Allergic Contact Dermatitis to Low Molecular Weight Allergens in the Chicken

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Abstract
We have produced allergic contact dermatitis (ACD) to low molecular weight allergens in the chicken. Sensitization was induced by the application of a high concentration of allergen to a site on the comb previously treated with dimethyl sulfoxide. Challenge, which was made on the wattle with a nonirritating concentration of allergen, resulted in a dermatitis that was grossly and histologically similar to ACD in mammals. Chickens sensitized to oxazolone reacted to that allergen and not to picryl chloride, and conversely. This model provides a unique system wherein to study the T-cell and B-cell contributions to the generation, maintainance and expression of the ACD response.

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