Evidence map›Paper›PMID 22786534›Full record

ArticleGene therapy2013

High-affinity PEGylated polyacridine peptide polyplexes mediate potent in vivo gene expression.

K Kizzire, S Khargharia, K G Rice

Abstract read
In one paragraph

Article in Gene therapy, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

19 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
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  3. The reduced-charge melittin analogue MelP5 improves the transfection of non-viral DNA nanoparticles.Journal of peptide science : an official publication of the European Peptide Society · 2022
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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

3 authors at 1 institution in 1 country.

K KizzireDivision of Medicinal and Natural Products Chemistry, College of Pharmacy, University of Iowa, Iowa City, IA 52242, USA.
S Khargharia
K G Rice
University of Iowa · US

Funding

Predoctoral Training in the Pharmacological SciencesT32GM067795 · NIGMS · UNIVERSITY OF IOWA · PI STRACK, STEFAN · 2004 to 2021
$3.4M
Polyacridine Peptide Mediated Gene TargetingR01GM097093 · NIGMS · UNIVERSITY OF IOWA · PI RICE, KEVIN G · 2011 to 2014
$1.1M
NIGMS NIH HHS GM097093NIGMS NIH HHS R01 GM097093NIGMS NIH HHS T32 GM067795NIGMS NIH HHS T32GM067795
6 · The paper itself

Abstract

Polyethylene glycol (PEG)ylated polyacridine peptides bind to plasmid DNA with high affinity to form unique polyplexes that possess a long circulatory half-life and are hydrodynamically (HD)-stimulated to produce efficient gene expression in the liver of mice. We previously demonstrated that acridine-modified lysine (Acr) in (Acr-Lys)(6)-Cys-PEG(5kDa) stabilizes a 1-μg pGL3 dose for up to 1 h in the circulation, resulting in HD-stimulated (saline only) gene expression in the liver, equivalent in magnitude to direct-HD dosing of 1 μg of pGL3. In this study, we report that increasing the spacing of Acr with either four or five Lys residues markedly increases the stability of PEGylated polyacridine peptide polyplexes in the circulation allowing maximal HD-stimulated expression for up to 5 h post DNA administration. Co-administration of a decoy dose of 9 μg of non-expressing DNA polyplex with 1 μg of pGL3 polyplex further extended the HD-stimulated expression to 9 h. This structure-activity relationship study defines the PEGylated polyacridine peptide requirements for maintaining fully transfection competent plasmid DNA in the circulation for 5 h and provides an understanding as to why polyplexes or lipoplexes prepared with polyethylenimine, chitosan or Lipofectamine are inactive within 5 min following intravenous dosing.

Indexed as

Transcription, GeneticAcridinesAnimalsDNALiverMicePeptidesPlasmidsPolyethylene GlycolsStructure-Activity RelationshipTissue DistributionTransfectionAcridinesDNAPeptidesPolyethylene Glycols

Identifiers

PMID22786534
PMCPMC3665005
OpenAlexW2046207020

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.