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Updated: Feb 10, 2026

Production of Monoclonal Antibodies Targeting Aminopeptidase N in the Porcine Intestinal Mucosal Epithelium
Published on: May 18, 2021
What sample preparation should be chosen for targeted MS monoclonal antibody quantification in human serum?
Jérôme Vialaret1, Sophie Broutin2, Célia Pugnier1
1University of Montpellier, LBPC- IRMB, CHU Montpellier, 80 rue Augustin Fliche, Montpellier, France.
Aim:
Monoclonal antibody-based treatment of cancer has been established as one of the most successful therapeutic strategies.
Materials & Methods:
In this work, we developed a workflow based on an automated protein-A capture and LC-MS/MS analysis to quantify bevacizumab on patient serum during treatment. This analytical approach was fully validated and compared with a commercially available Monoclonal antibody-based treatment preparation (nanosurface and molecular-orientation limited kit).
Results:
The analytical comparison of the two preparative workflows based on protein-A capture gave similar results with a better lower limit of quantification for the nanosurface and molecular-orientation limited kit (0.26986 vs 1.9565 μg/ml).
Conclusion:
LC-MS/MS has clear advantages compared with ELISA when considering method development time, multiplexing capacities and absolute quantification with internal standardization.
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