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IgG N-glycan Signatures as Potential Diagnostic and Prognostic Biomarkers
Journal article   Open access   Peer reviewed

IgG N-glycan Signatures as Potential Diagnostic and Prognostic Biomarkers

Benjamin S Haslund-Gourley, Brian Wigdahl and Mary Ann Comunale
Diagnostics (Basel), v 13(6), 1016
07 Mar 2023
PMID: 36980324
url
https://doi.org/10.3390/diagnostics13061016View
Published, Version of Record (VoR)CC BY V4.0 Open

Abstract

prognostic immunoglobulin G IgG glycopeptide glycosylation N-glycan diagnostic
IgG N-glycans are an emerging source of disease-specific biomarkers. Over the last decade, the continued development of glycomic databases and the evolution of glyco-analytic methods have resulted in increased throughput, resolution, and sensitivity. IgG N-glycans promote adaptive immune responses through antibody-dependent cellular cytotoxicity (ADCC) and complement activation to combat infection or cancer and promote autoimmunity. In addition to the functional assays, researchers are examining the ability of protein-specific glycosylation to serve as biomarkers of disease. This literature review demonstrates that IgG N-glycans can discriminate between healthy controls, autoimmune disease, infectious disease, and cancer with high sensitivity. The literature also indicates that the IgG glycosylation patterns vary across disease state, thereby supporting their role as specific biomarkers. In addition, IgG N-glycans can be collected longitudinally from patients to track treatment responses or predict disease reoccurrence. This review focuses on IgG N-glycan profiles applied as diagnostics, cohort discriminators, and prognostics. Recent successes, remaining challenges, and upcoming approaches are critically discussed.

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Web of Science research areas
Immunology
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