Evidence map›Paper›PMID 17582226›Full record

ArticleThe journal of gene medicine2007

Neuron-specific delivery of nucleic acids mediated by Tet1-modified poly(ethylenimine).

In-Kyu Park, Jurate Lasiene, Shinn-Huey Chou, Philip J Horner, Suzie H Pun

Open access · greenAbstract read
In one paragraph

Article in The journal of gene medicine, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
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

35 citing papers in PubMed, 100 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Review
  12. Review
  13. Peptide-siRNA Supramolecular Particles for Neural Cell Transfection.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2019
    Article
  14. Review
  15. Article
  16. Destination Brain: the Past, Present, and Future of Therapeutic Gene Delivery.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2017
    Review
  17. Article
  18. Article
  19. Article
  20. Review
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

5 authors at 1 institution in 1 country.

In-Kyu ParkDepartment of Bioengineering, University of Washington, Seattle, WA 98195, USA.
Jurate Lasiene
Shinn-Huey Chou
Philip J Horner
Suzie H Pun
University of Washington · US

Funding

Nanoparticles for siRNA delivery to mammalian neuronsR21NS052030 · NINDS · UNIVERSITY OF WASHINGTON · PI PUN, SUZIE H · 2005 to 2007
$499k
NINDS NIH HHS 1R21NS052030-01NINDS NIH HHS R21 NS052030
6 · The paper itself

Abstract

backgroundThe development of minimally invasive, non-viral gene delivery vehicles for the central nervous system (CNS) is an important technology goal in the advancement of molecular therapies for neurological diseases. One approach is to deliver materials peripherally that are recognized and retrogradely transported by motor neurons toward the CNS. Tet1 is a peptide identified by Boulis and coworkers to possess the binding characteristics of tetanus toxin, which interacts specifically with motor neurons and undergoes fast, retrograde delivery to cell soma. In this work, Tet1-poly(ethylenimine) (Tet1-PEI) was synthesized and evaluated as a neurontargeted delivery vehicle.

methodsTet1-PEI and NT-PEI (neurotensin-PEI) were synthesized and complexed with plasmid DNA to form polyplexes. Polyplexes were assessed for binding and uptake in differentiated neuron-like PC-12 cells by flow cytometry and confocal microscopy. In order to determine gene delivery efficiency, polyplexes were exposed to PC-12 cells at various stages of differentiation. Targeted binding of polyplexes with primary neurons was studied using dorsal root ganglion cells.

resultsTet1-PEI and NT-PEI polyplexes bound specifically to differentiated PC-12 cells. The specificity of the interaction was confirmed by delivery to non-neuronal cells and by competition studies with free ligands. Tet1-PEI polyplexes preferentially transfected PC-12 cells undergoing NGF-induced differentiation. Finally, neuron-specific binding of Tet1-PEI polyplexes was confirmed in primary neurons.

conclusionsThese studies demonstrate the potential of Tet1-PEI as a neuron-targeted material for non-invasive CNS delivery. Tet1-PEI binds specifically and is internalized by neuron-like PC-12 cells and primary dorsal root ganglion. Future work will include evaluation of siRNA delivery with these vectors.

Indexed as

Gene Transfer TechniquesAnimalsAstrocytesCell DifferentiationDNADNA-Binding ProteinsEmbryo, MammalianFemaleFibroblastsFlow CytometryGanglia, SpinalGreen Fluorescent ProteinsHumansMiceMice, Inbred C57BLMixed Function OxygenasesDNADNA-Binding Proteinsenhanced green fluorescent proteinGreen Fluorescent ProteinsMixed Function OxygenasesNeurotensinPeptide FragmentsPolyethyleneimineProto-Oncogene ProteinsTET1 protein, human

Identifiers

PMID17582226
PMCPMC2633605
OpenAlexW2015855486

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.