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Monoclonal antibodies produced by in vitro immunization with sera of human-xenotransplant-bearing mice

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Sproll,  M
Anderer Group, Friedrich Miescher Laboratory, Max Planck Society;

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Spindler,  E
Anderer Group, Friedrich Miescher Laboratory, Max Planck Society;

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Anderer,  FA
Anderer Group, Friedrich Miescher Laboratory, Max Planck Society;

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Citation

Sproll, M., Spindler, E., & Anderer, F. (1988). Monoclonal antibodies produced by in vitro immunization with sera of human-xenotransplant-bearing mice. Immunology Letters, 17(1), 29-33. doi:10.1016/0165-2478(88)90097-1.


Cite as: https://hdl.handle.net/21.11116/0000-000C-0FB8-5
Abstract
In vitro immunization procedures, using sera of athymic mice bearing human WOC ovarian tumors or CM III mammary tumors as immunizing antigen, induced a highly efficient formation of mABs (44% of antibody-producing clones) reacting with human ovarian and/or mammary tumor cells. More than half of these mABs showed cross-reactivity with mouse cell lines. Immunogenicity of normal mouse components in the sera from tumor bearers can be excluded since control immunization with sera of normal athymic mice yielded no mABs reacting with mouse or human cell lines. Furthermore, immunization with sera from tumor bearers did not induce mABs only reacting with mouse cells since 20% of the antibody-producing clones showed an exclusive specificity for the human tumor cells. On the basis of these results we concluded that the human-mouse cross-reacting mABs were induced by circulating human TAA with epitopes shared by mouse cellular components.