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  • Title: Induction of an anti-human type II collagen response by monoclonal anti-idiotypic antibody.
    Author: Iribe H, Kabashima H, Kakimoto K, Koga T.
    Journal: J Immunol; 1988 Jun 15; 140(12):4151-6. PubMed ID: 2453569.
    Abstract:
    Several distinct epitopes on human type II collagen were defined by using mAb. The presence of species-specific and species-nonspecific (common) epitopes was thus clarified. Anti-idiotypic mAb (Ab2) was developed against one of the antibodies (Ab1) reactive with species-specific epitopes. Thus Ab2 was demonstrated to recognize an idiotope expressed on the Ag-binding site (paratope) of Ab1, since the binding of Ab1 to human type II collagen was blocked by Ab2, and the binding of Ab2 to Ab1 was inhibited by soluble human type II collagen, but not by murine and bovine type II collagens. DBA/1 mice immunized with Ab2 coupled to keyhole limpet hemocyanin produced an antibody (Ab3) specifically reactive with human type II collagen. It was also demonstrated that Ab3 expressed an idiotype similar to that of Ab1. These findings indicate that anti-idiotypic antibody directed against mAb to human type II collagen mimics a species-specific epitope on human type II collagen. The anti-idiotypic antibody bearing internal image of type II collagen will open the way to isolation of the arthritogenic epitope on type II collagen.
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