Evidence map›Paper›PMID 17965848›Full record

ArticleJournal of molecular medicine (Berlin, Germany)2008

Quantum dot-induced epigenetic and genotoxic changes in human breast cancer cells.

Angela O Choi, Shelley E Brown, Moshe Szyf, Dusica Maysinger

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of molecular medicine (Berlin, Germany), 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 2 pooled it
5.2field-weighted citation impact, top 3% 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

56 citing papers in PubMed, 2 syntheses or guidelines pooled it, 208 citations in OpenAlex.

  1. Analyzing Molecular Determinants of Nanodrugs' Cytotoxic Effects.International journal of molecular sciences · 2025
    Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Review
  6. Article
  7. Emerging nanoplatforms towards microenvironment-responsive glioma therapy.Medical oncology (Northwood, London, England) · 2025
    Review
  8. Review
  9. Review
  10. Impact of Heavy Metals on Glioma Tumorigenesis.International journal of molecular sciences · 2023
    Review
  11. Review
  12. Review
  13. Article
  14. Epigenetic Effects of Nanomaterials and Nanoparticles.Journal of nanobiotechnology · 2021
    Review
  15. Review
  16. Review
  17. Article
  18. Article
  19. Article
  20. 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

4 authors at 1 institution in 1 country.

Angela O ChoiDepartment of Pharmacology and Therapeutics, McGill University, 3655 Promenade Sir William-Osler, McIntyre Medical Sciences Building, Montreal H3G 1Y6, Canada.
Shelley E Brown
Moshe Szyf
Dusica Maysinger
McGill University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The staggering array of nanotechnological products, found in our environment and those applicable in medicine, has stimulated a growing interest in examining their long-term impact on genetic and epigenetic processes. We examined here the epigenomic and genotoxic response to cadmium telluride quantum dots (QDs) in human breast carcinoma cells. QD treatment induced global hypoacetylation implying a global epigenomic response. The ubiquitous responder to genotoxic stress, p53, was activated by QD challenge resulting in translocation of p53, with subsequent upregulation of downstream targets Puma and Noxa. Consequential decrease in cell viability was in part prevented by the p53 inhibitor pifithrin-alpha, suggesting that p53 translocation contributes to QD-induced cytotoxicity. These findings suggest three levels of nanoparticle-induced cellular changes: non-genomic, genomic and epigenetic. Epigenetic changes may have long-term effects on gene expression programming long after the initial signal has been removed, and if these changes remain undetected, it could lead to long-term untoward effects in biological systems. These studies suggest that aside from genotoxic effects, nanoparticles could cause more subtle epigenetic changes which merit thorough examination of environmental nanoparticles and novel candidate nanomaterials for medical applications.

Indexed as

DNA DamageEpigenesis, GeneticQuantum DotsAcetylationAnimalsApoptosis Regulatory ProteinsBreast NeoplasmsCell Line, TumorCell NucleusChromatinGene Expression Regulation, NeoplasticHistonesHumansMitochondriaModels, BiologicalPC12 CellsApoptosis Regulatory ProteinsChromatinHistonesRNA, MessengerTumor Suppressor Protein p53

Identifiers

PMID17965848
OpenAlexW2101856684

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.