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  • Title: Modulation of the murine immune response to human IgG by complexing with monoclonal antibodies. II. Antibody responses to idiotopes of the human IgG paraprotein and of the mouse monoclonal antibodies.
    Author: Ling NR, Elliott D, Lowe J.
    Journal: Immunology; 1987 Sep; 62(1):7-10. PubMed ID: 3498685.
    Abstract:
    Anti-idiotope antibodies produced by mice immunized with a human IgG paraprotein complexed with various mouse monoclonal antibodies (McAbs) have been measured. All animals receiving more than one injection of the paraprotein (free or complexed with a mouse McAb) produced antibodies to the idiotypes of the paraprotein. Complexing with a McAb, especially an anti-Fc-gamma McAb, enhanced the response. Antibodies to the idiotopes of mouse McAbs were more difficult to produce and their production was very dependent on the mode and schedule of the immunization. The best antisera were produced by mice receiving a course of injections of pre-formed complexes of the IgG paraprotein and McAbs. Four of five mice produced antibodies to the idiotopes of an anti-light chain McAb (C4) after a course of immunization (one primary plus four boosts) of an IgG-C4 complex. Two of the six mice receiving a similar course of injections of the paraprotein complexed with an anti-gamma McAb (A55) produced high titres of antibodies to A55 idiotypes. Responses were enhanced when complexes were prepared with a pool of McAbs. It is probable that the formation of large multi-cross-linked complexes containing the McAb under study is important in generating the response. Once a response is initiated, very high titres may be achieved.
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