Evidence map›Paper›PMID 36703348›Full record

ArticleCommunications chemistry2020

Structure of an anti-PEG antibody reveals an open ring that captures highly flexible PEG polymers.

Justin T Huckaby, Tim M Jacobs, Zhongbo Li, Robert J Perna, Anting Wang, Nathan I Nicely, Samuel K Lai

Open access · goldAbstract read
In one paragraph

Article in Communications chemistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
4.8field-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

31 citing papers in PubMed, 69 citations in OpenAlex.

  1. Article
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  7. Overcoming PEG Antigenicity: Statistical PEG Isomers Reduce Antibody Binding.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  8. Review
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  12. Article
  13. PEG-mCherry interactions beyond classical macromolecular crowding.Protein science : a publication of the Protein Society · 2025
    Article
  14. Article
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  17. Review
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  19. Targeted nanotherapy for kidney diseases: a comprehensive review.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2023
    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

7 authors at 1 institution in 1 country.

Justin T HuckabyUNC/NCSU Joint Department of Biomedical Engineering, School of Medicine, University of North Carolina-Chapel Hill, Chapel Hill, NC, 27599, USA.ORCID http://orcid.org/0000-0002-3585-8635
Tim M JacobsDivision of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina-Chapel Hill, Chapel Hill, NC, 27599, USA.
Zhongbo LiDivision of Pharmacoengineering and Molecular Pharmaceutics, Eshelman School of Pharmacy, University of North Carolina-Chapel Hill, Chapel Hill, NC, 27599, USA.
Robert J PernaDepartment of Psychology and Neuroscience, College of Arts and Sciences, University of North Carolina-Chapel Hill, Chapel Hill, NC, 27599, USA.
Anting WangUNC/NCSU Joint Department of Biomedical Engineering, School of Medicine, University of North Carolina-Chapel Hill, Chapel Hill, NC, 27599, USA.
Nathan I NicelyDepartment of Pharmacology, School of Medicine, University of North Carolina-Chapel Hill, Chapel Hill, NC, 27599, USA.
Samuel K LaiUNC/NCSU Joint Department of Biomedical Engineering, School of Medicine, University of North Carolina-Chapel Hill, Chapel Hill, NC, 27599, USA. lai@unc.edu.ORCID http://orcid.org/0000-0003-4721-528X
University of North Carolina at Chapel Hill · US

Funding

Virology Research Program (Program 4)P30CA016086 · NCI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Deborah F. Tate · 1985 to 2026
$201.5M
Overcoming anti-PEG immunity to restore prolonged circulation and efficacy of PEGylated therapeuticsR01HL141934 · NHLBI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI LAI, SAMUEL, ZAMBONI, WILLIAM C · 2018 to 2021
$2.7M
Engineering Temperate Bacteriophages for Induced Secretion of Proteins and Peptides by Oral Streptococcus MitisF32DE026683 · NIDCR · UNIV OF NORTH CAROLINA CHAPEL HILL · PI JACOBS, TIMOTHY MICHAEL · 2016 to 2017
$96k
NCI NIH HHS P30 CA016086NHLBI NIH HHS R01 HL141934NIDCR NIH HHS F32 DE026683
6 · The paper itself

Abstract

Polyethylene glycol (PEG) is a polymer routinely used to modify biologics and nanoparticles to prolong blood circulation and reduce immunogenicity of the underlying therapeutic. However, several PEGylated therapeutics induce the development of anti-PEG antibodies (APA), leading to reduced efficacy and increased adverse events. Given the highly flexible structure of PEG, how APA specifically bind PEG remains poorly understood. Here, we report a crystal structure illustrating the structural properties and conformation of the APA 6-3 Fab bound to the backbone of PEG. The structure reveals an open ring-like sub-structure in the Fab paratope, whereby PEG backbone is captured and then stabilized via Van der Waals interactions along the interior and exterior of the ring paratope surface. Our finding illustrates a strategy by which antibodies can bind highly flexible repeated structures that lack fixed conformations, such as polymers. This also substantially advances our understanding of the humoral immune response generated against PEG.

Identifiers

PMID36703348
PMCPMC9814744
OpenAlexW3083811806

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.