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Survey of IgE Reactivity to Nonbiting Midges in Korea and Identification of IgE-Binding Protein

 Myung-hee Yi  ;  Ju Yeong Kim  ;  Kyoung Yong Jeong  ;  Han-Il Ree  ;  Tai-Soon Yong 
 Allergy Asthma & Immunology Research, Vol.11(5) : 644-654, 2019 
Journal Title
 Allergy Asthma & Immunology Research 
Issue Date
IgE binding protein ; Nonbiting midges ; allergy
PURPOSE: Chironomids (nonbiting midges) are widely and abundantly distributed near ponds, rivers, and artificially dammed pools used for irrigation. Chironomids contain allergens and cause airway allergy in humans. In this study, we aimed to examine the allergic potential of chironomids in inhabitants living near artificially dammed pools. METHODS: We examined immunoglobulin E (IgE) reactivity to chironomid extracts in the sera of residents living around installed dams and assessed the correlations of IgE responses between chironomids (Chironomus flaviplumus, Chironomus kiiensis, Cricotopus bicinctus) and house dust mites (Dermatophagoides farinae). In addition, we identified potential IgE binding proteins specific for adult C. bicinctus, a popular species in Korea. Specific IgE antibodies in sera collected from the participants against the extracts were tested using enzyme-linked immunosorbent assay (ELISA). RESULTS: The average IgE-positive rates were 10.4%, 8.1%, and 8.2% in C. bicinctus, C. flaviplumus, and C. kiiensis, respectively. The IgE-positive rate and IgE titer of C. bicinctus antigen were higher in residents living around installed dams than in those who lived other places (P = 0.013). Western blotting using sera having high IgE titers to C. bicinctus in ELISA showed the presence of a protein of approximately 42 kDa that was homologous to the actin protein isoform in C. bicinctus extracts as demonstrated using mass spectrometry. CONCLUSIONS: Our results showed that people living near installed dams were more sensitized to C. bicinctus and that the 42 kDa IgE-binding protein could be useful for further studies on chironomid allergic disease and clinical applications.
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1. College of Medicine (의과대학) > Dept. of Environmental Medical Biology (환경의생물학교실) > 1. Journal Papers
5. Research Institutes (연구소) > Institute of Allergy (알레르기연구소) > 1. Journal Papers
Yonsei Authors
Kim, Ju Young(김주영) ORCID logo https://orcid.org/0000-0003-2456-6298
Yong, Tai Soon(용태순) ORCID logo https://orcid.org/0000-0002-3445-0769
Yi, Myung Hee(이명희) ORCID logo https://orcid.org/0000-0001-9537-5726
Ree, Han Il(이한일)
Jeong, Kyoung Yong(정경용) ORCID logo https://orcid.org/0000-0001-9887-1426
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