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Idiotypic-anti-idiotypic antibody interactions in experimental radioimmunotargeting.
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1999 (English)In: Clinical Cancer Research, ISSN 1078-0432, E-ISSN 1557-3265, Vol. 5, no 10 Suppl, 3073s-3078s p.Article in journal (Refereed) Published
Abstract [en]

Idiotypic-anti-idiotypic antibody interactions can be used in vivo to regulate the serum levels of specific radiolabeled antibodies. Anti-idiotypic antibodies can also be used as clearing agents for radiolabeled antibodies in radioimmunolocalization and radioimmunotherapy. The present study describes the immunochemical interactions between the monoclonal idiotype (H7) and three generated monoclonal anti-idiotypic antibodies (alphaH7:1, alphaH7:35, and alphaH7:38). An unexpected variability in complex formation could be demonstrated in vitro, revealing three different stable complex patterns, i.e., low molecular weight 1:1 complexes, ladder formation with oligomeric, consecutively added constituents, and large linear polymeric complexes of high molecular weight. Within 24 h, the anti-idiotypes were able to cause a significant decrease in total body radioactivity, and the antibody generating a ladder formation (alphaH7:38) was found to be the most efficient at removing radiolabeled idiotypes from the circulation. It is concluded that monoclonal anti-idiotypic antibodies may be valuable tools in improving radioimmunolocalization and radioimmunotargeting.

Place, publisher, year, edition, pages
1999. Vol. 5, no 10 Suppl, 3073s-3078s p.
URN: urn:nbn:se:umu:diva-41869PubMedID: 10541346OAI: diva2:407976
Available from: 2011-04-01 Created: 2011-04-01 Last updated: 2011-04-01

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Riklund, KatrineStigbrand, Torgny
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