Secretory Excretory and Somatic Immunogenic Antigens Profiles of Adult Fasciola spp.

Abstract

Fascioliasis is a common human-animal disease that is reported in most parts of the world. Fascioliasis is also prevalent in different provinces of Iran. Since it has done no study on the excretory/secretory and somatic immunogenic antigens profiles of adult Fasciola in Iran, the present study was performed on the Fasciola spp. collected from Mazandaran province. For this purpose, the Fasciola worm was isolated from the liver of infected sheep, then its excretory/secretory and somatic antigens were prepared from adult worms. The protein of the samples was measured by the Lowry method. Then, somatic and secretory excretions were examined by SDS-PAGE and the protein profile of the two substances was determined. To evaluate the immunogenicity, the somatic and secretory excretions antigens of Fasciola spp. were injected into white rabbits and after boosting, the blood serum of the rabbits was collected and then Western blotting was performed on them and the results were evaluated. According to the results of Western blotting, 11 somatic antigen bands with a molecular weight of 149, 122, 99, 85, 75, 65, 50, 46, 40, 37, 30 kDa and 12 protein bands of excretory/secretory antigens with molecular weights of 100, 82, 75, 70, 58, 55, 47, 40, 38, 37, 30,25 kDa were observed in adult Fasciola spp. that immunogenic, which appear to have a protective effect or can be used to prepare a diagnostic kit.