Evidence map›Paper›PMID 26456916›Full record

ReviewAdvanced drug delivery reviews2016

PEGylation as a strategy for improving nanoparticle-based drug and gene delivery.

Jung Soo Suk, Qingguo Xu, Namho Kim, Justin Hanes, Laura M Ensign

Abstract readReview
In one paragraph

Review in Advanced drug delivery reviews, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1,668 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
1,668citing papers in PubMed, 1 pooled it
–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

1,668 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
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  7. RNA therapeutics: current status and future directions.Signal transduction and targeted therapy · 2026
    Review
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1,608 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

5 authors.

Jung Soo SukThe Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States.
Qingguo XuThe Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States.
Namho KimThe Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, United States.
Justin HanesThe Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, United States; Departments of Biomedical Engineering, Environmental and Health Sciences, Oncology, Neurosurgery, and Pharmacology and Molecular Sciences, Johns Hopkins University, Baltimore, MD 21205 United States.
Laura M EnsignThe Center for Nanomedicine, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21231, United States; Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, United States. Electronic address: lensign@jhmi.edu.

Funding

Vaccine Response and Immunotherapeutics SWGP30AI094189 · NIAID · JOHNS HOPKINS UNIVERSITY · PI Richard E. Chaisson · 2012 to 2026
$67.0M
Tissue pharmacology imaging and modelingU19AI113127 · NIAID · JOHNS HOPKINS UNIVERSITY · PI MCGOWAN, IAN MICHAEL · 2014 to 2018
$20.7M
Immunotherapeutic Nanoparticle Delivery to Melanoma With MR-Guided Focused UltrasoundR01CA197111 · NCI · UNIVERSITY OF VIRGINIA · PI BULLOCK, TIMOTHY N, ENGELHARD, VICTOR H · 2015 to 2019
$2.6M
MRI-Guided miRNA Nanoparticle Delivery to Glioblastoma With Focused UltrasoundR01EB020147 · NIBIB · UNIVERSITY OF VIRGINIA · PI HANES, JUSTIN S., PRICE, RICHARD J. · 2015 to 2018
$2.4M
Biodegradable Mucus Penetrating DNA Nanoparticle for Gene Therapy of CFR01HL127413 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI HANES, JUSTIN S., SUK, JUNG SOO · 2015 to 2018
$1.6M
Mucus Penetrating Particles for Rectal MicrobicidesR33AI094519 · NIAID · JOHNS HOPKINS UNIVERSITY · PI CONE, RICHARD, HANES, JUSTIN S. · 2013 to 2015
$1.4M
NCI NIH HHS R01 CA197111NHLBI NIH HHS R01 HL127413NHLBI NIH HHS R01HL127413NIAID NIH HHS P30 AI094189NIAID NIH HHS P30AI094189NIAID NIH HHS R33 AI094519NIAID NIH HHS R33AI094519NIAID NIH HHS U19 AI113127NIAID NIH HHS U19AI133127NIBIB NIH HHS R01 EB020147NIBIB NIH HHS R01EB020147
6 · The paper itself

Abstract

Coating the surface of nanoparticles with polyethylene glycol (PEG), or "PEGylation", is a commonly used approach for improving the efficiency of drug and gene delivery to target cells and tissues. Building from the success of PEGylating proteins to improve systemic circulation time and decrease immunogenicity, the impact of PEG coatings on the fate of systemically administered nanoparticle formulations has, and continues to be, widely studied. PEG coatings on nanoparticles shield the surface from aggregation, opsonization, and phagocytosis, prolonging systemic circulation time. Here, we briefly describe the history of the development of PEGylated nanoparticle formulations for systemic administration, including how factors such as PEG molecular weight, PEG surface density, nanoparticle core properties, and repeated administration impact circulation time. A less frequently discussed topic, we then describe how PEG coatings on nanoparticles have also been utilized for overcoming various biological barriers to efficient drug and gene delivery associated with other modes of administration, ranging from gastrointestinal to ocular. Finally, we describe both methods for PEGylating nanoparticles and methods for characterizing PEG surface density, a key factor in the effectiveness of the PEG surface coating for improving drug and gene delivery.

Indexed as

Drug Delivery SystemsGene Transfer TechniquesAnimalsHumansNanoparticlesPolyethylene GlycolsSurface PropertiesPolyethylene GlycolsEnhanced permeability and retention (EPR) effectLiposomesMononuclear phagocyte system (MPS)Mucosal deliveryStealth coatings

Identifiers

PMID26456916
PMCPMC4798869

What OpenQuestion holds

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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.