Evidence map›Paper›PMID 22264036›Full record

ArticleNanotoxicology2013

Cadmium telluride quantum dot nanoparticle cytotoxicity and effects on model immune responses to Pseudomonas aeruginosa.

Kathy C Nguyen, Vern L Seligy, Azam F Tayabali

Open access · bronzeAbstract read
In one paragraph

Article in Nanotoxicology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% 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

13 citing papers in PubMed, 1 synthesis or guideline pooled it, 63 citations in OpenAlex.

  1. Pooled it
  2. Tellurium and Nano-Tellurium: Medicine or Poison?Nanomaterials (Basel, Switzerland) · 2024
    Review
  3. Genome sequence ofHeliyon · 2022
    Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Mitochondrial Toxicity of Cadmium Telluride Quantum Dot Nanoparticles in Mammalian Hepatocytes.Toxicological sciences : an official journal of the Society of Toxicology · 2015
    Article
  10. Article
  11. Critical experimental parameters related to the cytotoxicity of zinc oxide nanoparticles.Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology · 2014
    Article
  12. Article
  13. 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

3 authors at 1 institution in 1 country.

Kathy C NguyenBiotechnology Laboratory, Mechanistic Studies Division, Environmental Health Science and Research Bureau , Health Canada, Ottawa, Ontario , Canada.
Vern L Seligy
Azam F Tayabali
Health Canada · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study examines dose effects of cadmium telluride quantum dots (CdTe-QDs) from two commercial sources on model macrophages (J774A.1) and colonic epithelial cells (HT29). Effects on cellular immune signalling responses were measured following sequential exposure to QDs and Pseudomonas aeruginosa strain PA01. At CdTe-QD concentrations between 10(-2) and 10 µg/ml, cells exhibited changes in metabolism and morphology. Confocal imaging revealed QD internalisation and changes in cell-cell contacts, shapes and internal organisations. QD doses below 10(-2) µg/ml caused no observed effects. When QD exposures at 10(-7) to 10(-3) µg/ml preceded PA01 (10(7) bacteria/ml) challenges, there were elevated cytotoxicity (5-22%, p < 0.05) and reduced levels (two- to fivefold, p < 0.001) of nitric oxide (NO), TNF-α, KC/CXC-1 and IL-8, compared with PA01 exposures alone. These results demonstrate that exposures to sub-toxic levels of CdTe-QDs can depress cell immune-defence functions, which if occurred in vivo would likely interfere with normal neutrophil recruitment for defence against bacteria.

Indexed as

Quantum DotsAnimalsCadmium CompoundsCell SurvivalCytokinesDose-Response Relationship, DrugEnergy MetabolismEpithelial CellsHT29 CellsHumansIntercellular JunctionsMacrophagesMiceMicroscopy, ConfocalNitric OxideParticle SizeCadmium Compoundscadmium tellurideCytokinesNitric OxideTellurium

Identifiers

PMID22264036
PMCPMC3581059
OpenAlexW2099942677

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.