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补体攻膜复合物C5b-9处理后的树突状细胞对同种异体淋巴细胞的作用

吴佩泽1,华树成2,杨雪梅1   

  1. (1.解放军总医院内科临床部,北京100853;2.吉林大学第一医院呼吸内科,吉林 长春 130021)
  • 收稿日期:2007-10-10 修回日期:1900-01-01 出版日期:2008-01-28 发布日期:2008-01-28
  • 通讯作者: 华树成

Effects of dendritic cells stimulated with C5b-9 on allogenic lymphocytes

WU Pei-ze1,HUA Shu-cheng2,YANG Xue-mei1   

  1. (1.Deparment of Medical Clinic,General Hospital of PLA,Beijing 100853,China;2.Department of Respiratory Diseases,First Hospital,Jilin University,Changchun 130021,China)
  • Received:2007-10-10 Revised:1900-01-01 Online:2008-01-28 Published:2008-01-28
  • Contact: HUA Shu-cheng

摘要: 目的:研究补体攻膜复合物C5b-9处理后的树突状细胞(DC)对同种异体淋巴细胞的作用。方法:于DC表面组装C5b-9,并用免疫磁珠分离CD4+ T、CD8+ T细胞,DC/T细胞共培养,流式细胞仪检测T细胞的活化标志,ELISA定量检测细胞因子的释放结果:免疫磁珠成功分离出的高纯度的CD4+ T、CD8+ T细胞分别与补体攻膜复合物C5b-9处理后的DC混合培养72 h后,CD4+ T的CD25和CD69的表达率明显上升(P<0.05),分别为26.31%和52.73%;IFN-γ、IL-2分别由混合培养前的126.3 ng•L-1和156.7 ng•L-1上升为409.2 ng•L-1和471.5 ng•L-1(P<0.05);IL-10变化不明显,混合培养前后分别为104.3 ng•L-1和107.1 ng•L-1; CD8+ T表达CD25、CD69和分泌细胞因子变化均不明显。 结论:C5b-9可以调节DC的功能,进而调节T细胞免疫反应。

关键词: 树突状细胞, T细胞, 免疫排斥, 免疫耐受

Abstract: To study the effect of dendritic cells(DC) stimulated with C5b-9 on allogenic lymphocytes. Methods DC was stimulated with C5b-9.CD4+ T and CD8+ T cells were isolated by magnetic-activated cell sorting (MACS),and were cocultivated with DC.The maturation markers and cytokine secretion of T cells were analyzed by flow cytometry and ELISA. Results The high pure CD4+ T and CD8+ T cells were separated successfully.After cocultivated with DC,the muturation markers CD25 and CD69 of CD4+ T were up-regulated by 26.31% and 52.73%,and IL-2 and IFN-γ of CD4+ T cells were promoted from 126.3 ng•L-1 and 156.7 ng•L-1 to 409.2 ng•L-1 and 471.5 ng•L-1;the lev els of IL-10 before and after coculture were 104.3 ng•L-1 and 107.1 ng•L-1.However these markers and cytokine secretion of 〖JP2〗CD8+ T were not influenced.Conclusion C5b-9 can adjust the function of DC and regulate the immuological response of T cells.

Key words: dendritic cells, T cells, immunological exclusion, immunological tolerance

中图分类号: 

  • R392.1