Unique repertoire of anti-carbohydrate antibodies in individual human serum.

Luetscher, Ralph N D; McKitrick, Tanya R; Gao, Chao; Mehta, Akul Y; McQuillan, Alyssa M; Kardish, Robert; Frias Boligan, Kayluz; Song, Xuezheng; Lu, Lenette; Heimburg-Molinaro, Jamie; von Gunten, Stephan; Alter, Galit; Cummings, Richard D (2020). Unique repertoire of anti-carbohydrate antibodies in individual human serum. Scientific reports, 10(1), p. 15436. Springer Nature 10.1038/s41598-020-71967-y

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Humoral immunity to pathogens and other environmental challenges is paramount to maintain normal health, and individuals lacking or unable to make antibodies are at risk. Recent studies indicate that many human protective antibodies are against carbohydrate antigens; however, little is known about repertoires and individual variation of anti-carbohydrate antibodies in healthy individuals. Here we analyzed anti-carbohydrate antibody repertoires (ACARs) of 105 healthy individual adult donors, aged 20-60+ from different ethnic backgrounds to explore variations in antibodies, as defined by binding to glycan microarrays and by affinity purification. Using microarrays that contained > 1,000 glycans, including antigens from animal cells and microbes, we profiled the IgG and IgM ACARs from all donors. Each donor expressed many ACAs, but had a relatively unique ACAR, which included unanticipated antibodies to carbohydrate antigens not well studied, such as chitin oligosaccharides, Forssman-related antigens, globo-type antigens, and bacterial glycans. We also saw some expected antibodies to ABO(H) blood group and α-Gal-type antigens, although these also varied among individuals. Analysis suggests differences in ACARs are associated with ethnicity and age. Thus, each individual ACAR is relatively unique, suggesting that individualized information could be useful in precision medicine for predicting and monitoring immune health and resistance to disease.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Pre-clinic Human Medicine > Institute of Pharmacology

UniBE Contributor:

Frias Boligan, Kayluz and von Gunten, Stephan

Subjects:

600 Technology > 610 Medicine & health

ISSN:

2045-2322

Publisher:

Springer Nature

Language:

English

Submitter:

Celine Joray

Date Deposited:

25 Nov 2020 15:40

Last Modified:

20 Mar 2021 01:59

Publisher DOI:

10.1038/s41598-020-71967-y

PubMed ID:

32963315

BORIS DOI:

10.7892/boris.148236

URI:

https://boris.unibe.ch/id/eprint/148236

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