Evidence map›Paper›PMID 21594715›Full record

ArticlePharmaceutical research2011

PEGylation improves nanoparticle formation and transfection efficiency of messenger RNA.

Senta Uzgün, Gabriela Nica, Corinna Pfeifer, Michele Bosinco, Kai Michaelis, Jean-François Lutz, Marc Schneider, Joseph Rosenecker, Carsten Rudolph

Abstract read
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In one paragraph

Article in Pharmaceutical research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
0.8field-weighted citation impact, top 30% 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

22 citing papers in PubMed, 47 citations in OpenAlex.

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  12. An Overview of Methods and Tools for Transfection of Eukaryotic CellsFrontiers in bioengineering and biotechnology · 2021
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  20. Charge-altering releasable transporters (CARTs) for the delivery and release of mRNA in living animals.Proceedings of the National Academy of Sciences of the United States of America · 2017
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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

9 authors at 4 institutions in 1 country.

Senta UzgünDivision of Molecular Pulmonology, Department of Pediatrics, Ludwig Maximilians University of Munich, Lindwurmstr. 2a, 80337 Munich, Germany.
Gabriela Nica
Corinna Pfeifer
Michele Bosinco
Kai Michaelis
Jean-François Lutz
Marc Schneider
Joseph Rosenecker
Carsten Rudolph
Ludwig-Maximilians-Universität München · DEFreie Universität Berlin · DESaarland University · DEFraunhofer Society · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeCationic polymers have been intensively investigated for plasmid-DNA (pDNA), but few studies addressed their use for messenger-RNA (mRNA) delivery. We analyzed two types of polymers, linear polyethylenimine (l-PEI) and poly-N,N-dimethylaminoethylmethacrylate P(DMAEMA), to highlight specific requirements for the design of mRNA delivery reagents. The effect of PEGylation was investigated using P(DMAEMA-co-OEGMA) copolymer.

methodsThe influence of polymer structure on mRNA binding and particle formation was assessed in a side-by-side comparison with pDNA by methods such as agarose-retardation assay and scanning probe microscopy. Transfection studies were performed on bronchial epithelial cells.

resultsBinding of cationic polymers inversely correlated with type of nucleic acid. Whereas P(DMAEMA) bound strongly to pDNA, only weak mRNA binding was observed, which was vice versa for l-PEI. Both polymers resulted in self-assembled nanoparticles forming pDNA complexes of irregular round shape; mRNA particles were significantly smaller and more distinct. Surprisingly, PEGylation improved mRNA binding and transfection efficiency contrary to observations made with pDNA. Co-transfections with free polymer improved mRNA transfection.

conclusionsGene delivery requires tailor-made design for each type of nucleic acid. PEGylation influenced mRNA-polymer binding efficiency and transfection and may provide a method of further improving mRNA delivery.

Indexed as

RNA, MessengerTransfectionCell LineDrug CarriersElectrophoresis, Agar GelEpithelial CellsHemagglutinins, ViralHumansLuciferasesMethacrylatesMicroscopy, Atomic ForceNanoparticlesPolyethylene GlycolsPolyethyleneiminePolymethacrylic AcidsSurface Properties2-(dimethylamino)ethyl methacrylateDrug Carriershemagglutinin HA-2 fusogenic peptide, Influenza virusHemagglutinins, ViralLuciferasesMethacrylatespolyethylene glycol methacrylatePolyethylene GlycolsPolyethyleneiminePolymethacrylic AcidsRNA, Messenger

Identifiers

PMID21594715
OpenAlexW1963630056

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.