Evidence map›Paper›PMID 19650971›Full record

ArticleCell transplantation2009

Compacted DNA nanoparticle gene transfer of GDNF to the rat striatum enhances the survival of grafted fetal dopamine neurons.

David M Yurek, Anita M Flectcher, Tomasz H Kowalczyk, Linas Padegimas, Mark J Cooper

Open access · bronzeAbstract read
In one paragraph

Article in Cell transplantation, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

27 citing papers in PubMed, 73 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Review
  6. Review
  7. Review
  8. DNA nanoparticles are safe and nontoxic in non-human primate eyes.International journal of nanomedicine · 2018
    Article
  9. Article
  10. Non-viral therapeutic approaches to ocular diseases: An overview and future directions.Journal of controlled release : official journal of the Controlled Release Society · 2015
    Review
  11. Article
  12. Genomic DNA nanoparticles rescue rhodopsin-associated retinitis pigmentosa phenotype.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2015
    Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Immune effects of optimized DNA vaccine and protective effects in a MPTP model of Parkinson's disease.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2013
    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 2 institutions in 1 country.

David M YurekDepartment of Neurosurgery, University of Kentucky College of Medicine, Lexington, KY 40536-0305, USA. David.Yurek@uky.edu
Anita M Flectcher
Tomasz H Kowalczyk
Linas Padegimas
Mark J Cooper
Copernicus Therapeutics (United States) · USUniversity of Kentucky · US

Funding

Stem Cell Adaptability in Parkinson'DiseaseR01NS050311 · NINDS · UNIVERSITY OF KENTUCKY · PI YUREK, DAVID M. · 2005 to 2009
$1.6M
NINDS NIH HHS R01 NS050311
6 · The paper itself

Abstract

Previously it was established that infusion of glial cell line-derived neurotrophic factor (GDNF) protein into grafts of embryonic dopamine cells has a neurotrophic effect on the grafted cells. In this study we used a nonviral technique to transfer the gene encoding for GDNF to striatal cells. Plasmid DNA encoding for GDNF was compacted into DNA nanoparticles (DNPs) by 10 kDa polyethylene glycol (PEG)-substituted lysine 30-mers (CK(30)PEG10k) and then injected into the denervated striatum of rats with unilateral 6-hydroxydopamine lesions. Sham controls were injected with saline. One week later, experimental animals received either a ventral mesencephalic (VM) tissue chunk graft or a cell suspension VM graft implanted into the denervated striatum. Grafts were allowed to integrate for 4-6 weeks and during this period we monitored spontaneous and drug-induced motor activity. Using stereological cell counting we observed a 16-fold increase in the number of surviving TH(+) cells within tissue chunk grafts placed into the striatum pretreated with pGDNF DNPs (14,923 +/- 4,326) when compared to grafts placed into striatum pretreated with saline (955 +/- 343). Similarly, we observed a sevenfold increase in the number of TH(+) cells within cell suspension grafts placed into the striatum treated with pGDNF DNPs when compared to cell suspension grafts placed into the saline dosed striatum. Behaviorally, we observed significant improvement in rotational scores and in spontaneous forepaw usage of the affected forelimb in grafted animals receiving prior treatment with compacted pGDNF DNPs when compared to grafted animals receiving saline control pretreatment. Data analysis for protein, morphological, and behavioral measures suggests that compacted pGDNF DNPs injected into the striatum can result in transfected cells overexpressing GDNF protein at levels that provide neurotrophic support for grafted embryonic dopamine neurons.

Indexed as

Brain Tissue TransplantationFetal Tissue TransplantationGene Transfer TechniquesAnimalsBehavior, AnimalCorpus StriatumDisease Models, AnimalDNADopamineGlial Cell Line-Derived Neurotrophic FactorMaleMesencephalonMotor ActivityNanoparticlesNeuronsParkinson DiseaseDNADopamineGlial Cell Line-Derived Neurotrophic FactorPolyethylene GlycolsPolylysine

Identifiers

PMID19650971
PMCPMC3031110
OpenAlexW1999156699

What OpenQuestion holds

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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.