Comparison of Sensitization to Crude and Purified House Dust Mite Allergens in Inbred Mice
Abstract:To establish a murine model for house dust mite allergy to purified mite allergens, we studied the immune response to two major mite allergens, native Dermatophagoides farinae 1 (nDer f 1) and recombinant Der f 2 (rDer f 2), and crude mite extract in four mouse strains, A/J, BALB/c, C57BL/6, and C3H/He. Mice were immunized with mite extract, nDer f 1 or rDer f 2, three times at 2-week intervals. Then mice were examined to determine status of sensitization to the antigen. Anti-mite extract IgE production was induced in all strains, and plasma IgE concentration did not differ much among the four strains. In contrast, IgE response to nDer f 1 and rDer f 2 indicated an intra-strain difference. The A/J mice had high responses to both antigens, whereas BALB/c did not respond to rDer f 2. The C57BL/6 and C3H/He mice had moderate to low IgE responses to nDer f 1 and rDer f 2. Immediate airway constriction was provoked by inhalation of mite extract or rDer f 2 in sensitized mice, and the degree of the immediate response was almost proportional to antigen-specific IgE concentration. We concluded that immunization of inbred mice with nDer f 1 and rDer f 2 achieved sensitization to mite allergens. Among the four strains, A/J mice with H-2 a haplotype were the highest responder to mite allergens.
Document Type: Research Article
Affiliations: 1: Bioscience Research and Development Laboratory, Asahi Breweries Ltd., Ibaraki, Japan, Bioscience Research and Development Laboratory, Asahi Breweries Ltd., 1-21, Midori 1-chome, Moriyacho, Kitasoma-gun, Ibaraki 302-0106, Japan 2: Bioscience Research and Development Laboratory, Asahi Breweries Ltd., Ibaraki, Japan 3: Department of Medicine and Physical Therapy, Faculty of Medicine, University of Tokyo, Tokyo, Japan
Publication date: August 1, 1998
Comparative Medicine (CM), an international journal of comparative and experimental medicine, is the leading English-language publication in the field and is ranked by the Science Citation Index in the upper third of all scientific journals. The mission of CM is to disseminate high-quality, peer-reviewed information that expands biomedical knowledge and promotes human and animal health through the study of laboratory animal disease, animal models of disease, and basic biologic mechanisms related to disease in people and animals.
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