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  • Title: Farmer's lung: immunological response to a group of extracellular enzymes of Micropolyspora faeni. An experimental and field study.
    Author: Nicolet J, Bannerman EN, De Haller R, Wanner M.
    Journal: Clin Exp Immunol; 1977 Mar; 27(3):401-6. PubMed ID: 862229.
    Abstract:
    Potent immunogenicity of certain extracellular 'chymotrypsin-like' enzymes of Micropolyspora faeni are demonstrated. One of them, Enzyme 1 seems particularly active in stimulating the formation of percipitins after intratracheal exposure in rabbits. Man or cattle exposed naturally to mouldy hay, either with or without clinical farmer's lung symptoms show a rather constant immunological reaction against Enzyme 1 and partly also against others of the same group. The detection of specific percipitins against these enzymes is not likely to improve the diagnostic value of the standard farmer's lung serology. Possible implications of these proteolytic enzymes in the pathogenesis of farmer's lung are discussed.
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