Optimising Expression Platforms
Employing Cell Factories for the Enhanced Production of Recombinant Proteins
12 November 2025 ALL TIMES WET (GMT/UTC)
The growing use of recombinant proteins for research in structure, targets, and therapeutics demands efficient expression and production strategies that balance yield, quality, time, and cost. With no universal system ensuring high yields, selecting the optimal host requires a deep understanding of the desired protein’s characteristics as every protein itself causes its own expression and production concerns. At PEGS Europe Cambridge Healthtech Institute’s 18th Annual Optimising Expression Platforms explores case studies comparing and evaluating expression systems, highlighting strategies to match proteins with the right hosts and overcoming production challenges. Join leading scientists as they share solutions to enhance protein expression efficiency and streamline biotherapeutic and research applications.

Wednesday, 12 November

Registration and Morning Coffee

SELECTING, ENGINEERING, AND OPTIMISING HOSTS

Chairperson's Remarks

Bjørn Voldborg, MSc, Head, National Biologics Facility, DTU Bioengineering, Technical University of Denmark , Director CHO Cell Line Development , Novo Nordisk Foundation Center for Biosustainability , Technical University of Denmark

FEATURED PRESENTATION:
Baculovirus Expression Vector System: Old Dog, New Tricks

Photo of Imre Berger, PhD, Professor of Chemistry and Biochemistry, Max Planck Centre Director, University of Bristol , Professor , Max Planck Bristol Centre for Minimal Biology , University of Bristol
Imre Berger, PhD, Professor of Chemistry and Biochemistry, Max Planck Centre Director, University of Bristol , Professor , Max Planck Bristol Centre for Minimal Biology , University of Bristol

The Baculovirus Expression Vector System (BEVS) has long been a staple for recombinant production of proteins and their complexes for a range of applications, but recent advances are enhancing its capabilities beyond traditional use. This presentation will explore emerging innovations that are transforming BEVS into a versatile platform for genome engineering, biologics production and gene therapy. We will explore how BEVS is being retooled to meet the complex demands of next-generation biologics and therapeutic pipelines and address limitations in yield and scalability, and touch on future directions for BEVS as a next-generation vector platform.

Reimagining CHO Cell Metabolism

Photo of Hooman Hefzi, PhD, Associate Professor, Advanced Mammalian Cell Engineering Group, Biotechnology and Biomedicine, Technical University of Denmark , Associate Professor , Advanced Mammalian Cell Engineering Group , Technical University of Denmark
Hooman Hefzi, PhD, Associate Professor, Advanced Mammalian Cell Engineering Group, Biotechnology and Biomedicine, Technical University of Denmark , Associate Professor , Advanced Mammalian Cell Engineering Group , Technical University of Denmark

Despite advances in process intensity and efficiency, universal mammalian cell phenotypes such as lactate and ammonia production, as well as the obligate requirement for numerous media components CHO cannot natively synthesize, have led to challenges in process optimisation without a one-size-fits-all solution. Over the last 9 years, we have developed genetic engineering strategies fundamentally reimagining these ubiquitous phenotypes in CHO and will present case studies around each in turn.

Improvement on the Detection of High-Risk Host Cell Proteins with Optimised CHO SWATH-MS Spectral Library

Photo of Sochi Ogbonna, PhD, Researcher, Manufacturing Technology Association of Biologics , Researcher , Manufacturing Technology Association of Biologics
Sochi Ogbonna, PhD, Researcher, Manufacturing Technology Association of Biologics , Researcher , Manufacturing Technology Association of Biologics

Efficient detection and analysis of high-risk host cell proteins (HCPs) are important for the production of high-quality biopharmaceuticals. In this study, we employed an optimised CHO SWATH-MS spectral library for the analysis of high-risk HCPs across various Chinese Hamster-derived cell lines, aiming to minimise false negatives and enhance HCP detection.

Coffee Break in the Exhibit Hall with Poster Viewing

Novel Technologies for Enhanced Antibody Expression, Faster Cell Line Development, and Improved Stability in CHO Cells

Photo of Zhiwei Song, PhD, CSO, Nexa Biologics, Singapore , CSO , Nexa Biologics Pte. Ltd.
Zhiwei Song, PhD, CSO, Nexa Biologics, Singapore , CSO , Nexa Biologics Pte. Ltd.

The new antibody expression vector combines two technologies that boost antibody yield, accelerate cell line development, and improve stability: (1) an attenuated Glutamine Synthetase (GS) mutant as selectin marker, and (2) an enhanced CMV promoter that, together with GS mutants, achieves a 4–5 fold expression increase at the bulk pool stage.

ENHANCING EXPRESSION: PROTEIN COMPLEXES

Preparation of Human Multi-Protein Assemblies for Structural Investigations: Recombinant Expression or Purification from Endogenous Sources?

Photo of Arnaud Poterszman, PhD, Research Director, Integrated Structural Biology, IGBMC , Research Dir , Integrated Structural Biology , IGBMC
Arnaud Poterszman, PhD, Research Director, Integrated Structural Biology, IGBMC , Research Dir , Integrated Structural Biology , IGBMC

Production/characterisation of multi-protein complexes is becoming increasingly important as the focus of molecular/structural biology progresses from analysis of individual proteins to that of multi-subunit assemblies. We will discuss the production of recombinant mid-size (3-9 subunits) complexes using multi-host plasmids libraries and streamlined procedures to assemble multi-gene expression constructs. We will also illustrate the use of a CRISPR-based approach to affinity-tag large macromolecular assemblies and facilitate their purification from endogenous source.

Luncheon in the Exhibit Hall with Poster Viewing

ENHANCING EXPRESSION: COMPLEX PROTEINS

Chairperson's Remarks

Maren Schubert, PhD, Junior Research Group Leader, Virus-Like-Particle Based Technologies, Helmholtz Center for Infection Research , Dr , Biotechnology , Helmholtz Center for Infection Research

Optimising Vector Design for High-Quality Multispecific Antibody Production

Photo of Jose Miguel Escandell Planells, PhD, Principal Scientist, iBET (Instituto de Biologia Experimental e Tecnológica) , Principal Scientist , Animal Cell Technology Unit , iBET - Instituto de Biologia Experimental e Tecnologica
Jose Miguel Escandell Planells, PhD, Principal Scientist, iBET (Instituto de Biologia Experimental e Tecnológica) , Principal Scientist , Animal Cell Technology Unit , iBET - Instituto de Biologia Experimental e Tecnologica

Multispecific antibodies (MsAbs) provide expanded therapeutic potential by engaging multiple disease targets simultaneously, but their complex multi-chain architecture poses challenges for efficient manufacturing. In this study, we systematically evaluated over 40 parameters in transposase-mediated CHO-GS cell line development, including vector number, ratio, topology, chain design, and selection strategy. Using advanced analytics to measure productivity, transcript levels, and product quality—such as correct MsAb assembly versus byproducts—we identified conditions that significantly improved both yield and purity. These findings offer valuable insights into vector engineering and process optimisation, enabling the reliable generation of high-producing clones for the manufacturing of complex MsAb therapeutics.

Virus-Like Particle Production and Characterisation for Use in Biologics Discovery Campaigns

Photo of Amberley Stephens, PhD, Associate Principal Scientist, Biologics Engineering, AstraZeneca , Associate Principal Scientist , Biologics Engineering , AstraZeneca
Amberley Stephens, PhD, Associate Principal Scientist, Biologics Engineering, AstraZeneca , Associate Principal Scientist , Biologics Engineering , AstraZeneca

High quality VLPs are challenging to produce and QC, yet are an excellent display format for complex membrane proteins with small extracellular domains. I present a comprehensive VLP QC package, including methods such as flow virometry and TEM with machine learning, for downstream standardisation with an example case study of a biologics discovery campaign.

Transition to Keynote Session

PLENARY DEEP DIVE

Panel Moderator:

PANEL DISCUSSION:
Future of Biologic Therapeutics: Will Half-Life Extended Peptides Replace Multispecific Antibodies?

Photo of Daniel Chen, MD, PhD, Founder & CEO, Synthetic Design Lab , Founder and CEO , Synthetic Design Lab
Daniel Chen, MD, PhD, Founder & CEO, Synthetic Design Lab , Founder and CEO , Synthetic Design Lab

Panelists:

Photo of Paul J. Carter, PhD, Genentech Fellow, Antibody Engineering, Genentech , Genentech Fellow , Antibody Engineering , Genentech
Paul J. Carter, PhD, Genentech Fellow, Antibody Engineering, Genentech , Genentech Fellow , Antibody Engineering , Genentech
Photo of G. Jonah Rainey, PhD, Associate Vice President, Eli Lilly and Company , Associate Vice President , Eli Lilly & Co.
G. Jonah Rainey, PhD, Associate Vice President, Eli Lilly and Company , Associate Vice President , Eli Lilly & Co.
Photo of Janine Schuurman, PhD, Biotech Consultant, Lust for Life Science B.V. , Director , Lust for Life Science B.V.
Janine Schuurman, PhD, Biotech Consultant, Lust for Life Science B.V. , Director , Lust for Life Science B.V.

Refreshment Break in the Exhibit Hall with Poster Viewing

Insect Cell-Based Virus-Like-Particle Technologies for Antibody Generation

Photo of Maren Schubert, PhD, Junior Research Group Leader, Virus-Like-Particle Based Technologies, Helmholtz Center for Infection Research , Dr , Biotechnology , Helmholtz Center for Infection Research
Maren Schubert, PhD, Junior Research Group Leader, Virus-Like-Particle Based Technologies, Helmholtz Center for Infection Research , Dr , Biotechnology , Helmholtz Center for Infection Research

Virus-like-particles (VLP) resemble a complete viral surface but do not contain viral genetic information, rendering them safe to work with. Plasmid-based expression in insect cells of VLP is a valuable alternative to the standard Baculovirus expression system. It results in similar yields while avoiding Baculovirus inherent bottlenecks like co-expression of baculoviral proteins or particles. One of the VLP applications is to facilitate antibody generation: They can serve as target in phage display and are a valuable tool for a high-throughput screening for antibody validation.

Close of Optimising Expression Platforms Conference


For more details on the conference, please contact:

Mary Ann Brown
Executive Director, Conferences
Cambridge Healthtech Institute
Phone: (+1) 781-697-7687
Email: mabrown@healthtech.com

For sponsorship information, please contact:

Companies A-K
Jason Gerardi
Sr. Manager, Business Development
Cambridge Healthtech Institute
Phone: (+1) 781-972-5452
Email: jgerardi@healthtech.com

Companies L-Z
Ashley Parsons
Manager, Business Development
Cambridge Healthtech Institute
Phone: (+1) 781-972-1340
Email: ashleyparsons@healthtech.com