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The Localization of Allergens of Paragonimus westermani by Pleural Exudates from Patients
Teruaki Ikeda, Yosaburo Oikawa, Makoto Owhashi and Yukifumi Nawa
The Journal of Parasitology
Vol. 77, No. 6 (Dec., 1991), pp. 923-926
Stable URL: http://www.jstor.org/stable/3282743
Page Count: 4
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The allergens of the lung fluke Paragonimus westermani were localized by indirect immunostaining in adult fluke sections using pleural exudates from 3 patients with P. westermani. Immunostaining performed by using pleural exudate with the highest level of specific IgE revealed that the P. westermani major allergen (or allergens) was located in the gut epithelium and luminal contents and that minor allergens were in the tegument and parenchyma. The antigens recognized by specific IgG were located at various sites including those recognized by specific IgE. Paragonimus westermani-specific IgE cross-reacted with only the gut of 2 other Paragonimus species, Paragonimus miyazakii and Paragonimus ohirai. The major allergen in the gut also was recognized by the other 2 pleural exudates. These results indicate that the substance present in and secreted from the gut is not only a major allergen but is also a common allergen among Paragonimus species.
The Journal of Parasitology © 1991 The American Society of Parasitologists