Evidence map›Paper›PMID 31753403›Full record

ArticleMaterials science & engineering. C, Materials for biological applications2020

Protein-loaded soluble and nanoparticulate formulations of ionic polyphosphazenes and their interactions on molecular and cellular levels.

Alexander K Andrianov, Alexander Marin, Joseph Deng, Thomas R Fuerst

Open access · greenAbstract read
In one paragraph

Article in Materials science & engineering. C, Materials for biological applications, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.8field-weighted citation impact, top 31% 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

11 citing papers in PubMed, 17 citations in OpenAlex.

  1. Polyphosphazene-Based Nanotherapeutics.Journal of functional biomaterials · 2025
    Review
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  11. Polyphosphazene immunoadjuvants: Historical perspective and recent advances.Journal of controlled release : official journal of the Controlled Release Society · 2021
    Review
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 2 institutions in 1 country.

Alexander K AndrianovInstitute for Bioscience and Biotechnology Research, University of Maryland, 9600 Gudelsky Dr., Rockville, MD 20850, United States. Electronic address: aandrianov@umd.edu.
Alexander MarinInstitute for Bioscience and Biotechnology Research, University of Maryland, 9600 Gudelsky Dr., Rockville, MD 20850, United States.
Joseph DengDepartment of Biology, College of Computer, Mathematical, and Natural Sciences, 1210 Biology - Psychology Building, 4094 Campus Drive, College Park, MD 20742, United States.
Thomas R FuerstInstitute for Bioscience and Biotechnology Research, University of Maryland, 9600 Gudelsky Dr., Rockville, MD 20850, United States; Department of Cell Biology and Molecular Genetics, 1109 Microbiology Building, University of Maryland, College Park, MD 20742, United States.
University of Maryland, College Park · USNational Institute of Standards and Technology · US

Funding

Structure-Based Vaccine Design for Hepatits C VirusR01AI132213 · NIAID · UNIV OF MARYLAND, COLLEGE PARK · PI ANDRIANOV, ALEXANDER, FOUNG, STEVEN · 2017 to 2021
$6.0M
Nanoparticle contrast agents for earlier breast cancer detectionR01CA227142 · NCI · UNIVERSITY OF PENNSYLVANIA · PI CORMODE, DAVID PETER · 2018 to 2022
$2.5M
NCI NIH HHS R01 CA227142NIAID NIH HHS R01 AI132213
6 · The paper itself

Abstract

Nanoparticulate and water-soluble formulations of ionic polyphosphazenes and protein cargo - lysozyme (LYZ) were prepared by their self-assembly in aqueous solutions at near physiological pH (pH 7.4) in the presence and absence of an ionic cross-linker - spermine tetrahydrochloride. Efficiency of LYZ encapsulation, physico-chemical characteristics of formulations, and the effect of reaction parameters were investigated using asymmetric flow field flow fractionation (AF4) and dynamic light scattering (DLS) methods. The effect of both polymer formulations on encapsulated LYZ was evaluated using soluble oligosaccharide substrate, whereas their ability to present the protein to cellular surfaces was assessed by measuring enzymatic activity of encapsulated LYZ against Micrococcus lysodeikticus cells. It was found that both soluble and cross-linked polymer matrices reduce lysis of bacterial cells by LYZ, whereas activity of encapsulated protein against oligosaccharide substrate remained practically unchanged indicating no adverse effect of polyphosphazene on protein integrity. Moreover, nanoparticulate formulations display distinctly different behavior in cellular assays when compared to their soluble counterparts. LYZ encapsulated in polyphosphazene nanoparticles shows approximately 2.5-fold higher activity in its ability to lyse cells as compared with water-soluble LYZ-PCPP formulations. A new approach to PEGylation of polyphosphazene nanoparticles was also developed. The method utilizes a new ionic polyphosphazene derivative, which contains graft (polyethylene glycol) chains. PEGylation allows for an improved control over the size of nanoparticles and broader modulation of their cross-linking density, while still permitting for protein presentation to cellular substrates.

Indexed as

NanoparticlesOrganophosphorus CompoundsPolyethylene GlycolsPolymersOrganophosphorus CompoundsPolyethylene GlycolsPolymerspoly(phosphazene)Bacterial cellsNanoparticlesPEGylationPolymer-protein interactionsPolyphosphazeneSelf-assembly

Identifiers

PMID31753403
PMCPMC6903416
OpenAlexW2972505403

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.