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Immunoglobulin G Glycosylation in Diseases

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Antibody Glycosylation

Part of the book series: Experientia Supplementum ((EXS,volume 112))

Abstract

Changes in immunoglobulin G (IgG) glycosylation pattern have been observed in a vast array of auto- and alloimmune, infectious, cardiometabolic, malignant, and other diseases. This chapter contains an updated catalog of over 140 studies within which IgG glycosylation analysis was performed in a disease setting. Since the composition of IgG glycans is known to modulate its effector functions, it is suggested that a changed IgG glycosylation pattern in patients might be involved in disease development and progression, representing a predisposition and/or a functional effector in disease pathology. In contrast to the glycopattern of bulk serum IgG, which likely relates to the systemic inflammatory background, the glycosylation profile of antigen-specific IgG probably plays a direct role in disease pathology in several infectious and allo- and autoimmune antibody-dependent diseases. Depending on the specifics of any given disease, IgG glycosylation read-out might therefore in the future be developed into a useful clinical biomarker or a supplementary to currently used biomarkers.

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Abbreviations

ACPA:

Anti-citrullinated protein antibody

ADCC:

Antibody-dependent cell-mediated cytotoxicity

Asn:

Asparagine

CH2:

Constant heavy 2

Fab:

Fragment antigen binding

Fc:

Fragment crystallizable

FcγRs:

Fcγ receptors

FNAIT:

Fetal and neonatal alloimmune thrombocytopenia

GlcNac:

N-acetylglucosamine

HFD:

High-fat diet

HDFN:

Haemolytic disease of the fetus and newborn

IgG:

Immunoglobulin G

IVIg:

Intravenous immunoglobulin

RA:

Rheumatoid arthritis

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Correspondence to Marija Pezer .

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Funding

This work was supported by the European Structural and Investment Funds CEKOM (Grant# KK.01.2.2.03.0006).

Conflict of Interest

MP is an employee of Genos Ltd.—a private company that specializes in high-throughput glycomic analysis and has several patents in the field, and of Genos Glycoscience Ltd.—a spin-off of Genos Ltd. that commercializes its scientific discoveries.

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This article does not contain any studies with human participants.

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© 2021 The Author(s), under exclusive license to Springer Nature Switzerland AG

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Pezer, M. (2021). Immunoglobulin G Glycosylation in Diseases. In: Pezer, M. (eds) Antibody Glycosylation. Experientia Supplementum, vol 112. Springer, Cham. https://doi.org/10.1007/978-3-030-76912-3_13

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