Construction and Production of an IgG-Like Tetravalent Bispecific Antibody for Enhanced Therapeutic Efficacy

  • Dan Lu
  • Zhenping Zhu
Part of the Methods in Molecular Biology™ book series (MIMB, volume 525)


In past years, both laboratory and early clinical studies have demonstrated that bispecific antibodies (BsAbs) may have significant potential application in cancer therapy either by targeting tumor cells with cytotoxic agents including effector cells, radionuclides, drugs, and toxins, or by simultaneously blocking two relevant tumor targets, that is, growth factor receptors, thus neutralizing multiple receptor activation and downstream signal transduction pathways. A major obstacle in the development of BsAb has been the difficulty of producing the materials in sufficient quality and quantity by traditional technologies such as the hybrid hybridoma and chemical conjugation methods. The development of IgG-like BsAbs as therapeutic agents will depend heavily on the advances made in the design of recombinant BsAb constructs (or formats) and production efficiency. Here we describe a recombinant method for the construction and production of a novel IgG-like BsAb molecule, using the variable domains of two fully human antibodies as the building blocks.

Key words

Antibody engineering bispecific antibody single-chain fragment recombinant antibody antibody production cancer therapy 


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Copyright information

© Humana Press, a part of Springer Science+Business Media, LLC 2009

Authors and Affiliations

  • Dan Lu
    • 1
  • Zhenping Zhu
    • 1
  1. 1.ImClone Systems Inc.New YorkUSA

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