中国组织工程研究 ›› 2014, Vol. 18 ›› Issue (42): 6758-6762.doi: 10.3969/j.issn.2095-4344.2014.42.007

• 组织构建细胞学实验 cytology experiments in tissue construction • 上一篇    下一篇

树突状细胞体外成熟及免疫功能的18F-FDG评价

雷  霄1,梁英魁1,赵文锐1,王  升1,郭  峰1,傅  强2   

  1. 1解放军海军总医院核医学科,北京市  100048
    2珠江医院心血管内科,广东省广州市  510282
  • 修回日期:2014-09-11 出版日期:2014-10-08 发布日期:2014-10-08
  • 通讯作者: 傅强,博士,副主任医师,副教授,珠江医院心血管内科,广东省广州市 510282
  • 作者简介:雷霄,男,1979年生,湖北省荆州市人,汉族,2009年南方医科大学毕业,硕士,主治医师,主要从事心脏及肿瘤核医学、免疫机制等研究。
  • 基金资助:

    广东省科技计划项目(2010B031500030);海军总医院创新培育基金项目(CX201112)

18F-FDG effects on maturation and immune function of dendritic cells in vitro

Lei Xiao1, Liang Ying-kui1, Zhao Wen-rui1, Wang Sheng1, Guo Feng1, Fu Qiang2   

  1. 1Department of Nuclear Medicine, Navy General Hospital, Beijing 100048, China
    2Department of Cardiovascular Medicine, Zhujiang Hospital, Guangzhou 510282, Guangdong Province, China
  • Revised:2014-09-11 Online:2014-10-08 Published:2014-10-08
  • Contact: Fu Qiang, M.D., Associate chief physician, Associate professor, Department of Cardiovascular Medicine, Zhujiang Hospital, Guangzhou 510282, Guangdong Province, China
  • About author:Lei Xiao, Master, Attending physician, Department of Nuclear Medicine, Navy General Hospital, Beijing 100048, China
  • Supported by:

    the Science and Technology Plan Project of Guangdong Province, No. 2010B031500030; the Innovative and Culture Fund of Navy General Hospital, No. CX201112

摘要:

背景:既往研究表明,不同剂量的电离辐射对树突状细胞的成熟、免疫功能等也可能有一定的影响。
目的:分析不同浓度的18F-FDG对体外培养的人外周血单个核细胞源性树突状细胞的成熟及免疫功能的影响。
方法:人外周血单个核细胞源性树突状细胞诱导成熟后,分为5组,分别加入含PBS及92.5×104,185×104,370×104,740×104 Bq/mL浓度的18F-FDG培养基,作用24 h后收集细胞,检测树突状细胞的凋亡率、细胞表型(CD1α、CD80、CD83、CD86、HLA-DR)表达、同种混合淋巴细胞反应及细胞培养上清液中的巨噬细胞炎性蛋白1α和单核细胞趋化因子1表达。
结果与结论:740×104 Bq/mL浓度的18F-FDG可以引起树突状细胞的凋亡、CD86的表达下调,同种T细胞抗原提呈能力下降,单核细胞趋化因子1的分泌下降;其余浓度的18F-FDG对树突状细胞的成熟及免疫功能无明显影响。结果表明较低浓度的18F-FDG对树突状细胞的凋亡、成熟、抗原提呈、迁移能力等影响较小,可以在选择合适浓度的前提下作为一种树突状细胞细胞的体外标记物。



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

关键词: 组织构建, 组织工程, 树突状细胞, 凋亡, 细胞表型, 免疫功能, 趋化因子

Abstract:

BACKGROUND: Previous studies have shown that different doses of ionizing radiation may have some impact on maturation and immune function of dendritic cells.
OBJECTIVE: To evaluate the effect of 18F-FDG with different concentrations on maturation and immune function of dendritic cells from human peripheral blood mononuclear cells in vitro.
METHODS: Human peripheral blood mononuclear cells-derived mature dendritic cells were divided into five groups: PBS, 92.5×104, 185×104, 370×104, 740×104 Bq/mL 18F-FDG were separately added into each group. Dendritic cells were collected 24 hours later. Apoptosis rate, phenotypic expression (CD1α, CD80, CD83, CD86, HLA-DR), ability of mixed lymphocyte reaction and expression of macrophage inflammatory protein 1α and monocyte chemotactic factor-1 in cell culture supernatant were detected.
RESULTS AND CONCLUSION: Apoptosis rate, phenotypic expression of CD86, ability of mixed lymphocyte reaction and expression of monocyte chemotactic factor-1 were down-regulated after culture in 740×104 Bq/mL 18F-FDG. However, 18F-FDG at other concentrations had no influence on maturation and immune function of dendritic cells. This study demonstrates that low-concentration 18F-FDG has little influence on apoptosis, maturation, antigen presentation, and migratory capacity of dendritic cells, and it may be selected at an appropriate concentration as a label for dendritic cells in vitro.



中国组织工程研究
杂志出版内容重点:组织构建;骨细胞;软骨细胞;细胞培养;成纤维细胞;血管内皮细胞;骨质疏松组织工程


全文链接:

Key words: dendritic cells, chemotactic factors, immunity

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