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重型再生障碍性贫血患者骨髓中T辅助细胞及I型树突状细胞亚群的变化

Changes of Subsets of Th Cells and Dentritic Cells I in the Bone Marrow of Severe Aplastic Anemia Patients

【作者】 何广胜

【导师】 邵宗鸿;

【作者基本信息】 中国协和医科大学 , 内科学, 2003, 博士

【摘要】 研究目的: 1.测定重型再生障碍性贫血(SAA)患者在免疫抑制治疗(IST)前后骨髓中Th1细胞、Th2细胞数量及Th1细胞/Th2细胞比值的变化; 2.测定发病期和IST后恢复的SAA患者血清中Th1型细胞因子—TNF-α的水平和Th2型细胞因子—IL-4的水平的变化; 3.评价Th1型效应细胞及效应因子—CD2+CD8+细胞、TNF-α及Yh2型细胞因子—IL-4与造血功能的关系;评价Th1细胞及Th1/Th2细胞平衡与造血功能的关系; 4.测定SAA患者在IST前后骨髓中树突状细胞1(DC1)亚群:CD1a+CD11c+细胞、CD11c+CD83+细胞的改变,探讨DC1与Th1细胞相关性及在SAA发病机制中的作用。 研究方法: 1.用流式细胞术检测24例发病期和15例IST后恢复的SAA患者骨髓中胞浆内表达IFN-γ的CD4+细胞(Th1细胞)和表达IL-4的CD4+细胞(Th2细胞)的数量和比例;并与16例正常对照组、30例病例对照组[免疫相关性血细胞减少症(IRP)组15例、骨髓增生异常综合症(MDS)组15例]比较; 2.采用放射免疫法测定20例发病期SAA患者、12例IST后恢复

【Abstract】 Purpose:1.To detect the quantity, ratio of Th1 cells and Th2 cells in bone marrow of severe aplastic anemia (SAA) patients at active and recovery phases;2. To measure the levels of IL-4, TNF-α in serum of patients with SAAat active and recovery phase;3. To evaluate the relationship between the cytokine of Thl type(TNF-a), effective cell of type Thl (CD3+CD8+ cell), the cytokine of Th2 type (IL-4) and reticulocytes (Ret), absolute number of neutrophils (ANC) of patients with SAA; the relationship between the numbers of Thl cells and TNF-α or CD3+CD8+ cells in bone marrow of patients with SAA; and explore the role of Thl cells and balance of Th1/Th2 in the pathogenic mechanism of SAA;4. To measure the percentage of CD1a+CD11c+, CD83+CD11c+ cells in bonemarrow of patients with SAA at active and recovery phases and normal controls, and evaluate the relationship between the numbers of CD83+CD11c+ cells and Thl cells or CD3+CD8+ cell, to explore the role of CD83+CD11c+ cells in the pathogenic mechanism in SAA. Methods:

  • 【分类号】R556
  • 【下载频次】123
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