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  • Title: Schistosoma mansoni: detection by monoclonal antibody of a 22,000-dalton surface membrane antigen which may be blocked by host molecules on lung stage parasites.
    Author: Harn DA, Mitsuyama M, Huguenel ED, David JR.
    Journal: J Immunol; 1985 Sep; 135(3):2115-20. PubMed ID: 4020141.
    Abstract:
    Monoclonal antibody M.2 binds to the surface membranes of cercariae and developing schistosomula. This antibody was generated from mice immunized with membrane-enriched extracts of mechanically transformed schistosomula. The antigen detected by M.2 was shown to persist on developing schistosomula for at least 96 hr post-transformation. M.2 also bound to the surface of living, cultured lung worms but not to freshly harvested lung worms. The ability of M.2 to bind to cultured lung worms coincided with the loss of host H-2 from the parasite surface. The apparent m.w. of the antigen was 22,000; an antigen with the same apparent m.w. was immunoprecipitated from cercariae, schistosomula, lung worms, and adult worms.
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