Related Experiment Video
Updated: Aug 11, 2026

07:44
High-throughput Purification of Affinity-tagged Recombinant Proteins
Published on: August 26, 2012
Monitoring impurities in biopharmaceuticals produced by recombinant technology
Summary
Regulatory agencies worldwide mandate strict impurity control for biotherapeutics. This study details product- and process-related impurities and methods for their monitoring and control to ensure drug safety and efficacy.
Area of Science:
- Biopharmaceutical Manufacturing
- Analytical Chemistry
- Regulatory Science
Background:
- Recombinant technology and biotherapeutic production present unique challenges for impurity control.
- Impurities and contaminants can significantly impact product quality, efficacy, and patient safety, even at trace levels.
Purpose of the Study:
- To provide a comprehensive understanding of potential product- and process-related impurities in biotherapeutics.
- To describe current and emerging methodologies for controlling and monitoring these critical impurities.
Main Methods:
- Literature review and synthesis of existing knowledge on biopharmaceutical impurities.
- Analysis of regulatory guidelines concerning impurity characterization and control.
- Overview of analytical techniques for impurity detection and quantification.
Main Results:
- Identification of diverse categories of product- and process-related impurities.
- Discussion of the impact of impurities on biotherapeutic safety and efficacy.
- Presentation of established and novel strategies for impurity management.
Conclusions:
- Effective control and monitoring of impurities are essential for biopharmaceutical quality and patient safety.
- A thorough understanding of impurity profiles guides the development of robust manufacturing processes.
- Continuous advancement in analytical methodologies is crucial for meeting evolving regulatory expectations.
More Related Videos
Related Concept Videos
Recombinant DNA
Overview
Pharmaceutical Alternatives: Excipients and Impurities-Related Therapeutic Nonequivalence
Pharmaceutical products contain more than just the active drug; they also contain various excipients such as binders, solubilizers, stabilizers, preservatives, and other elements. In some cases, impurities or contaminants might be present. Traditionally, quality control in pharmaceuticals has primarily focused on the analysis of the active drug, often overlooking the impact of these additional components. The recent issue with heparin contamination by over-sulfated chondroitin sulfate, a...
Bioreactor Controls-III
Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
Upstream Processing
Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
Production of Pharmaceuticals
Industrial insulin production uses genetically engineered E. coli expressing a proinsulin gene controlled by a tryptophan promoter and containing a methionine linker for later cleavage. The cells also carry ampicillin resistance for selective growth. Seed cultures are stored at −80 °C and production begins by thawing a small amount to inoculate starter cultures, which are progressively scaled to a 50,000-L bioreactor. In the bioreactor, E. coli grow in nutrient-rich media under sterile, tightly...
Downstream Processing
Downstream processing begins once fermentation is complete and involves a series of steps to recover and purify products such as acids, vitamins, antibiotics, or proteins.Cell HarvestingFor example, for intracellular protein-based products, the first step is harvesting the cells. This is typically achieved using centrifugation or filtration to separate the cells from the liquid phase.Cell Disruption for Intracellular ProductsIf the target product is intracellular, the harvested cells must be...

