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  • Title: Mouse monoclonal antibodies against human cancer cell lines with specificities for blood group and related antigens. Characterization by antibody binding to glycosphingolipids in a chromatogram binding assay.
    Author: Hansson GC, Karlsson KA, Larson G, McKibbin JM, Blaszczyk M, Herlyn M, Steplewski Z, Koprowski H.
    Journal: J Biol Chem; 1983 Apr 10; 258(7):4091-7. PubMed ID: 6833243.
    Abstract:
    Solid phase radioimmunoassay and a chromatogram binding assay were used to characterize the binding specificities of five monoclonal antibodies generated from mice immunized with human tumor cell lines when tested against various glycolipids. Four antibodies derived from mice immunized with pancreatic carcinoma cells detected specifically the human blood group B determinant, Gal alpha 1 leads to 3Gal (2 comes from 1 alpha Fuc). These antibodies preferred type 2 (Gal beta 1 leads to 4GlcNAc) glycolipids. No reactivity was detected with a rat B determinant based on GalNAc. An antibody derived following immunization with a rectal carcinoma cell line was shown to have binding properties identical with those of an antibody that reacts specifically with the stage-specific embryonic mouse antigen (SSEA-1), bearing the determinant Gal beta 1 leads to 4GlcNAc (3 comes from 1 alpha Fuc) (Gooi, H. C., Feizi, T., Kapadia, A., Knowles, B. B., Solter, D., and Evans, M. J. (1981) Nature 292, 156-158). Thin layer chromatography was used to detect the binding of a monoclonal anti-tumor antibody recently shown to react with a sialylated Lea glycolipid (Magnani, J. L., Nilsson, B., Brockhaus, M., Zopf, D., Steplewski, Z., Koprowski, H., and Ginsburg, V. (1982) Fed. Proc 41, 898) and an anti-Leb antibody (Brockhaus, M., Magnani, J. L., Blaszczyk, M., Steplewski, Z., Koprowski, H., Karlsson, K.-A., Larson, G., and Ginsburg, V. (1981) J. Biol. Chem. 256, 13223-13225) to mixtures of glycolipids from normal and tumor tissues.
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