Evidence map›Paper›PMID 21964031›Full record

ArticleJournal of immunology (Baltimore, Md. : 1950)2011

Heligmosomoides polygyrus elicits a dominant nonprotective antibody response directed against restricted glycan and peptide epitopes.

James P Hewitson, Kara J Filbey, John R Grainger, Adam A Dowle, Mark Pearson, Janice Murray, Yvonne Harcus, Rick M Maizels

Open access · bronzeAbstract read
In one paragraph

Article in Journal of immunology (Baltimore, Md. : 1950), 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
4.7field-weighted citation impact, top 4% of its field
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

36 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Pathogens (Basel, Switzerland) · 2021
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Regulation of the host immune system by helminth parasites.The Journal of allergy and clinical immunology · 2016
    Review
  17. Article
  18. Article
  19. Article
  20. Article
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

8 authors at 3 institutions in 1 country.

James P HewitsonInstitute of Immunology and Infection Research, University of Edinburgh, Edinburgh EH9 3JT, United Kingdom.
Kara J Filbey
John R Grainger
Adam A Dowle
Mark Pearson
Janice Murray
Yvonne Harcus
Rick M Maizels
Centre for Immunity, Infection and Evolution · GBUniversity of Edinburgh · GBUniversity of York · GB

Funding

Medical Research CouncilWellcome Trust 090281
6 · The paper itself

Abstract

Heligmosomoides polygyrus is a widely used gastrointestinal helminth model of long-term chronic infection in mice, which has not been well-characterized at the antigenic level. We now identify the major targets of the murine primary Ab response as a subset of the secreted products in H. polygyrus excretory-secretory (HES) Ag. An immunodominant epitope is an O-linked glycan (named glycan A) carried on three highly expressed HES glycoproteins (venom allergen Ancylostoma-secreted protein-like [VAL]-1, -2, and -5), which stimulates only IgM Abs, is exposed on the adult worm surface, and is poorly represented in somatic parasite extracts. A second carbohydrate epitope (glycan B), present on both a non-protein high molecular mass component and a 65-kDa molecule, is widely distributed in adult somatic tissues. Whereas the high molecular mass component and 65-kDa molecules bear phosphorylcholine, the glycan B epitope itself is not phosphorylcholine. Class-switched IgG1 Abs are found to glycan B, but the dominant primary IgG1 response is to the polypeptides of VAL proteins, including also VAL-3 and VAL-4. Secondary Ab responses include the same specificities while also recognizing VAL-7. Although vaccination with HES conferred complete protection against challenge H. polygyrus infection, mAbs raised against each of the glycan epitopes and against VAL-1, VAL-2, and VAL-4 proteins were unable to do so, even though these specificities (with the exception of VAL-2) are also secreted by tissue-phase L4 larvae. The primary immune response in susceptible mice is, therefore, dominated by nonprotective Abs against a small subset of antigenic epitopes, raising the possibility that these act as decoy specificities that generate ineffective humoral immunity.

Indexed as

AnimalsAntibodies, HelminthAntibody SpecificityAntigens, HelminthEpitopesFemaleImmune SeraMiceMice, Inbred BALB CMice, Inbred C57BLNematospiroides dubiusPeptidesPolysaccharidesProtein ConformationStrongylida InfectionsAntibodies, HelminthAntigens, HelminthEpitopesImmune SeraPeptidesPolysaccharides

Identifiers

PMID21964031
PMCPMC4306209
OpenAlexW2110178493

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.