Evidence map›Paper›PMID 22789069›Full record

ArticleParticle and fibre toxicology2012

Action of polystyrene nanoparticles of different sizes on lysosomal function and integrity.

Eleonore Fröhlich, Claudia Meindl, Eva Roblegg, Birgit Ebner, Markus Absenger, Thomas R Pieber

Open access · goldAbstract readComparative Study
In one paragraph

Article in Particle and fibre toxicology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
3.9field-weighted citation impact, top 5% 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

39 citing papers in PubMed, 102 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Intracellular Trafficking of Size-Tuned Nanoparticles for Drug Delivery.International journal of molecular sciences · 2023
    Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Impact of Microplastics and Nanoplastics on Human Health.Nanomaterials (Basel, Switzerland) · 2021
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article
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.

Eleonore FröhlichCenter for Medical Research, Medical University of Graz, Austria. eleonore.froehlich@medunigraz.at
Claudia Meindl
Eva Roblegg
Birgit Ebner
Markus Absenger
Thomas R Pieber
Medical University of Graz · ATUniversity of Graz · AT

Funding

Austrian Science Fund FWF P 22576
6 · The paper itself

Abstract

backgroundData from environmental exposure to nanoparticles (NPs) suggest that chronic exposure may increase the incidence of lung, cardiovascular and neurodegenerative diseases. Impairment of cell function by intracellular accumulation of NPs is also suspected. Many types of NPs have been detected in the endosomal-lysosomal system and, upon repeated exposure, alterations of the endosomal-lysosomal system may occur. To identify such effects we compared the effect of carboxyl polystyrene particles (CPS) of different sizes (20-500 nm) on lysosomes of the endothelial cell line EAhy926 after short (24h) and long (72h-96h) exposure times. Lysosomal localization of CPS, as well as lysosomal pH, lysosomal membrane integrity, morphology of the endosomal-lysosomal system and activities of the lysosomal enzymes,cathepsin B and sulfatases, upon exposure to CPS were recorded.

resultsCPS in sizes ≤100 nm showed high co-localization with lysosomes already after 4h, larger CPS after 24h. None of the particles at non-cytotoxic concentrations caused marked changes in lysosomal pH or destroyed lysosomal membrane integrity. At 24h of exposure, 20 nm CPS induced significant dilatation of the endosomal-lysosomal system and reduced activity of lysosomal sulfatases. After 72h, these alterations were less pronounced.

conclusionsDespite accumulation in lysosomes CPS induced only small changes in lysosomes. Upon longer contact, these changes are even less pronounced. The presented panel of assays may serve to identify effects on lysosomes also for other NPs.

Indexed as

Cathepsin BCell LineCell SurvivalEndothelial CellsHumansHydrogen-Ion ConcentrationIntracellular MembranesLysosomesNanoparticlesOxidative StressParticle SizePolystyrenesTime FactorsCathepsin BPolystyrenes

Identifiers

PMID22789069
PMCPMC3425083
OpenAlexW2143493410

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.