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Scale-Up of Adherent Vero Cells Grown on Cytodexâ„¢ Microcarriers Using ReadyToProcess Equipment

In cell culture-based vaccine production, scale-up of adherent cells is challenging. This study shows a process for scaling up adherent Vero cells from static cell factories to influenza production at 50 L scale using WAVE Bioreactorâ„¢ systems and ReadyToProcess singleuse equipment. Vero cells were grown to high cell density on Cytodex microcarriers in 10 L working volume. The cells were detached with trypsin and used to seed a 50 L production culture with the same microcarrier concentration. The cells were allowed to reattach and grow on the new microcarriers in a larger Cellbagâ„¢ bioreactor chamber. Cells were subsequently infected with influenza virus. The results show a repeatable scaleup procedure.

Overview of a Scale-Up of a Cell-Based Influenza Virus Production Process

The aim of this white paper is to demonstrate how GE Healthcare Life Sciences single-use products can be applied in the field of vaccine manufacturing. A brief discussion around modern vaccine processes is followed by a case study showing the scale-up of upstream and downstream processes for the production of a cell based live attenuated influenza virus using single-use ReadyToProcess technology. Single-use equipment enables quick changeover between products, minimizes risk for cross-contamination between batches, and reduces the need for cleaning and validation operations.

A Short History of Cell Culture Media and the Use of Insulin

A surprising history of cell culture media and the use of insulin, outlining the basic developments behind growing mammalian cells.

It will take you on a journey from the late 1800 where organ tissues were kept in balanced salt solutions -BSS- and later PBS, until the early 50’s synthetic media, over chick embryo extract and Eagle’s Minimal Essential Medium (MEM) or its modification by Dulbecco (DMEM). Finally describing insulin mimicking growth factors.

Gram Scale Antibody Production Using CHO Cell Transient Gene Expression (TGE) via Flow Electroporation

MaxCyte flow electroporation provides a universal means of fully scalable, highly efficient CHO-based TGE for the rapid production of gram to multi-gram level s of antibodies without the need for specialized reagents, expression vectors, or engineered CHO cell lines. In this technical note, we present data demonstrating the reproducibility, scalability, and antibody production capabilities of MaxCyte electroporation. Secreted antibody titers routinely exceed 400 mg/L and can exceed 1gram/L following optimization, thereby enabling multi-gram antibody production from a single, CHO cell transfection. In addition, we present data showing the use of MaxCyte electroporation for the rapid generation of high-yield stable CHO cell lines to bridge the gap between early and late stage antibody development activities.

Has Your Current LIMS Implementation Been a Nightmare?

Because current traditional LIMS have not delivered on their promise, many organizations are still searching for solutions to optimize their laboratory operations. For those engaged in deploying traditional LIMS, frequent sleep-disturbing issues include poor flexibility and configurability, expensive and time-consuming customization, difficulties extending and upgrading systems, poor usability, lack of modular functionality, poor service/support, problems integrating with existing instrumentation/IT systems and extra time and resources required to meet critical qualification/compliance requirements. Learn how you can avoid the top 5 LIMS nightmares and rest easier with today’s next-generation process and execution-centric LIMS.

Production of CGMP-Grade Lentiviral Vectors

Lentiviral vectors are important tools for gene transfer because of their ability to transduce a number of cell types without the need for host cells to be dividing. As a result, investigators are using them as gene delivery vehicles in clinical applications. Since lentiviral vectors play such a vital role in gene therapy, they need to be manufactured at large scale for clinical trials. But, large-scale production using CGMP methods can present a number of challenges.

To address these challenges, the authors of this case study developed a process that allows for extensive scale-up in a safe, sterile, and reproducible system to produce clinical-grade lentivirus. This manufacturing process is very efficient and can be carried out using minimal staff (two operators for production of each subbatch). It provides the extensive scale-up capacity necessary to produce CGMP-grade lentivirus, and it has been used successfully in several completed and on-going phase 1–2 ex-vivo gene therapy clinical trials.

Meeting Increased Demands on Cell-Based Processes By Using Defined Media Supplements

As the demand for cell-derived products is rapidly increasing, there are huge pressures on the biomanufacturing industry’s production capacity requirements. To keep up with this demand, more focus is being put into media development strategies for optimizing output from cell culture systems. Serum-based media have traditionally been used to address the individual nutrient requirements of animal cells used in manufacturing protein products, but are now being gradually phased out due to inconsistencies and potential contamination risk.

These factors have created a demand for development of serum-free media that deliver optimal cell growth and productivity. This white paper looks at the challenges facing biopharmaceutical manufacturers today and the role of defined media supplements in addressing those.

Modeling Perfusion Processes in Biopharmaceutical Production

Biopharmaceutical manufacturing is mostly batch-based for a number of reasons: lower perceived contamination risks, batch-to-batch segregation, and historical legacy. Despite those reasons, perfusion is used by a number of biomanufacturers because it produces large product quantities using smaller bioreactors than would be possible with batch-based production.

Though perfusion-based production presents challenges that confound traditional models, it can create an environment in which many more factors can be influenced to directly optimize production. Read this case study to learn more about how perfusion can be used to create flexible, “just-in-time†facilities that respond to manufacturing conditions.

Integrity Systems: A Comprehensive Toolkit for Single-Use Solutions

Single-use solutions are in growing demand within the biopharmaceutical manufacturing industry. With a complete line of solutions — from mixing systems to ultra-clean packaging — ATMI LifeSciences is a leader in these technologies. In this educational webcast, Jared Hisle, Global Product Manager at ATMI LifeSciences, explores the full line of Integrity™ Systems single-use technologies, including:

• NewForm™ Sterilizable Packaging
• Integrity™ Liquid and Powder Vessels
• Integrity™ Mixers
• Integrity™ Bioreactors

ATMI maintains the world’s largest installed base of single-use mixing systems and offers the world’s only single-use platform including film extrusion. Join Hisle as he demonstrates the advantages of ATMI’s single-use solutions.