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STUDIES ON THE COMPARISON OF FOUR DIFFERENT SOURCES DERIVED DENTRITIC CELLS
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- Author:
- No author available
- Journal Title:
- JOURNAL OF LEUKEMIA & LYMPHOMA
- Issue:
- 4
- DOI:
- 10.3760/cma.j.issn.1009-9921.2003.04.002
- Key Word:
- 树突状细胞;诱导分化;单核细胞;CD+34;白血病
Abstract： 目的:探讨正常人外周血单核细胞、肿瘤患者外周血单核细胞、脐带血CD+34细胞、非淋巴细胞白血病细胞来源的树突状细胞性能差异.方法:分别利用正常人及肿瘤患者的外周血分离单个核细胞,黏附贴壁法收集单核细胞,在GM-CSF、IL-4及TNF-α细胞因子组合下诱导树突状细胞;脐带血细胞则利用MACS系统分离纯化CD+34细胞作为树突状细胞的前体细胞,培养体系为FL+SCF+GM-CSF+IL-4+TNF-α;非淋巴细胞白血病细胞作为树突状细胞的前体细胞培养条件同CD+34细胞.流式细胞仪分析诱导细胞的表型,电镜分析细胞形态.结果:利用4种不同来源的前体细胞在不同细胞因子组合下可分别诱导出DC细胞,细胞CD1a,CD80,HLA-DR的表达较诱导分化前明显上调.细胞形态学表明4种细胞来源的DC均有较典型的DC细胞形态,并均可刺激同种异体T细胞的增生.结论;利用健康人或肿瘤患者外周血可成功诱导出树突状细胞,利用脐血CD+34细胞及部分非淋巴细胞白血病原代细胞也可体外诱生出树突状细胞,不同来源的树突状细胞在形态及初步功能上无明显区别.
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