检验医学 ›› 2016, Vol. 31 ›› Issue (3): 176-179.DOI: 10.3969/j.issn.1673-8640.2016.03.006

• 儿童感染性疾病专题 • 上一篇    下一篇

干扰素-γ释放试验在儿童结核感染中的应用价值

钟华清1, 徐梦华1, 卢丽娟1, 杜亚娟2, 张洁琼2, 徐锦1   

  1. 1.复旦大学附属儿科医院临床检验中心,上海 201102
    2.上海复星长征医学科学有限公司,上海 200444
  • 收稿日期:2015-05-22 出版日期:2016-03-30 发布日期:2016-04-08
  • 作者简介:null

    作者简介:钟华清,女,1986年生,硕士,助理研究员,主要研究方向为微生物感染与免疫。

    通讯作者:徐 锦,联系电话:021-64931893。

  • 基金资助:
    上海市公共卫生优秀学科带头人计划(GWDTT201221)

Significance of interferon-gamma release assay in child tuberculosis infection

ZHONG Huaqing1, XU Menghua1, LU Lijuan1, DU Yajuan2, ZHANG Jieqiong2, XU Jin1   

  1. 1. Clinical Laboratory Center,Children's Hospital of Fudan University,Shanghai 201102,China
    2. Shanghai Fosun Long March Medical Science Co.,Ltd.,Shanghai 200444,China
  • Received:2015-05-22 Online:2016-03-30 Published:2016-04-08

摘要:

目的评价干扰素-γ(IFN-γ)释放试验(IGRA)对儿童结核感染的诊断价值。方法采用以结核分枝杆菌特异性抗原——早期分泌抗原靶6(ESAT-6)和培养滤液蛋白10(CFP-10)为基础,基于酶联免疫斑点法(ELISPOT)的IGRA(即T-SPOT)检测了2 200 例非结核病患儿和34例活动性结核病患儿体内特异性T淋巴细胞分泌的IFN-γ水平,评价其在儿童活动性结核病和结核分枝杆菌潜伏感染中的敏感性和特异性,同时分析了该实验的各项影响因素。结果T-SPOT诊断活动性结核病的敏感性为73.5%、特异性为99.0%。T-SPOT检测结果与性别、年龄、卡介苗接种史、结核病接触史、机体免疫状态和感染部位无关。结论T-SPOT敏感性较高,特异性强,有助于儿童活动性结核病的早期快速诊断。

关键词: 干扰素-γ释放试验, 酶联免疫斑点法, 结核感染, 儿童, 敏感性, 特异性

Abstract:

Objective To evaluate the significance of interferon-gamma (IFN-γ) release assay(IGRA) for diagnosis of tuberculosis infection in child. Methods Mycobacterium tuberculosis-specific antigen [early-secreted antigenic target-6 (ESAT-6)and culture filtrate protein-10 (CFP-10)] was used. By IGRA enzyme-linked immunospot assay(ELISPOT)(T-SPOT),34 active tuberculosis children and 2 200 non-tuberculosis children were enrolled and determined for IFN-γ levels,and the sensitivity and specificity were evaluated. Some of influential factors were analyzed. Results The sensitivity and specificity of T-SPOT for the diagnosis of active tuberculosis were 73.5% and 99.0%,respectively. The results of T-SPOT had no relationship with sex,age,Bacillus Calmette-Guerin vaccination status,the history of exposure to source case,immunity state and infection position. Conclusion T-SPOT is sensitive,specific and helpful for early and rapid diagnosis of active tuberculosis in children.

Key words: Interferon-gamma release assay, Enzyme-linked immunospot assay, Tuberculosis infection, Child, Sensitivity, Specificity

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