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Updated: Oct 14, 2025

Rapid Antibody Glycoengineering in Chinese Hamster Ovary Cells
Published on: June 2, 2022
Immunoglobulin Glycosylation - An Unexploited Potential for Immunomodulatory Strategies in Farm Animals
Kristina Zlatina1, Sebastian P Galuska1
1Institute of Reproductive Biology, Research Institute for Farm Animal Biology (FBN), Dummerstorf, Germany.
Abstract:
The function of antibodies, namely the identification and neutralization of pathogens, is mediated by their antigen binding site (Fab). In contrast, the subsequent signal transduction for activation of the immune system is mediated by the fragment crystallizable (Fc) region, which interacts with receptors or other components of the immune system, such as the complement system. This aspect of binding and interaction is more precise, readjusted by covalently attached glycan structures close to the hinge region of immunoglobulins (Ig). This fine-tuning of Ig and its actual state of knowledge is the topic of this review. It describes the function of glycosylation at Ig in general and the associated changes due to corresponding glycan structures. We discuss the functionality of IgG glycosylation during different physiological statuses, like aging, lactation and pathophysiological processes. Further, we point out what is known to date about Ig glycosylation in farm animals and how new achievements in vaccination may contribute to improved animal welfare.
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