HLA-DQ8 transgenic mice lacking endogenous class II molecules respond to house dust allergens: identification of antigenic epitopes.
T Neeno, CJ Krco, J Harders, J Baisch… - … (Baltimore, Md.: 1950 …, 1996 - journals.aai.org
T Neeno, CJ Krco, J Harders, J Baisch, S Cheng, CS David
Journal of immunology (Baltimore, Md.: 1950), 1996•journals.aai.orgWe have introduced HLA-DQ8 (HLADQB* 0302 and HLA-DQA* 0301) genes into A beta 0
knockout mice. Transgenic animals were immunized with a whole body extract of
Dermatophagoides pteronyssinus (Der p), one of the causative agents of house dust mite
allergy. Transgenic mice expressing HLA-DQ8 genes elicited HLA-DQ8-restricted
responses driven by CD4+ T cells. Synthetic-overlapping peptides representing a major
allergen of house dust mite (Der p 2) were synthesized and used as immunogens. HLA …
knockout mice. Transgenic animals were immunized with a whole body extract of
Dermatophagoides pteronyssinus (Der p), one of the causative agents of house dust mite
allergy. Transgenic mice expressing HLA-DQ8 genes elicited HLA-DQ8-restricted
responses driven by CD4+ T cells. Synthetic-overlapping peptides representing a major
allergen of house dust mite (Der p 2) were synthesized and used as immunogens. HLA …
Abstract
We have introduced HLA-DQ8 (HLADQB*0302 and HLA-DQA*0301) genes into A beta 0 knockout mice. Transgenic animals were immunized with a whole body extract of Dermatophagoides pteronyssinus (Der p), one of the causative agents of house dust mite allergy. Transgenic mice expressing HLA-DQ8 genes elicited HLA-DQ8-restricted responses driven by CD4+ T cells. Synthetic-overlapping peptides representing a major allergen of house dust mite (Der p 2) were synthesized and used as immunogens. HLA-DQ8+ mice responded to three peptides: 8 (residues 61-80), 11 (residues 91-110), and 13 (residues 111-129). The mice produced IL-2, IL-4, and IL-6 response to Der p challenge, suggesting a mixed Th1/Th2 response. These mice represent a new model for studies of the immune basis of allergy.
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