Evidence map›Paper›PMID 21948322›Full record

ArticleAAPS PharmSciTech2011

Methotrexate-loaded chitosan- and glycol chitosan-based nanoparticles: a promising strategy for the administration of the anticancer drug to brain tumors.

Adriana Trapani, Nunzio Denora, Giuliano Iacobellis, Johannes Sitterberg, Udo Bakowsky, Thomas Kissel

Abstract read
In one paragraph

Article in AAPS PharmSciTech, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing 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

13 citing papers in PubMed.

  1. Article
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  11. Recent advances in diagnosis and treatment of gliomas using chlorotoxin-based bioconjugates.American journal of nuclear medicine and molecular imaging · 2014
    Review
  12. Article
  13. 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.

Adriana TrapaniDepartment of Pharmaceutical Chemistry, School of Pharmacy, University of Bari, Italy. atrapani@farmchim.uniba.it
Nunzio Denora
Giuliano Iacobellis
Johannes Sitterberg
Udo Bakowsky
Thomas Kissel

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Brain tumor treatment employing methotrexate (MTX) is limited by the efflux mechanism of Pg-p on the blood-brain barrier. We aimed to investigate MTX-loaded chitosan or glycol chitosan (GCS) nanoparticles (NPs) in the presence and in the absence of a coating layer of Tween 80 for brain delivery of MTX. The effect of a low Tween 80 concentration was evaluated. MTX NPs were formulated following the ionic gelation technique and size and zeta potential measurements were acquired. Transport across MDCKII-MDR1 monolayer and cytotoxicity studies against C6 glioma cell line were also performed. Cell/particles interaction was visualized by confocal microscopy. The particles were shown to be cytotoxic against C6 cells line and able to overcome MDCKII-MDR1 cell barrier. GCS-based NPs were the most cytotoxic NPs. Confocal observations highlighted the internalization of Tween 80-coated fluorescent NPs more than Tween 80-uncoated NPs. The results suggest that even a low concentration of Tween 80 is sufficient for enhancing the transport of MTX from the NPs across MDCKII-MDR1 cells. The nanocarriers represent a promising strategy for the administration of MTX to brain tumors which merits further investigations under in vivo conditions.

Indexed as

Drug CarriersNanoparticlesNanotechnologyAnimalsAntimetabolites, AntineoplasticATP Binding Cassette Transporter, Subfamily B, Member 1Blood-Brain BarrierBrain NeoplasmsCapillary PermeabilityCell LineCell SurvivalChemistry, PharmaceuticalChitosanDogsDose-Response Relationship, DrugDrug CompoundingAntimetabolites, AntineoplasticATP Binding Cassette Transporter, Subfamily B, Member 1ChitosanDrug CarriersGlycolsMethotrexatePolysorbates

Identifiers

PMID21948322
PMCPMC3225549

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.