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首页> 外文期刊>Vaccine >Suppression of allergen reactive Th2 mediated responses and pulmonary eosinophilia by intranasal administration of an immunodominant peptide is linked to IL-10 production
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Suppression of allergen reactive Th2 mediated responses and pulmonary eosinophilia by intranasal administration of an immunodominant peptide is linked to IL-10 production

机译:鼻内给予免疫优势肽抑制过敏原反应性Th2介导的反应和肺嗜酸性粒细胞增多与IL-10产生有关

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摘要

The potential to induce systemic tolerance following exposure of the airway mucosa to soluble antigen, may be applied therapeutically for the treatment of allergic disease. Since the use of allergen can trigger IgE mediated inflammation, we investigated whether mucosal delivery of a peptide, containing an immunodominant epitope of the Der p1 allergen of house dust mite, can lead to CD4(+) Th2 cell tolerance and thus protect against airway inflammatory responses to inhalant allergen. The administration of microencapsulated peptide to the nasal mucosa of mice, protected against airway inflammation, with significant reductions in eosinophil infiltration into the airways following allergen challenge. Der p1 specific antibody levels in sera were not modulated. Allergen reactive CD4+ T cells expressed a tolerized phenotype, with reduction in levels of the cytokines, IL-5, IL-13 and IFN-gamma although IL-10 levels were increased. The mucosal administration of a peptide containing an immunodominant region of an allergen can protect against the induction of systemic and local inflammatory responses to allergen challenge.
机译:气道粘膜暴露于可溶性抗原后诱导全身耐受的潜力可用于治疗过敏性疾病。由于使用过敏原可以触发IgE介导的炎症,因此我们调查了含有尘螨Der p1过敏原的免疫显性表位的肽的粘膜递送是否会导致CD4(+)Th2细胞耐受,从而防止气道炎症对吸入性过敏原的反应。将微囊化肽给予小鼠鼻粘膜,可防止气道炎症,并在过敏原激发后显着减少嗜酸性粒细胞向气道的浸润。血清中Der p1特异性抗体水平未调节。过敏原反应性CD4 + T细胞表现出耐受的表型,尽管IL-10水平升高,但细胞因子,IL-5,IL-13和IFN-γ水平降低。含有变应原的免疫优势区域的肽的粘膜给药可以防止诱导针对变应原激发的全身和局部炎症反应。

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