Using absorbance detection for hs-SV-AUC characterization of adeno-associated virus

Area of Science:

• Biophysical characterization
• Analytical chemistry
• Pharmaceutical sciences

Background:

• Adeno-associated virus (AAV) vectors are crucial for gene therapy.
• Accurate characterization of AAV drug products is essential for safety and efficacy.
• Traditional analytical methods may have limitations for high-throughput characterization.

Purpose of the Study:

• To demonstrate the utility of absorbance detection in high-speed sedimentation velocity analytical ultracentrifugation (hs-SV-AUC).
• To accurately characterize the size distribution of adeno-associated virus (AAV) drug products.
• To discuss the advantages and limitations of using absorbance detection in hs-SV-AUC for AAV analysis.

Main Methods:

• High-speed sedimentation velocity analytical ultracentrifugation (hs-SV-AUC).
• Absorbance detection integrated into the hs-SV-AUC instrument.
• Analysis of adeno-associated virus (AAV) drug product samples.

Main Results:

• Absorbance detection provides accurate size distribution data for AAV drug products.
• hs-SV-AUC with absorbance detection enables efficient characterization of AAV formulations.
• Specific advantages, such as speed and sensitivity, were identified.

Conclusions:

• Absorbance detection is a viable and accurate method for characterizing AAV drug product size distribution via hs-SV-AUC.
• The method facilitates robust quality control and development of AAV-based therapeutics.
• Understanding the method's limitations is key for optimal application in AAV analysis.