BsAb Manufacturing
With the rapid development of recombinant protein technology, numerous BsAbs have emerged as therapeutic proteins. Creative Biolabs offers three approaches to develop BsAbs for customers: hybrid-hybridoma technology by the somatic fusion of two different hybridoma cell lines; chemical conjugation based on chemical crosslinkers; and genetic methods using recombinant DNA technology.
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BsAb Manufacturing
Recombinant expression allows for the generation of structurally and functionally defined molecules including IgG-like molecules, appended IgGs, BsAb fragments and bispecific fusion proteins. Moreover, BsAb humanization or fully human BsAbs can be implemented to reduce immunogenicity.
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Chemical Conjugation is an alternative way to generate BsAbs. This method facilitates chemical coupling of two parental antibodies obtained from recombinant expression or hybridomas. Currently, homobifunctional (such as DTNB and o-PDM) or heterobifunctional (such as SPDP and EDC) cross-linkers are used in the conjugation protocols.
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BsAb Manufacturing
BsAb Manufacturing
At the early stage of BsAb development, somatic hybridization of two hybridomas were widely used. BsAbs created by hybrid-hybridoma are mainly IgG-like molecules, which generally have longer serum half-lives than bispecific fragments, and maintain Fc-mediated effector functions, including antibody-dependent cellular phagocytosis (ADCP), antibody-dependent cell-mediated cytotoxicity (ADCC), as well as complement-dependent cytotoxicity (CDC).
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Novel Platforms Facilitate Innovative and Efficient BsAb Development