Evidence map›Paper›PMID 25259648›Full record

ArticleACS nano2014

Brain-penetrating nanoparticles improve paclitaxel efficacy in malignant glioma following local administration.

Elizabeth Nance, Clark Zhang, Ting-Yu Shih, Qingguo Xu, Benjamin S Schuster, Justin Hanes

Open access · bronzeAbstract read
In one paragraph

Article in ACS nano, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers.

0numbers the graph read from it
0cells of the map it votes in
102citing papers in PubMed
10.8field-weighted citation impact, top 1% 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

102 citing papers in PubMed, 257 citations in OpenAlex.

  1. Sonoselective Transfection of Glioma Endothelium.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  2. Review
  3. Article
  4. Article
  5. Article
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  8. Glioma Cell Membrane-Coated CaCOInternational journal of nanomedicine · 2026
    Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Review
  14. Review
  15. Emerging nanoplatforms towards microenvironment-responsive glioma therapy.Medical oncology (Northwood, London, England) · 2025
    Review
  16. Review
  17. A journey through the history of PEGylated drug delivery nanocarriers.Drug delivery and translational research · 2024
    Article
  18. Review
  19. Article
  20. Article

42 more citing papers are in PubMed but not listed here.

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 2 institutions in 1 country.

Elizabeth NanceCenter for Nanomedicine at the Wilmer Eye Institute, ‡Department of Biomedical Engineering, ∥Department of Ophthalmology, #Deparments of Oncology, Pharmacology and Molecular Sciences, and Neurosurgery, Johns Hopkins University School of Medicine , Baltimore, Maryland 21231, United States.
Clark Zhang
Ting-Yu Shih
Qingguo Xu
Benjamin S Schuster
Justin Hanes
Johns Hopkins University · USJohns Hopkins Medicine · US

Funding

ValidationU54CA151838 · NCI · JOHNS HOPKINS UNIVERSITY · PI POMPER, MARTIN G · 2010 to 2014
$11.9M
Brain Tumor-Penetrating Nanoparticle Delivery with MR-Guided Focused UltrasoundR01CA164789 · NCI · UNIVERSITY OF VIRGINIA · PI HANES, JUSTIN S., PRICE, RICHARD J. · 2012 to 2016
$3.1M
NCI NIH HHS NCI U54CA151838NCI NIH HHS NIH R01 CA164789-02NCI NIH HHS R01 CA164789NCI NIH HHS U54 CA151838
6 · The paper itself

Abstract

Poor drug distribution and short drug half-life within tumors strongly limit efficacy of chemotherapies in most cancers, including primary brain tumors. Local or targeted drug delivery via controlled-release polymers is a promising strategy to treat infiltrative brain tumors, which cannot be completely removed surgically. However, drug penetration is limited with conventional local therapies since small-molecule drugs often enter the first cell they encounter and travel only short distances from the site of administration. Nanoparticles that avoid adhesive interactions with the tumor extracellular matrix may improve drug distribution and sustain drug release when applied to the tumor area. We have previously shown model polystyrene nanoparticles up to 114 nm in diameter were able to rapidly diffuse in normal brain tissue, but only if coated with an exceptionally dense layer of poly(ethylene glycol) (PEG) to reduce adhesive interactions. Here, we demonstrate that paclitaxel (PTX)-loaded, poly(lactic-co-glycolic acid) (PLGA)-co-PEG block copolymer nanoparticles with an average diameter of 70 nm were able to diffuse 100-fold faster than similarly sized PTX-loaded PLGA particles (without PEG coatings). Densely PEGylated PTX-loaded nanoparticles significantly delayed tumor growth following local administration to established brain tumors, as compared to PTX-loaded PLGA nanoparticles or unencapsulated PTX. Delayed tumor growth combined with enhanced distribution of drug-loaded PLGA-PEG nanoparticles to the tumor infiltrative front demonstrates that particle penetration within the brain tumor parenchyma improves therapeutic efficacy. The use of drug-loaded brain-penetrating nanoparticles is a promising approach to achieve sustained and more uniform drug delivery to treat aggressive gliomas and potentially other brain disorders.

Indexed as

NanoparticlesAntineoplastic Agents, PhytogenicBrainBrain NeoplasmsGliomaHumansPaclitaxelAntineoplastic Agents, PhytogenicPaclitaxelbrain cancerdrug deliverynanomedicineparticle tracking

Identifiers

PMID25259648
PMCPMC4212792
OpenAlexW2089028118

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.