Evidence map›Paper›PMID 34583992›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Glycocalyx crowding with mucin mimetics strengthens binding of soluble and virus-associated lectins to host cell glycan receptors.

Daniel J Honigfort, Meghan O Altman, Pascal Gagneux, Kamil Godula

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.0field-weighted citation impact, top 12% 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

21 citing papers in PubMed, 32 citations in OpenAlex.

  1. Mucins and Respiratory Virus Infection.Annual review of virology · 2026
    Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Membrane-Inserting α‑Lipid Polymers: Understanding Lipid Membrane Insertion and Effect on Membrane Fluidity.Chemistry of materials : a publication of the American Chemical Society · 2025
    Article
  8. Article
  9. ThePolymers · 2024
    Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Review
  18. Review
  19. Review
  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

4 authors at 1 institution in 1 country.

Daniel J HonigfortDepartment of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA 92093-0358.
Meghan O AltmanDepartment of Pathology, University of California San Diego, La Jolla, CA 92093-0687.
Pascal GagneuxDepartment of Pathology, University of California San Diego, La Jolla, CA 92093-0687.ORCID 0000-0001-9599-9838
Kamil GodulaDepartment of Chemistry and Biochemistry, University of California San Diego, La Jolla, CA 92093-0358; kgodula@ucsd.edu.
University of California San Diego · US

Funding

U of Calif, San Diego Neuroscience Microscopy ImagingP30NS047101 · NINDS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GLEESON, JOSEPH G, ZHENG, BINHAI · 2003 to 2022
$9.0M
In vivo glycan engineering at the cell-matrix interface to control stem cell fateDP2HD087954 · NICHD · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GODULA, KAMIL · 2015 to 2015
$2.3M
Glycan array for phenotype-driven capture and genotyping of viruses in primary isolatesR21AI129894 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GAGNEUX, PASCAL, GODULA, KAMIL · 2016 to 2017
$601k
NIAID NIH HHS R21 AI129894NICHD NIH HHS DP2 HD087954NINDS NIH HHS P30 NS047101
6 · The paper itself

Abstract

Membrane-associated mucins protect epithelial cell surfaces against pathogenic threats by serving as nonproductive decoys that capture infectious agents and clear them from the cell surface and by erecting a physical barrier that restricts their access to target receptors on host cells. However, the mechanisms through which mucins function are still poorly defined because of a limited repertoire of tools available for tailoring their structure and composition in living cells with molecular precision. Using synthetic glycopolymer mimetics of mucins, we modeled the mucosal glycocalyx on red blood cells (RBCs) and evaluated its influence on lectin (SNA) and virus (H1N1) adhesion to endogenous sialic acid receptors. The glycocalyx inhibited the rate of SNA and H1N1 adhesion in a size- and density-dependent manner, consistent with the current view of mucins as providing a protective shield against pathogens. Counterintuitively, increasing the density of the mucin mimetics enhanced the retention of bound lectins and viruses. Careful characterization of SNA behavior at the RBC surface using a range of biophysical and imaging techniques revealed lectin-induced crowding and reorganization of the glycocalyx with concomitant enhancement in lectin clustering, presumably through the formation of a more extensive glycan receptor patch at the cell membrane. Our findings indicate that glycan-targeting pathogens may exploit the biophysical and biomechanical properties of mucins to overcome the mucosal glycocalyx barrier.

Indexed as

BiomimeticsCell MembraneEpithelial CellsErythrocytesGlycocalyxHumansInfluenza A Virus, H1N1 SubtypeLectinsMucinsMucous MembranePolysaccharidesReceptors, Cell SurfaceLectinsMucinsPolysaccharidesReceptors, Cell Surfacebiophysicsglycocalyxinfluenza Alectinsmucin

Identifiers

PMID34583992
PMCPMC8501829
OpenAlexW3201750712

What OpenQuestion holds

Textmetadata
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.