Evidence map›Paper›PMID 25907042›Full record

ArticleBiomaterials2015

Guanidinylated block copolymers for gene transfer: A comparison with amine-based materials for in vitro and in vivo gene transfer efficiency.

Jennifer L Choi, James-Kevin Y Tan, Drew L Sellers, Hua Wei, Philip J Horner, Suzie H Pun

Abstract readComparative Study
In one paragraph

Article in Biomaterials, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 22 citations in OpenAlex.

  1. Intrathecal drug delivery in the era of nanomedicine.Advanced drug delivery reviews · 2020
    Pooled it
  2. Review
  3. Increased RNAi Efficacy inFrontiers in physiology · 2018
    Article
  4. Article
  5. Microbubbles and ultrasound increase intraventricular polyplex gene transfer to the brain.Journal of controlled release : official journal of the Controlled Release Society · 2016
    Article
  6. Nano-Sized Sunflower Polycations As Effective Gene Transfer Vehicles.Small (Weinheim an der Bergstrasse, Germany) · 2016
    Article
  7. Article
  8. Review
  9. Article
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

6 authors at 1 institution in 1 country.

Jennifer L ChoiDepartment of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA 98195, USA.
James-Kevin Y TanDepartment of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA 98195, USA.
Drew L SellersDepartment of Neurological Surgery, University of Washington, Seattle, WA 98104, USA.
Hua WeiDepartment of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA 98195, USA.
Philip J HornerDepartment of Neurological Surgery, University of Washington, Seattle, WA 98104, USA. Electronic address: phorner@u.washington.edu.
Suzie H PunDepartment of Bioengineering and Molecular Engineering and Sciences Institute, University of Washington, Seattle, WA 98195, USA. Electronic address: spun@u.washington.edu.
University of Washington · 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
NINDS NIH HHS 2R01NS064404NINDS NIH HHS R01 NS064404
6 · The paper itself

Abstract

There is currently no cure for neuron loss in the brain, which can occur due to traumatic injury or neurodegenerative disease. One proposed method to enhance brain neurogenesis is gene transfer to neural progenitor cells. In this work, a guanidine-based copolymer was synthesized and compared to an amine-based copolymer analog previously shown to effectively deliver genes in the murine brain. The guanidine-based copolymer was more efficient at gene transfer to immortalized, cultured cell lines; however, the amine-based copolymer was more effective at gene transfer in the brain. DNA condensation studies revealed that the nucleic acid complexes formed with the guanidine-based copolymer were more susceptible to unpackaging in the presence of anionic proteoglycans compared to complexes formed with the amine-based copolymer. Therefore, polyplexes formed from the amine-based copolymer may be more resistant to destabilization by the heparan sulfate proteoglycans present in the stem cell niches of the brain.

Indexed as

AminesCell LineDNAGuanidineHeLa CellsHumansMaterials TestingNanocapsulesNeural Stem CellsPolymersTransfectionAminesDNAGuanidineNanocapsulesPolymersBrainGene deliveryGuanidinePolymer

Identifiers

PMID25907042
PMCPMC4409668
OpenAlexW2070807813

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.