Evidence map›Paper›PMID 23261217›Full record

ArticleBiomaterials2013

Melittin-grafted HPMA-oligolysine based copolymers for gene delivery.

Joan G Schellinger, Joshuel A Pahang, Russell N Johnson, David S H Chu, Drew L Sellers, Don O Maris, Anthony J Convertine, Patrick S Stayton, Philip J Horner, Suzie H Pun

Abstract read
In one paragraph

Article in Biomaterials, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
3.1field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 60 citations in OpenAlex.

  1. Intrathecal drug delivery in the era of nanomedicine.Advanced drug delivery reviews · 2020
    Pooled it
  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
    Article
  3. Drug delivery to the central nervous system.Nature reviews. Materials · 2022
    Article
  4. Peptide-Assisted Nucleic Acid Delivery Systems on the Rise.International journal of molecular sciences · 2021
    Review
  5. In vitro and in vivo delivery of siRNA via VIPER polymer system to lung cells.Journal of controlled release : official journal of the Controlled Release Society · 2018
    Article
  6. Review
  7. Review
  8. Virus-Inspired Polymer for Efficient In Vitro and In Vivo Gene Delivery.Angewandte Chemie (International ed. in English) · 2016
    Article
  9. Review
  10. Review
  11. Multivalent display of pendant pro-apoptotic peptides increases cytotoxic activity.Journal of controlled release : official journal of the Controlled Release Society · 2015
    Article
  12. Article
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  14. Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 1 country.

Joan G SchellingerDepartment of Bioengineering, Univeristy of Washington, Seattle, WA 98195, USA.
Joshuel A Pahang
Russell N Johnson
David S H Chu
Drew L Sellers
Don O Maris
Anthony J Convertine
Patrick S Stayton
Philip J Horner
Suzie H Pun
University of Washington · USNeurological Surgery · US

Funding

Ultrasound-aided gene transfer to direct cortical neurogenesis after brain injuryR01NS064404 · NINDS · UNIVERSITY OF WASHINGTON · PI HORNER, PHILIP J, PUN, SUZIE H. · 2009 to 2018
$3.5M
Nanotechnology and Physical Science Training Program in Cancer ResearchT32CA138312 · NCI · UNIVERSITY OF WASHINGTON · PI ZHANG, MIQIN · 2009 to 2013
$1.5M
NCI NIH HHS T32 CA138312NCI NIH HHS T32CA138312NINDS NIH HHS 1R01 NS064404NINDS NIH HHS R01 NS064404
6 · The paper itself

Abstract

Non-viral gene delivery systems capable of transfecting cells in the brain are critical in realizing the potential impact of nucleic acid therapeutics for diseases of the central nervous system. In this study, the membrane-lytic peptide melittin was incorporated into block copolymers synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization. The first block, designed for melittin conjugation, was composed of N-(2-hydroxypropyl)methacrylamide (HPMA) and pyridyl disulfide methacrylamide (PDSMA) and the second block, designed for DNA binding, was composed of oligo-l-lysine (K10) and HPMA. Melittin modified with cysteine at the C-terminus was conjugated to the polymers through the pyridyl disulfide pendent groups via disulfide exchange. The resulting pHgMelbHK10 copolymers are more membrane-lytic than melittin-free control polymers, and efficiently condensed plasmid DNA into salt-stable particles (~100-200 nm). The melittin-modified polymers transfected both HeLa and neuron-like PC-12 cells more efficiently than melittin-free polymers although toxicity associated with the melittin peptide was observed. Optimized formulations containing the luciferase reporter gene were delivered to mouse brain by intraventricular brain injections. Melittin-containing polyplexes produced about 35-fold higher luciferase activity in the brain compared to polyplexes without melittin. Thus, the melittin-containing block copolymers described in this work are promising materials for gene delivery to the brain.

Indexed as

Gene Transfer TechniquesAcrylamidesAnimalsBrainDNA-Binding ProteinsFemaleGenes, ReporterGenetic TherapyHeLa CellsHumansLuciferasesLysineMelittenMethacrylatesMiceMice, Inbred C57BLAcrylamidesDNA-Binding Proteinshydroxypropyl methacrylateLuciferasesLysineMelittenmethacrylamideMethacrylatesN-(2-hydroxypropyl)methacrylamidePolymers

Identifiers

PMID23261217
PMCPMC3552146
OpenAlexW2046600195

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.