Relevant peptides of Taenia crassiceps for the diagnosis of bovine cysticercosis by immunoblot
2015
L.F. Silva | P.S.A. Pinto | C.T.S. Ducas | T.O. Santos | E.C.A. Nieto | R.P.M.G. Peixoto
Given the limited knowledge about the diagnosis of bovine cysticercosis by immunoblot, the aim of this study was to assess the applicability of this test, identifying key peptides with diagnostic value. Immunoblot assays were performed using total larval antigen of Taenia crassiceps and 60 sera of positive bovines for cysticercosis (30 naturally and 30 experimentally infected with T. saginata eggs), 30 sera of negative bovines for cysticercosis and 30 sera of bovines with other diseases (fascioliasis, hydatidosis and tuberculosis). The peptides of greater diagnostic importance, in descending order of accuracy (%), were as follows: 6-8kDa (90.8%), 129-143kDa (74.2%), 99-105kDa (71.7%) and 14-19kDa (71.1%). Cross-reactions, due to fascioliasis and hydatidosis, were observed in the four intervals of peptides highlighted. The results demonstrate that the total antigen of T. crassiceps has peptides with a high diagnostic potential; therefore, the immunoblot is useful in the diagnosis of bovine cysticercosis.
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