Evidence map›Paper›PMID 19919059›Full record

ArticleBioconjugate chemistry2009

Tamoxifen-poly(ethylene glycol)-thiol gold nanoparticle conjugates: enhanced potency and selective delivery for breast cancer treatment.

Erik C Dreaden, Sandra C Mwakwari, Quaovi H Sodji, Adegboyega K Oyelere, Mostafa A El-Sayed

Abstract read
In one paragraph

Article in Bioconjugate chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed
9.1field-weighted citation impact, top 2% 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

71 citing papers in PubMed, 267 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Review
  6. Review
  7. Review
  8. Review
  9. Article
  10. Recent nanotheranostic approaches in cancer research.Clinical and experimental medicine · 2024
    Review
  11. Metal-based nanoparticle in cancer treatment: lessons learned and challenges.Frontiers in bioengineering and biotechnology · 2024
    Review
  12. Real-Time Monitoring and Control of Nanoparticle Formation.Journal of the American Chemical Society · 2023
    Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Review
  18. Review
  19. Review
  20. Review

11 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

5 authors at 1 institution in 1 country.

Erik C DreadenDepartment of Chemistry and Biochemistry, Georgia Institute of Technology, 901 Atlantic Drive NW, Atlanta, Georgia 30332-0400, USA.
Sandra C Mwakwari
Quaovi H Sodji
Adegboyega K Oyelere
Mostafa A El-Sayed
Georgia Institute of Technology · US

Funding

Tissue and Animal UseU54CA119338 · NCI · EMORY UNIVERSITY · PI NIE, SHUMING · 2005 to 2009
$18.4M
NCI NIH HHS U54 CA119338NCI NIH HHS U54CA119338
6 · The paper itself

Abstract

The breast cancer treatment drug tamoxifen has been widely administered for more than three decades. This small molecule competes with 17beta-estradiol for binding to estrogen receptor, a hormone receptor upregulated in a majority of breast cancers, subsequently initiating programmed cell death. We have synthesized a thiol-PEGylated tamoxifen derivative that can be used to selectively target and deliver plasmonic gold nanoparticles to estrogen receptor positive breast cancer cells with up to 2.7-fold enhanced drug potency in vitro. Optical microscopy/spectroscopy, time-dependent dose-response data, and estrogen competition studies indicate that augmented activity is due to increased rates of intracellular tamoxifen transport by nanoparticle endocytosis, rather than by passive diffusion of the free drug. Both ligand- and receptor-dependent intracellular delivery of gold nanoparticles suggest that plasma membrane localized estrogen receptor alpha may facilitate selective uptake and retention of this and other therapeutic nanoparticle conjugates. Combined targeting selectivity and enhanced potency provides opportunities for both multimodal endocrine treatment strategies and adjunctive laser photothermal therapy.

Indexed as

Drug Delivery SystemsBinding SitesBreast NeoplasmsCell ProliferationDrug Screening Assays, AntitumorEstrogen Receptor alphaGoldHumansLigandsMetal NanoparticlesOrganometallic CompoundsPolyethylene GlycolsSulfhydryl CompoundsTamoxifenTumor Cells, CulturedEstrogen Receptor alphaGoldLigandsOrganometallic CompoundsPolyethylene GlycolsSulfhydryl CompoundsTamoxifen

Identifiers

PMID19919059
PMCPMC2839930
OpenAlexW2083197049

What OpenQuestion holds

Textmetadata
LicenceTDM
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.