Evidence map›Paper›PMID 20720577›Full record

ArticleGene therapy2011

Metabolically stabilized long-circulating PEGylated polyacridine peptide polyplexes mediate hydrodynamically stimulated gene expression in liver.

C A Fernandez, N J Baumhover, J T Duskey, S Khargharia, K Kizzire, M D Ericson, K G Rice

Open access · greenAbstract read
In one paragraph

Article in Gene therapy, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.5field-weighted citation impact, top 19% 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

16 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. 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

7 authors at 1 institution in 1 country.

C A FernandezDivisions of Pharmaceutics and Medicinal and Natural Products Chemistry, College of Pharmacy, University of Iowa, Iowa City, IA 52242, USA.
N J Baumhover
J T Duskey
S Khargharia
K Kizzire
M D Ericson
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
RAMP Mediated Gene DeliveryR01GM087653 · NIGMS · UNIVERSITY OF IOWA · PI RICE, KEVIN G · 2009 to 2012
$1.2M
Polyacridine Peptide Mediated Gene TargetingR01GM097093 · NIGMS · UNIVERSITY OF IOWA · PI RICE, KEVIN G · 2011 to 2014
$1.1M
Proteosome Inhibitor Enhanced Non-Viral Gene DeliveryR01DK066212 · NIDDK · UNIVERSITY OF IOWA · PI RICE, KEVIN G · 2005 to 2008
$1.0M
NIDDK NIH HHS DK066212NIDDK NIH HHS R01 DK066212NIGMS NIH HHS R01 GM087653NIGMS NIH HHS R01 GM097093NIGMS NIH HHS T32 GM067795
6 · The paper itself

Abstract

A novel class of PEGylated polyacridine peptides was developed that mediate potent stimulated gene transfer in the liver of mice. Polyacridine peptides, (Acr-X)(n)-Cys-polyethylene glycol (PEG), possessing 2-6 repeats of Lys-acridine (Acr) spaced by either Lys, Arg, Leu or Glu, were Cys derivatized with PEG (PEG(5000 kDa)) and evaluated as in vivo gene transfer agents. An optimal peptide of (Acr-Lys)(6)-Cys-PEG was able to bind to plasmid DNA (pGL3) with high affinity by polyintercalation, stabilize DNA from metabolism by DNAse and extend the pharmacokinetic half-life of DNA in the circulation for up to 2 h. A tail vein dose of PEGylated polyacridine peptide pGL3 polyplexes (1 μg in 50 μl), followed by a stimulatory hydrodynamic dose of normal saline at times ranging from 5 to 60 min post-DNA administration, led to a high level of luciferase expression in the liver, equivalent to levels mediated by direct hydrodynamic dosing of 1 μg of pGL3. The results establish the unique properties of PEGylated polyacridine peptides as a new and promising class of gene delivery peptides that facilitate reversible binding to plasmid DNA, protecting it from DNase in vivo resulting in an extended circulatory half-life, and release of transfection-competent DNA into the liver to mediate a high-level of gene expression upon hydrodynamic boost.

Indexed as

Gene ExpressionAcridinesAnimalsDNAGene Transfer TechniquesHalf-LifeHydrodynamicsLiverMicePeptidesPlasmidsPolyethylene GlycolsTransfectionAcridinesDNAPeptidesPolyethylene Glycols

Identifiers

PMID20720577
PMCPMC2990782
OpenAlexW2011767176

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.