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  • Title: Comparison of sensitization to crude and purified house dust mite allergens in inbred mice.
    Author: Yasue M, Yokota T, Suko M, Okudaira H, Okumura Y.
    Journal: Lab Anim Sci; 1998 Aug; 48(4):346-52. PubMed ID: 10090041.
    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-2a haplotype were the highest responder to mite allergens.
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