The Dish’s Weekly Biotechnology News Wrap Up – September 27, 2019
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In Case You Missed It, Recent Articles on Cell Culture Dish and Downstream Column:
Raw Material Quality – Identifying and Mitigating Variation
In this podcast, we interviewed Cory Card, Principal Scientist Life Sciences, GE Healthcare about raw material quality, its impact on cell culture and technologies to identify and mitigate raw material variation…Ask the Expert – Laboratory based therapeutic and diagnostic marker protein concentration through centrifugal and crossflow ultrafiltration
Efficacy of ultrafiltration processes can be very application dependent and thus may raise technical questions in process planning. To answer these questions, this week we are excited to have Rik McRae, Technical Manager for Operations, Sartorius Stedim Lab, Ltd. as our expert. Rick has over 20 years of experience in product and application research and development, production engineering and technical guidance and is currently a member of the Sartorius lab ultrafiltration team. Rik is a subject matter expert for technical support and application knowledge, with strong expertise in therapeutic protein, drug delivery nanoparticle, and diagnostic marker concentration applications, with centrifugal, pressure driven and lab scale tangential flow filtration systems…Cool Tool – Vivaflow Crossflow Cassettes provide plug and play target molecule concentration systems that are scalable for a wide range of sample volumes
Ultrafiltration is an important function in many labs. While there are many ways to conduct concentration and filtration, it is critical that you select the appropriate method for target recovery and sample volume, while still considering speed and efficiency. Sartorius has launched its Vivaflow Crossflow Cassettes with these requirements in mind. With three products specifically designed to meet different customer requirements, they provide a simple to use, plug and play system for concentrating a wide range of sample types, over volumes from 0.1 liter to 5 liters, with high reliability and consistency of results…Improved Protein yields in CHO and HEK293 cells using a dedicated transfection reagent: FectoPRO®
Transient gene expression (TGE) is commonly used for medium scale production of recombinant proteins and antibodies. This approach allows generation of sufficient protein amounts without an investment in production of stable cell lines prior to “proof of concept” studies or tools validation. The speed and flexibility of the process has enabled TGE to be widely adopted in bioproduction for early discovery, research applications and process development…Antibody Drug Conjugate (ADC) Development and Manufacturing Challenges and Solutions
In this podcast, we interviewed Dr. J.J. Luo, Executive Director and Dr. Lily Yin, Head of Biologics Conjugation Development, at WuXi Biologics about the state of the ADC marketplace and the challenges in developing antibody drug conjugates. We then dove into reasons behind why they built a dedicated manufacturing facility for ADCs and other bioconjugates and how a single-source development platform can benefit bioconjugate drug development efforts…
Supplier Qualification and Material Selection – A Case Study of Biopharmaceutical Resin Manufacture
To ensure a safe and continuous supply of life-saving biopharmaceuticals, raw materials for biomanufacturing must be selected carefully and suppliers evaluated with much scrutiny. Several instances of drug shortages as the result of either a raw material shortage or contamination reinforce the need for thorough evaluation. Ensuring a reliable supply and the quality of the materials selected is of paramount importance…Bioburden Control Strategies for Continuous Downstream Processing
Implementing continuous bioprocessing for biomanufacturing has been increasing in interest. As a result, questions have arisen about the implementation of this strategy for downstream processes. Of particular interest is maintaining a high degree of bioburden control in continuous downstream process. While bioburden control strategies for continuous processing focus on prevention, not unlike batch processing, many want to know if there are specific strategies that should be implemented with continuous bioprocessing that are different than those used in batch processing…Cool Tool – Innovative sorbents enable a robust and streamlined protein purification process
Monoclonal antibodies have long been purified using a platform approach. This platform mainly consists of three chromatography steps. These include a Protein A based affinity chromatography step followed by polishing steps. The purpose of the affinity chromatography is to capture the mAb, while the polishing steps remove any remaining impurities, such as residual DNA, host cell proteins, viruses and aggregates. There are options in the selected polishing steps, but often they involve cation exchange or hydrophobic interaction. Increasingly membrane chromatography is being used as a polishing step to remove any remaining contaminants…Optimizing mAb Purification with Highly Selective Mixed-mode Cation Exchange Sorbent
In today’s market, mAbs are produced for several therapeutic applications, yet they are not a homogeneous family of products. Each mAb is unique, based on its isoelectric point, hydrophobicity and ability to aggregate; the contaminant HCP content is also process-dependent. As drug manufacturers seek to produce mAbs for various application, they are also looking to streamline processes for efficiency and quality…Scalable Protein A Chromatography for High-Throughput Process Development
Process development is a critical part of biomanufacturing, but it can be very time and resource intensive. With recent industry initiatives around speed to market, process development is an area that could really benefit from high throughput solutions. One high-throughput process development tool for chromatography is the use of 96-well plates. These plate platforms permit automated screening of large numbers of conditions very efficiently and use only a small amount of material for testing. This platform is great for screening but requires bridging experiments to translate results to process scale. In addition, automating the 96-well process requires investment in liquid handling equipment in order to reach the full potential of the platform…Trainings:
Eppendorf Bioprocess Workshop
Implementation of an Affordable and Scalable Manufacturing Strategy for Gene Therapy Upstream bioprocess development is an integral part of gene therapy product development. Cell culture bioprocess development is usually carried out at small working volumes. This helps save time and resources, because several experiments can be conducted in parallel, costs for media are kept low, and relatively little laboratory space is required. When more material is needed for characterization, trial runs, and finally for commercialization, biopharmaceutical companies transition the process to bench scale and then up to pilot or production scale. In this presentation, we will present bioprocess solutions for parallel process development at small scale. Furthermore, we will discuss bioreactor scalability and address several scaling approaches. A Beginner’s Guide to Bioprocess Modes – Batch, Fed-Batch, and Continuous Processing We will discuss the differences between batch, fed-batch, and continuous fermentation and how these influence culture growth. As an example, we look at E. coli fermentation processes at bench scale. We track the biomass and nutrient concentrations during batch, fed-batch, and continuous fermentation runs. We explain different methods to analyze the process, including determination of biomass, growth rate, productivity, yield, and analysis of process costs. The comparisons can help bioprocess engineers to select the most appropriate method to meet their needs. In our examples we studied E. coli fermentation at bench scale. The principles may also apply to bioprocesses using other microbes or mammalian cells, at both smaller and larger scales. La Jolla, CA – Wednesday, October 16, 2019 – Click here for information on the La Jolla workshop BTEC, NC – Wednesday, November 6, 2019 – Click here for information on North Carolina workshopConferences:
World ADC San Diego
With the next ADC approval in touching distance, the ADC field is on the edge of their seats to hear when the next exciting announcement will be. With new collaborations and important results constantly being shared, it’s safe to say the field is ever-evolving. However, despite the excitement we continue to face roadblocks with off-target toxicity, ensuring a robust supply chain and maximizing the clinical therapeutic window of an ADCs. Designed with Pfizer, Seattle Genetics, Genentech and ImmunoGen this leading…
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