Efficient Downstream Purification of Viral Vectors

This document is a technical report that outlines the challenges and methodologies associated with the purification of lentiviral vectors (LVVs) at large scales. It describes the need for rapid purification processes that maintain the stability and recovery of infectious LVVs while effectively clearing host cell proteins (HCPs). The report emphasizes the significance of high-throughput screening of nonaffinity methods to develop scalable purification processes for vaccine production. It details the findings of Ghosh et al. (2022), which identified optimal mobile phase conditions and the use of weak anion exchanger resins for effective purification. The study presents results demonstrating that Macro-Prep High Q Resin achieved over 50% LVV recovery and significant HCP clearance. The report includes specific metrics such as recovery percentages and infectivity rates, providing a comprehensive view of the optimized purification process. Overall, the document serves as a resource for understanding advanced purification techniques for viral vectors.