A novel T cell-regulated mechanism modulating allergen-induced airways hyperreactivity in BALB/c mice independently of IL-4 and IL-5.

A novel T cell-regulated mechanism modulating allergen-induced airways hyperreactivity in BALB/c mice independently of IL-4 and IL-5.
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一种新型 T 细胞调节机制,独立于 IL-4 和 IL-5 调节 BALB/c 小鼠中过敏原诱导的气道高反应性。

DOI:
10.4049/jimmunol.161.3.1501
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发表时间:
1998
影响因子:
4.4
通讯作者:
Paul S. Foster
Paul S. Foster
中科院分区:
医学2区
文献类型:
--
作者:
S. Hogan;K. Matthaei;Janine M. Young;Aulikki M. L. Koskinen;Ian G. Young;Paul S. Foster

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IL-4和IL-5的免疫调节功能已确定这些细胞因子是解决哮喘气道炎症和支气管高反应性的主要靶点。然而,这些细胞因子和il -5调节的嗜酸性粒细胞在哮喘小鼠模型中诱导气道高反应性的个体贡献仍然存在高度争议。在这项研究中,我们使用具有相同遗传背景的IL-4和il -5缺陷小鼠,结合对这些细胞因子的抑制单抗,明确确定这些因素对诱导气道高反应性的贡献。野生型OVA小鼠致敏和气致过敏原激发可引起呼吸道上皮病理改变、气道嗜酸性粒细胞增多和对-甲胆碱的高反应性。抑制IL-4和/或IL-5的作用并不能消除气道的高反应性,并且在使用抗IL-5单抗预处理的IL-4缺陷小鼠的情况下,气道的高反应性在没有明显的气道炎症的情况下持续存在。气道高反应性仅通过抗cd4 + mAb治疗消除。然而,对IL-5-/-小鼠的空气过敏原攻击表明,气道的形态学变化与IL-5和嗜酸性粒细胞密切相关。这项研究表明,在BALB/c小鼠中存在一种新的CD4+ T细胞通路来调节气道的高反应性。这些发现可能解释了在某些哮喘病例和哮喘动物模型中观察到的气道嗜酸性粒细胞与气道高反应性的分离。
The immunoregulatory functions of IL-4 and IL-5 have identified these cytokines as primary targets for the resolution of airways inflammation and bronchial hyperreactivity in asthma. However, the individual contribution of each of these cytokines and of IL-5-regulated eosinophilia to the induction of airways hyperreactivity in mouse models of asthma remains highly controversial. In this investigation, we have used IL-4- and IL-5-deficient mice of the same genetic background in combination with inhibitory mAbs to these cytokines to identify unequivocally the contribution of these factors to the induction of airways hyperreactivity. Sensitization and aeroallergen challenge of wild-type mice with OVA induced pathological changes to the respiratory epithelium, airways eosinophilia, and hyperreactivity to beta-methacholine. Inhibition of the actions of IL-4 and/or IL-5 did not abolish airways hyperreactivity, and in the case of IL-4-deficient mice pretreated with anti-IL-5 mAb, airways hyperreactivity persisted in the absence of pronounced airways inflammation. Airways hyperreactivity was abolished only by anti-CD4+ mAb treatment. However, aeroallergen challenge of IL-5-/- mice showed that morphologic changes to the airways were critically linked to IL-5 and eosinophilia. This investigation demonstrates the existence in BALB/c mice of a novel CD4+ T cell pathway for modulating airways hyperreactivity. These findings may provide an explanation for the dissociation of airways eosinophilia from the development of airways hyperreactivity observed in some cases of asthma and in animal models of this disease.
抗原依赖性晚期哮喘中低密度嗜酸性粒细胞的出现。
DOI: 10.1164/ajrccm/139.6.1401
发表时间: 1989
期刊: The American review of respiratory disease
影响因子: --
作者:
Frick,WE;Sedgwick,JB;Busse,WW
通讯作者: Busse,WW
DOI: 10.1164/ajrccm/137.1.62
发表时间: 1988
期刊: The American review of respiratory disease
影响因子: --
作者:
A. Wardlaw;S. Dunnette;G. Gleich;J. Collins;A. Kay
通讯作者: A. Wardlaw;S. Dunnette;G. Gleich;J. Collins;A. Kay
DOI: 10.4049/jimmunol.145.11.3796
发表时间: 1990-12
影响因子: 4.4
作者:
S. Swain;A. Weinberg;M. English;G. Huston
通讯作者: S. Swain;A. Weinberg;M. English;G. Huston
DOI: 10.1016/0091-6749(88)90931-1
发表时间: 1988-05-01
影响因子: 14.2
作者:
GLEICH, GJ;FLAVAHAN, NA;VANHOUTTE, PM
通讯作者: VANHOUTTE, PM
DOI: 10.1016/0091-6749(91)90158-k
发表时间: 1991-10-01
影响因子: 14.2
作者:
BROIDE, DH;GLEICH, GJ;WASSERMAN, SI
通讯作者: WASSERMAN, SI