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  • Title: Development and characterization of monoclonal antibodies to first-generation merozoites of Eimeria bovis.
    Author: Haeber PJ, Lindsay DS, Blagburn BL.
    Journal: Vet Parasitol; 1992 Oct; 44(3-4):321-7. PubMed ID: 1281590.
    Abstract:
    Merozoites of Eimeria bovis were harvested from bovine monocyte cell cultures and used to immunize BALB/C mice. Spleens from immunized mice were removed and the cells fused with mouse myeloma cells. Supernates from resulting hybridoma cell lines were examined for antibodies to first-generation E. bovis merozoites using an indirect immunofluorescent antibody (IFA) assay. Three positive cell lines were identified and cloned by limiting dilution. All three cell lines produced immunoglobulins of the IgG1 isotype that recognized antigens in the anterior half to two-thirds of the merozoites. Specificity of the monoclonal antibodies was examined with the IFA assay against sporozoites of E. bovis, sporozoites and merozoites of Eimeria papillata from mice and Eimeria tenella from chickens, sporozoites of Isospora suis from pigs, and tachyzoites of Toxoplasma gondii and Neospora caninum from cell cultures. Monoclonal antibodies from the three clones reacted with the anterior end of E. bovis sporozoites, but did not react with the other parasites examined. None of the monoclonal antibodies reacted with merozoite antigens in immunoblots.
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