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Confidence in Host Cell Protein (HCP) Coverage Assays with Differential Gel Approaches

Enzyme-linked immunosorbent assays (ELISAs) are critical to detecting and removing host cell proteins (HCPs), a primary source of impurities in biologics development. Scientists must validate HCP ELISAs to ensure patient safety and meet regulatory guidelines – but different coverage assays come with different challenges, limitations, and benefits. The US Pharmacopeia recommends 2D differential gel electrophoresis (DIGE) combined with Western blot or immunoaffinity approaches, and labs might not be able to gain the full benefits of DIGE without significantly altering current…

Why, Why, Why… ELISA? A Look at the Benchmark HCP Assay

Host cell proteins (HCPs) are a primary source of impurity in biologics manufacturing. When present in drug formulations, HCPs can reduce efficacy, introduce toxicity, and increase risk of long-term immunogenicity. Understanding HCP profiles and integrating effective removal strategies are critical when developing a new biological drug, both for ensuring patient safety and fulfilling regulatory guidelines. HCP populations can be complex and structurally diverse, and most changes in upstream culture conditions affect HCP concentrations and control strategies. Accurate and reliable HCP…

Cyclic Cell Harvest with CONTIBAC® SU Filters

As the Biotech industry is moving towards single-use components, larger batch volumes and higher cell concentrations, conventional cell harvest technologies reach their limit. Depth filters, for instance, can only cope with the increasing demands by stacking more filter elements and therefore increasing the footprint and their economic burden. Hence, innovative solutions are needed to keep pushing the boundaries of the biologics production. The CONTIBAC® SU filter of DrM excels where existing technologies crumble. Unlike in any competing technology, the filtration…

Why Characterizing Protein Stability Matters For Drug Development

Characterizing a protein’s stability provides key insights into the expression, signaling, and regulatory roles of a molecule. This is necessary for numerous applications from understanding the molecular basis for certain diseases to ensuring more effective drug development. Ultimately, the stability of a protein is closely tied to its functional activity. Whether you’re just starting to learn about characterizing protein stability or you’re looking for a refresher, this guide has some helpful tips to answer why it’s important, what technologies are…

New Features for Single-Use Pumps in Biopharmaceutical Manufacturing

Everybody has heard the axiom “time is money,” which highlights the belief that time is a valuable resource; therefore, it is better to do things as quickly as possible in order to make more money. This concept perfectly describes the current atmosphere within the biopharmaceutical industry, where drug manufacturers are struggling to overcome speed-to-market challenges in order to reap the financial benefits of an optimized patent window. In order to bring their products to market, most biopharmaceutical-manufacturing systems employ a…

Optimizing Unit Operations In Biopharmaceutical Manufacturing

There are many critical material-handling challenges regarding flow rates, pressure levels and the prevention of shear in the chromatography, virus filtration and TFF processes that are used in the manufacture of biopharmaceuticals. In order for these unique operations to be implemented successfully while handling fluids that can be sensitive, delicate and expensive, the operator must be aware of their specific operating characteristics and choose a pumping technology that can meet the strict demands for successful operation. While lobe and peristaltic…

Removal of Endotoxins – From Bench to Process Scale

Endotoxins or lipopolysaccharides (LPS) are highly toxic components of the cell wall of Gram-negative bacteria, which are often present in significant amounts in bacterial cell expression systems such as E.coli. A number of methods have been adopted for the removal of endotoxin based on adsorption, in particular ion exchange chromatography. Although downstream processing can significantly reduce endotoxin levels in the product, efficient and cost effective removal of residual endotoxin from biopharmaceutical preparations remains a challenge. Prometic Bioseparations have developed an…

We Meet Your Single Use Process Monitoring Requirements

Innovation is at the core of all pharmaceutical, biopharm and bioprocess applications. With extensive experience in the biopharmaceutical industry — and particular expertise in single-use bio-pharmaceutical equipment — PendoTECH delivers a line of pressure sensors, control systems and software for measuring, monitoring and data collection in bioprocess applications and other areas where the products provide a unique process solution. Committed to meeting the specialized needs of life-science laboratories and bio-pharmaceutical manufacturers, PendoTECH technical consultants review your company’s applications in the…

Single-Use Automation: Unlocking the True Potential of Single-Use Technology

When single-use technology first arrived on the scene in the late nineties, the processes that it was applied to were relatively simple and low risk. These included simple filtration and storage applications of buffers and cleaning solutions. With these filtration steps typically involving lower value, non-blocking solutions of easy to dissolve salts, automation would have been seen as an unnecessary over- complication. It was thought sufficient to have an operator watch the process to make sure nothing became disconnected, a…