Evidence map›Paper›PMID 21556345›Full record

ArticleInternational journal of nanomedicine2011

Increased paclitaxel cytotoxicity against cancer cell lines using a novel functionalized carbon nanotube.

Z Sobhani, R Dinarvand, F Atyabi, M Ghahremani, M Adeli

Open access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
5.1field-weighted citation impact, top 4% 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

17 citing papers in PubMed, 95 citations in OpenAlex.

  1. Review
  2. Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Nanoparticle-Mediated Combination Therapy: Two-in-One Approach for Cancer.International journal of molecular sciences · 2018
    Review
  8. Article
  9. Review
  10. Article
  11. Article
  12. Modified Gadonanotubes as a promising novel MRI contrasting agent.Daru : journal of Faculty of Pharmacy, Tehran University of Medical Sciences · 2013
    Article
  13. Paclitaxel Nano-Delivery Systems: A Comprehensive Review.Journal of nanomedicine & nanotechnology · 2013
    Article
  14. Article
  15. Nanotechnology-based approaches in anticancer research.International journal of nanomedicine · 2012
    Review
  16. Nanoparticles applied to cancer immunoregulation.Reports of practical oncology and radiotherapy : journal of Greatpoland Cancer Center in Poznan and Polish Society of Radiation Oncology
    Review
  17. 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 3 institutions in 2 countries.

Z SobhaniDepartment of Pharmaceutics, Tehran University of Medical Sciences, Tehran, Iran.
R Dinarvand
F Atyabi
M Ghahremani
M Adeli
American Pharmacists Association · USSharif University of Technology · IRTehran University of Medical Sciences · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Potential applications of carbon nanotubes have attracted many researchers in the field of drug delivery systems. In this study, multiwalled carbon nanotubes (MWNTs) were first functionalized using hyperbranched poly citric acid (PCA) to improve their hydrophilicity and functionality. Then, paclitaxel (PTX), a potent anticancer agent, was conjugated to the carboxyl functional groups of poly citric acid via a cleavable ester bond to obtain a MWNT-g-PCA-PTX conjugate. Drug content of the conjugate was about 38% (w/w). The particle size of MWNT-g-PCA and MWNT-g-PCA-PTX was approximately 125 and 200 nm, respectively. Atomic force microscopy and transmission electron microscopy images showed a curved shape for MWNT-g-PCA and MWNT-g-PCA-PTX, which was in contrast with the straight or linear conformation expected from carbon nanotubes. It seems that the high hydrophilicity of poly citric acid and high hydrophobicity of MWNTs led to conformational changes from a linear state to a curved state. Paclitaxel can be released from the MWNT-g-PCA-PTX conjugates faster at pH 6.8 and 5.0 than at pH 7.4, which was suitable for the release of the drug in tumor tissues and tumor cells. In vitro cytotoxicity studies were evaluated in the A549 and SKOV3 cell lines. MWNT-g-PCA had an insignificant cytotoxic effect on both cell lines. MWNT-g-PCA-PTX had more of a cytotoxic effect than the free drug over a shorter incubation time (eg, 24 hours versus 48 hours), which suggests improved cell penetration of MWNT-g-PCA-PTX. Therefore, paclitaxel conjugated to MWNT-g-PCA is promising for cancer therapeutics.

Indexed as

Antineoplastic AgentsCell Line, TumorCell SurvivalDrug Delivery SystemsDrug Screening Assays, AntitumorHumansMicroscopy, Atomic ForceMicroscopy, Electron, TransmissionNanotubes, CarbonPaclitaxelParticle SizeAntineoplastic AgentsNanotubes, CarbonPaclitaxelanticancerdrug deliveryfunctionalizationmultiwalled carbon nanotubesnanoparticles

Identifiers

PMID21556345
PMCPMC3084317
OpenAlexW1992630683

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.