Native LC-MS for capturing quality attributes of biopharmaceuticals on the intact protein level.
Current opinion in biotechnology(2021)
Abstract
Intact protein analysis by means of mass spectrometry has become a well-established method for the characterization of biotherapeutics. However, due to the highly complex nature of recombinant proteins, prior chromatographic separation is inevitable for a comprehensive analysis. In recent years, progress in coupling a variety of liquid chromatography-based native separation modes such as size exclusion, ion exchange and hydrophobic interaction chromatography to mass spectrometry (native LC-MS) has been reported, therefore allowing for rapid assessment of molecular mass and deep characterization of the heterogeneity of complex, recombinantly produced therapeutic proteins. Here we provide a comprehensive overview of recent advances in the development and application of native LC-MS for biopharmaceutical characterization.
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