.20) cells/p.1 vs 2.73 (0.34- 6.84) cells/μl, P〈 0.05], Tcon cellsI+30 d, 72.69(3.85-211.73)cells/μl vs 13.41 (0.48-96.17)cells/p.1, P〈0.05; +60 d, 100.85 (16.28-267.20)cells/μl vs 47.75 (6.34-143.04)cells/μl, P〈0.05], as well as Thl7 cells [+30 d, 2.34(0.02- 6.87) cells/μl vs 0.20 (0.02- 1.34) cells/μl, P〈0.05; +60 d, 1.90 (0.36- 7.82) cells/lal vs 0.46 (0.03- 1.39) cells/μl, P〈0.05 ] and Tcl7 cells E +30 d, 1.08 (0.07- 15.03) cells/μl vs 0.25 (0.01-0.81) cells/μl, P〈0.05; + 60 d, 1.85 (0.63- 26.57 ) cells/μl vs 0.46 (0.01- 3.66) cells/μl, P〈0.05 ] within 2 month post HLA matched HSCT were significantly higher than those post HLA-mismatched HSCT. However, the absolute numbers of Thl cells
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