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Updated: Jun 22, 2025

Quantitation of Protein Expression and Co-localization Using Multiplexed Immuno-histochemical Staining and Multispectral Imaging
Published on: April 8, 2016
Expression of Multispecific Antibodies
Megane Peltret1, Angelique Schmid1, Lionel Duarte1
1Ichnos Sciences SA, La Chaux-de-Fonds, Switzerland.
Developing bispecific antibodies for unmet medical needs is complex. This study presents an optimized method using the BEAT® interface for efficient expression and purification of bispecific antibodies, reducing impurities.
Area of Science:
- Biopharmaceutical development
- Protein engineering
- Antibody therapeutics
Background:
- Bi- and multispecific antibodies offer novel therapeutic strategies for unmet medical needs.
- Their development presents challenges in expression and purification compared to monoclonal antibodies (mAbs) due to increased molecular complexity.
Purpose of the Study:
- To describe an optimized methodology for the expression and purification of basic bispecific antibodies.
- To leverage the BEAT® interface for enhanced antibody production and impurity removal.
Main Methods:
- Utilized the BEAT® interface for bispecific antibody expression.
- Implemented a purification strategy integrated with the BEAT® interface to remove product-related impurities.
Main Results:
- Achieved high levels of heterodimer bispecific antibody product, with reported titers exceeding 10 g/L.
- Successfully removed residual undesired product-related impurities, including homodimers and half molecules.
Conclusions:
- The described methodology enables efficient expression and purification of bispecific antibodies.
- The BEAT® interface facilitates high-titer production and effective impurity control, advancing bispecific antibody development.
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