Evidence map›Paper›PMID 22403486›Full record

ArticleInternational journal of nanomedicine2012

In vitro and in vivo studies on gelatin-siloxane nanoparticles conjugated with SynB peptide to increase drug delivery to the brain.

Xin-hua Tian, Feng Wei, Tian-xiao Wang, Peng Wang, Xiao-ning Lin, Jun Wang, Dong Wang, Lei Ren

Abstract read
In one paragraph

Article in International journal of nanomedicine, 2012. 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
–field-weighted citation impact
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.

  1. Review
  2. Review
  3. Review
  4. Review
  5. In Vitro Models of Biological Barriers for Nanomedical Research.International journal of molecular sciences · 2022
    Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Translocation of cell-penetrating peptides into Candida fungal pathogens.Protein science : a publication of the Protein Society · 2017
    Article
  11. Article
  12. Review
  13. Enabling nanomaterial, nanofabrication and cellular technologies for nanoneuromedicines.Nanomedicine : nanotechnology, biology, and medicine · 2015
    Review
  14. Nanoscale drug delivery systems and the blood-brain barrier.International journal of nanomedicine · 2014
    Review
  15. Article
  16. 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

8 authors.

Xin-hua TianNeurosurgical Department of Affiliated Zhongshan Hospital, Xiamen University, Xiamen, People's Republic of China.
Feng Wei
Tian-xiao Wang
Peng Wang
Xiao-ning Lin
Jun Wang
Dong Wang
Lei Ren

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNanobiotechnology can provide more efficient tools for diagnosis, targeted and personalized therapy, and increase the chances of brain tumor treatment being successful. Use of nanoparticles is a promising strategy for overcoming the blood-brain barrier and delivering drugs to the brain. Gelatin-siloxane (GS) nanoparticles modified with Tat peptide can enhance plasmid DNA transfection efficiency compared with a commercial reagent.

methodsSynB-PEG-GS nanoparticles are membrane-penetrable, and can cross the blood-brain barrier and deliver a drug to its target site in the brain. The efficiency of delivery was investigated in vivo and in vitro using brain capillary endothelial cells, a cocultured blood-brain barrier model, and a normal mouse model.

resultsOur study demonstrated that both SynB-PEG-GS and PEG-GS nanoparticles had a spherical shape and an average diameter of 150-200 nm. It was shown by MTT assay that SynB-PEG-GS nanoparticles had good biocompatibility with brain capillary endothelial cells. Cellular uptake by SynB-PEG-GS nanoparticles was higher than that for PEG-GS nanoparticles for all incubation periods. The amount of SynB-PEG-GS nanoparticles crossing the cocultured blood-brain barrier model was significantly higher than that of PEG-GS nanoparticles at all time points measured (P < 0.05). In animal testing, SynB-PEG-GS nanoparticle levels in the brain were significantly higher than those of PEG-GS nanoparticles at all time points measured (P < 0.01). In contrast with localization in the brain, PEG-GS nanoparticle levels were significantly higher than those of SynB-PEG-GS nanoparticles (P < 0.01) in the liver.

conclusionThis study indicates that SynB-PEG-GS nanoparticles have favorable properties with regard to morphology, size distribution, and toxicity. Moreover, the SynB-PEG-GS nanoparticles exhibited more efficient brain capillary endothelial cell uptake and improved crossing of the blood-brain barrier. Further, biodistribution studies of rhodamine-loaded nanoparticles demonstrated that modification with the SynB peptide could not only improve the ability of PEG-GS nanoparticles to evade capture in the reticuloendothelial system but also enhance their efficiency in crossing the blood-brain barrier.

Indexed as

AnimalsAstrocytesBlood-Brain BarrierBrainCapillary PermeabilityCells, CulturedDrug CarriersEndothelial CellsGelatinMaleMiceMice, NudeMicroscopy, FluorescenceNanoparticlesParticle SizePeptidesDrug CarriersGelatinPeptidesPolyethylene GlycolsSiloxanesblood-brain barrierbrain targeting deliverynanoparticlespeptide

Identifiers

PMID22403486
PMCPMC3292416

What OpenQuestion holds

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Registered trials

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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.