High-throughput N-glycan screening method for therapeutic antibodies using a microchip-based DNA analyzer: a promising methodology for monitoring monoclonal antibody N-glycosylation

Mitsuhiro Kinoshita, Kazuki Nakajima, Sachio Yamamoto, Shigeo Suzuki

Research output: Contribution to journalArticlepeer-review

Abstract

N-Glycosylation of therapeutic antibodies is a critical quality attribute (CQA), and the micro-heterogeneity affects the biological and physicochemical properties of antibodies. Therefore, the profiling of N-glycans on antibodies is essential for controlling the manufacturing process and ensuring the efficacy and safety of the therapeutic antibodies. To monitor N-glycosylation in recombinant proteins, a high-throughput (HTP) methodology for glycan analysis is required to handle bulk samples in various stages of the manufacturing process. In this study, we focused on the HTP methodology for N-glycan analysis using a commercial microchip electrophoresis-based DNA analyzer and demonstrated the feasibility of the workflow consisting of sample preparation and electrophoretic separation. Even if there is a demand to analyze up to 96 samples, the present workflow can be completed in a day without expensive instruments and reagent kits for sample preparation, and it will be a promising methodology for cost-effective and facile HTP N-glycosylation analysis while optimizing the manufacturing process and development for therapeutic antibodies. Graphical abstract: [Figure not available: see fulltext.]

Original languageEnglish
JournalAnalytical and Bioanalytical Chemistry
DOIs
Publication statusAccepted/In press - 2021

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Biochemistry

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