Increased local IgE production induced by common aeroallergens and phenotypic alteration of mast cells in Chinese eosinophilic, but not non-eosinophilic, chronic rhinosinusitis with nasal polyps

被引:93
作者
Cao, P. -P. [1 ]
Zhang, Y. -N. [1 ]
Liao, B. [1 ]
Ma, J. [1 ]
Wang, B. -F. [1 ]
Wang, H. [1 ]
Zeng, M. [1 ]
Liu, W. -H. [2 ]
Schleimer, R. P. [3 ]
Liu, Z. [1 ]
机构
[1] Huazhong Univ Sci & Technol, Tongji Med Coll, Tongji Hosp, Dept Otolaryngol Head & Neck Surg, Wuhan 430074, Peoples R China
[2] Wuhan 1 Hosp, Wuhan, Peoples R China
[3] Northwestern Univ, Dept Med, Feinberg Sch Med, Div Allergy Immunol, Chicago, IL 60611 USA
基金
中国国家自然科学基金;
关键词
chronic rhinosinusitis; eosinophil; immunoglobulin E; mast cell; nasal polyps; ALLERGEN; MUCOSA; ENTEROTOXINS; INFLAMMATION; PROTEIN;
D O I
10.1111/cea.12304
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
BackgroundEosinophilic and non-eosinophilic chronic rhinosinusitis with nasal polyps (CRSwNP) display distinct patterns of inflammation. However, the pathogenic mechanisms underlying the heterogeneity of CRSwNP need further investigation. ObjectiveTo investigate local immunoglobulin E (IgE) production and phenotype of mast cells in eosinophilic and non-eosinophilic CRSwNP in Chinese. MethodsTotal and specific IgE levels were analysed by means of the ImmunoCAP system. The molecular steps involved in class-switch recombination to IgE were investigated using RT-PCR assays. Mast cell phenotypes, IgE- and high-affinity IgE receptor (Fc epsilon RI)-positive cells, and allergen binding to specific IgE in sinonasal mucosa were determined by means of immunohistochemistry. ResultsCompared with controls and non-eosinophilic CRSwNP, local total IgE levels were increased, and local specific IgE to common aeroallergens was more frequently found, in Chinese eosinophilic CRSwNP independent of atopy and without significant association with Staphylococcus aureus enterotoxins. The epsilon germline gene transcript was also more frequently detected in eosinophilic CRSwNP. The number of IgE- and Fc epsilon RI-positive cells was increased in eosinophilic CRSwNP. Most IgE- and Fc epsilon RI-positive cells were mast cells. Dust mite antigens could bind to IgE on mast cells in situ. The number of mast cells positive for both tryptase and chymase and activated mast cells was increased in eosinophilic CRSwNP and the number of activated mast cells positively correlated with local IgE level, eotaxin-1 level, and eosinophil count in CRSwNP. Conclusions and Clinical RelevanceThe local IgE induced by common aeroallergens may mediate mast cell activation and contribute to subsequent eosinophilic inflammation in Chinese CRSwNP. This study offers a rationale for considering intervention strategies designed to target local allergy' in eosinophilic CRSwNP.
引用
收藏
页码:690 / 700
页数:11
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