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中国临床药理学与治疗学 ›› 2006, Vol. 11 ›› Issue (9): 1030-1034.

• 研究原著 • 上一篇    下一篇

免疫治疗对毛细支气管炎后哮喘发生的干预机制研究

刘雅丽, 杨锡强1   

  1. 浙江省杭州市第一人民医院儿科, 杭州 310006, 浙江;
    1重庆医科大学附属儿童医院儿科研究所, 重庆 400014
  • 收稿日期:2006-07-11 修回日期:2006-07-11 出版日期:2006-09-26 发布日期:2020-11-05
  • 通讯作者: 杨锡强, 男, 博士生导师, 研究方向:儿童免疫学。Tel:023-63632756
  • 作者简介:刘雅丽, 女, 副主任医师, 博士, 研究方向:小儿临床免疫。Tel:13136179862 E-mail:Wjyliu@163.com
  • 基金资助:
    卫生部科研基金项目(No98-1-353)

Effect of Bacille Calmette Guerin inoculation with or without IFN-γ/Vit A on immunologic status of infant with bronchiolitis

LIU Ya-li, YANG Xi-qiang1   

  1. First Hospital of Hangzhoushi , Hangzhou 300016 , Zhejiang, China;
    1Children's Hospital , Chongqing University of Medical Sciences, Chongqing 400014 , China
  • Received:2006-07-11 Revised:2006-07-11 Online:2006-09-26 Published:2020-11-05

摘要: 目的 探讨卡介苗(Bacille Calmette Guerin ,BCG) 或联用干扰素γ(IFN-γ) /维生素A(VitA) 对毛细支气管炎患儿免疫功能状态的影响。方法 毛细支气管炎患儿共44 例, 25 例患儿给予单独BCG 或合并IFN-γ/VitA 治疗, 治疗前和治疗3个月后分别进行纯结核蛋白衍生物(PPD) 皮试, 采用ELISA 和逆转录-聚合酶链反应(RT-PCR) 方法测定外周血单个核细胞(peripheral blood mononuclear cells, PBMC)体外产生IL-12 、IL-18 、IL-10 、IL-4 、IFN-γ的水平及膜表面蛋白质分子淋巴细胞活化基因3(lymphocyte activation gene-3, LAG-3) mRNA 的表达, 并随访平均1年时间, 临床观察喘息发作的情况。19 例未接受BCG 接种的毛细支气管炎患儿, 作为疾病对照组。结果 干预后IL-12 、IL-18 、及IFN-γ水平明显高于干预前, LAG-3mRNA 的表达增强, IL-4 水平显著降低,差异具有显著意义, IL-10 水平略下降。BCG 接种后PPD 平均硬结直径大于干预前及毛细支气管炎对照组恢复期。BCG 单用或联用IFN-γ/(VitA) 组1 年内喘息发作频率低于对照组恢复期, 单用或联用组间差异无显著意义。临床疗效及细胞因子的产生在合并IFN-γ/VitA 治疗组未显示出优势。结论 BCG 可促进毛细支气管炎患儿PPD 皮试阳转、增强TH1 细胞功能的作用, 推测IL-10 水平未显著降低可能与BCG 诱导产生调节性T 细胞(CD4 +CD25 +Tr) 有关。

关键词: 毛细支气管炎, 卡介苗, PPD 反应, 辅助性T 细胞1/辅助性T 细胞2, 细胞因子

Abstract: AIM: To discuss the effects of Bacille Calmette Guerin (BCG) inoculation with or without supplement of vitamin A/IFN-γon tubercle bacillus protein purified derivative (PPD) skin test, wheezing episode and in vitro the cytokine levels of peripheral blood mononuclear cells (PBMC) in infants with acute bronchiolitis.METHODS: 44 acute bronchiolitis infants (ABI) were treated with BCG alone or BCG combined with Vitamin A/IFN-γ.19 ABI treated without BCG as control.PPD skin test, in vitro production of IL-10 、IL-12 、IL-18 、IL-4 and IFN-γby supernatant of PBMC of bronchiolitis measured by ELISA, and expression of lymphocyte activation gene-3 (LAG-3) mRNA from PBMC of bronchiolitis measured by semi-quantitative RT-PCR were observed before and 3 months after BCG inoculation.Follow upfor average 12 months was to observe thewheezing episodes.RESULTS: The diameters of PPD skin test in ABI after BCG inoculation combined with IFN-γ/VitA were larger than those of ABI before inoculation and control group.The frequencies and persistence of wheezing were lower in interfered infants with acute bronchiolitis either by BCG alone or BCG combined with IFN-γ/VitA than those of control groupby 1 year.IL-12 、IL-18 and IFN-γactivities in ABI treated with BCG or BCG combined with IFN-γ/Vitamin A in vitro were higher than those of pre-treatment bronchiolitis infants;the level of IL-4 was lower;the level of IL-10 was a little bit lower, and expression of LAG-3 mRNA was stronger.Frequency of wheezing episode in 1 year in acute bronchiolitis infants with BCG or BCG combined with IFN-γ/Vitamin A was lower than that of control group.There were no difference between ABIwith BCG or BCG combined with IFN-γ/Vitamin A.Clinical manifestation and the level of cytokines do not show superiority in BCG with IFN-γ/Vitamin A.CONCLUSION: BCG inoculation is able to enhance PPD skin test response,promote Th1 reactivity, and prevent from recurrent wheezing after acute bronchiolitis.The level of IL-10 was degraded lightly after BCG intervention, presumably concerning with regular T cells(CD4 +CD25 +Tr) induced by BCG inoculation.

Key words: bronchiolitis, Bacille Calmette Guerin, PPD skin test, TH1/TH2, cytokine

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