脂肪源间充质干细胞治疗aGVHD后T细胞亚群的变化
间充质干细胞;移植物抗宿主病;CD8+CD28-T淋巴细胞;CD4+CD25+T淋巴细胞,,],间充质干细胞;移植物抗宿主病;CD8+CD28-T淋巴细胞;CD4+CD25+T淋巴细胞,1材料与方法,2结果,3讨论,参考文献:
[摘要] 目的:探讨脂肪源间充质干细胞(adultadiposetissue–derivedmesenchymalstemcells,AMSC)治疗急性移植物抗宿主病(acutegraftversushostdisease,aGVHD)的机制。方法:3例行异基因造血干细胞移植术后发生aGVHD患者,以每公斤体重2×106个细胞剂量静脉输注AMSC;首先应用尼龙毛柱分离外周血T淋巴细胞,再经CD4或CD8免疫磁珠分选出CD8+或CD4+T淋巴细胞,应用流式细胞术检测发生aGVHD患者使用AMSC前后外周血CD8+及CD4+T细胞亚群的变化。结果:与输注AMSC前相比,输注AMSC后,CD8+T细胞中的CD8+CD28CD25--亚群显著上调,CD4+T细胞中的CD4+CD25+亚群并无明显变化,同时,患者的aGVHD得以有效控制。结论:AMSC治疗aGVHD的作用机制可能与其上调CD8+CD28-T细胞亚群有关,而与CD4+CD25+亚群可能并无直接关联。[关键词] 间充质干细胞;移植物抗宿主病;CD8+CD28-T淋巴细胞;CD4+CD25+T淋巴细胞
Changes of T Cell Subsets after Treatment with Adult Adipose TissueDerived Mesenchymal Stem Cellson Acute GraftVersusHost Disease
FANG Baijun,SONG Yongping,WEI Xudong,ZHANG Wei,CAO Ying
(Henan Tumor Hospital, Zhengzhou,Henan 45000,China)
Abstract:Objective Toinvestigate the molecular mechanism of treatment with mesenchymal stem cells (AMSC)on acute graftversushost disease (aGVHD) patients.Methods Adose of 2×106 AMSC perkg of the aGVHD patients'weight was given intravenously.T cells were harvested by using nylon column,then CD8+ or CD4+ T cells were sorted by magnetic beads ......
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