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  • Title: Induction of allergic reactions in guinea pigs with purified house dust mite allergens.
    Author: Yasue M, Yokota T, Okudaira H, Okumura Y.
    Journal: Cell Immunol; 1999 Mar 15; 192(2):185-93. PubMed ID: 10087187.
    Abstract:
    To establish a guinea pig model for house dust mite allergy with purified mite allergens, we studied the immune response to two major mite allergens, native Der f 1 (nDer f 1) and recombinant Der f 2 (rDer f 2) and crude mite extract in Hartley guinea pigs. Animals were immunized with either mite extract, nDer f 1 or rDer f 2, four times at 2- to 3-week intervals. Then the guinea pigs were examined as to the status of sensitization to the sensitizing antigen. Intradermal injection of mite antigens to mite extract-, nDer f 1-, and rDer f 2-sensitized animals induced both immediate and late-phase cutaneous reactions. Allergic airway disease was also provoked by the intranasal instillation of rDer f 2 or mite extract. Anti-nDer f 1 and -rDer f 2 IgE as well as anti-mite extract IgE were produced in the sensitized guinea pigs and IgE titer for three mite antigens were comparable. We concluded that immunization of Hartley guinea pigs with nDer f 1 and rDer f 2 achieved sensitization to mite allergens, which was comparable to that obtained by the immunization with mite extract. A mite-allergic model suitable for immunological and pharmacological studies was established from rDer f 2-sensitized guinea pigs.
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