Evidence map›Paper›PMID 35464485›Full record

ReviewFrontiers in immunology2022

Sialylation as an Important Regulator of Antibody Function.

Ravi Vattepu, Sunny Lyn Sneed, Robert M Anthony

Abstract readReview
In one paragraph

Review in Frontiers in immunology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

67 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Article
  5. Article
  6. Article
  7. The glycan fingerprint in immune thrombocytopenia.Research and practice in thrombosis and haemostasis · 2026
    Article
  8. Immunoglobulin G in aging and cancer.Frontiers in immunology · 2026
    Review
  9. Review
  10. Review
  11. Glycan Structures of Human Immunoglobulins and Their Roles.Advances in experimental medicine and biology · 2026
    Review
  12. Article
  13. Article
  14. Endothelial cells sialylate IgG within the FcRn-mediated recycling pathway.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Review
  20. Article

7 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Ravi VattepuCenter for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States.
Sunny Lyn SneedCenter for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States.
Robert M AnthonyCenter for Immunology and Inflammatory Diseases, Division of Rheumatology, Allergy and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, United States.

Funding

Examining IgG4 sialylation as a gain of function post-translation modification in IgG4-related diseasesR01AI153441 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI ANTHONY, ROBERT MCCULLOUGH, RAVETCH, JEFFREY VICTOR · 2020 to 2024
$4.1M
Harnessing the anti-inflammatory activity of extracellular sialylation of IgG.R01AI155662 · NIAID · MASSACHUSETTS GENERAL HOSPITAL · PI ANTHONY, ROBERT MCCULLOUGH · 2021 to 2025
$2.7M
NIAID NIH HHS R01 AI153441NIAID NIH HHS R01 AI155662
6 · The paper itself

Abstract

Antibodies play a critical role in linking the adaptive immune response to the innate immune system. In humans, antibodies are categorized into five classes, IgG, IgM, IgA, IgE, and IgD, based on constant region sequence, structure, and tropism. In serum, IgG is the most abundant antibody, comprising 75% of antibodies in circulation, followed by IgA at 15%, IgM at 10%, and IgD and IgE are the least abundant. All human antibody classes are post-translationally modified by sugars. The resulting glycans take on many divergent structures and can be attached in an N-linked or O-linked manner, and are distinct by antibody class, and by position on each antibody. Many of these glycan structures on antibodies are capped by sialic acid. It is well established that the composition of the N-linked glycans on IgG exert a profound influence on its effector functions. However, recent studies have described the influence of glycans, particularly sialic acid for other antibody classes. Here, we discuss the role of glycosylation, with a focus on terminal sialylation, in the biology and function across all antibody classes. Sialylation has been shown to influence not only IgG, but IgE, IgM, and IgA biology, making it an important and unappreciated regulator of antibody function.

Indexed as

N-Acetylneuraminic AcidPolysaccharidesHumansImmunoglobulin AImmunoglobulin DImmunoglobulin EImmunoglobulin GImmunoglobulin MImmunoglobulin AImmunoglobulin DImmunoglobulin EImmunoglobulin GImmunoglobulin MN-Acetylneuraminic AcidPolysaccharidesantibodyglycosylationImmunoglobulinsin vitro glycoengineeringin vivo glyco engineeringsialic acidsialylation

Identifiers

PMID35464485
PMCPMC9021442

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.