Evidence map›Paper›PMID 24529161›Full record

ArticleParticle and fibre toxicology2014

Size-dependent cytotoxicity of silver nanoparticles in human lung cells: the role of cellular uptake, agglomeration and Ag release.

Anda R Gliga, Sara Skoglund, Inger Odnevall Wallinder, Bengt Fadeel, Hanna L Karlsson

Open access · goldAbstract read
In one paragraph

Article in Particle and fibre toxicology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 342 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
342citing papers in PubMed, 3 pooled it
47.6field-weighted citation impact, top 1% 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

342 citing papers in PubMed, 3 syntheses or guidelines pooled it, 1,055 citations in OpenAlex.

  1. Analyzing Molecular Determinants of Nanodrugs' Cytotoxic Effects.International journal of molecular sciences · 2025
    Pooled it
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  4. Review
  5. Green Synthesis Characterization and Evaluation ofMolecules (Basel, Switzerland) · 2026
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  8. KCa3.1 mediates radioresistance of silver nanoparticles in human glioblastoma cells.Pflugers Archiv : European journal of physiology · 2026
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282 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 2 institutions in 1 country.

Anda R Gliga
Sara Skoglund
Inger Odnevall Wallinder
Bengt Fadeel
Hanna L KarlssonDivision of Molecular Toxicology, Institute of Environmental Medicine, Karolinska Institutet, SE-171 77 Stockholm, Sweden. hanna.l.karlsson@ki.se.
Karolinska Institutet · SEKTH Royal Institute of Technology · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSilver nanoparticles (AgNPs) are currently one of the most manufactured nanomaterials. A wide range of toxicity studies have been performed on various AgNPs, but these studies report a high variation in toxicity and often lack proper particle characterization. The aim of this study was to investigate size- and coating-dependent toxicity of thoroughly characterized AgNPs following exposure of human lung cells and to explore the mechanisms of toxicity.

methodsBEAS-2B cells were exposed to citrate coated AgNPs of different primary particle sizes (10, 40 and 75 nm) as well as to 10 nm PVP coated and 50 nm uncoated AgNPs. The particle agglomeration in cell medium was investigated by photon cross correlation spectroscopy (PCCS); cell viability by LDH and Alamar Blue assay; ROS induction by DCFH-DA assay; genotoxicity by alkaline comet assay and γH2AX foci formation; uptake and intracellular localization by transmission electron microscopy (TEM); and cellular dose as well as Ag release by atomic absorption spectroscopy (AAS).

resultsThe results showed cytotoxicity only of the 10 nm particles independent of surface coating. In contrast, all AgNPs tested caused an increase in overall DNA damage after 24 h assessed by the comet assay, suggesting independent mechanisms for cytotoxicity and DNA damage. However, there was no γH2AX foci formation and no increased production of intracellular reactive oxygen species (ROS). The reasons for the higher toxicity of the 10 nm particles were explored by investigating particle agglomeration in cell medium, cellular uptake, intracellular localization and Ag release. Despite different agglomeration patterns, there was no evident difference in the uptake or intracellular localization of the citrate and PVP coated AgNPs. However, the 10 nm particles released significantly more Ag compared with all other AgNPs (approx. 24 wt% vs. 4-7 wt%) following 24 h in cell medium. The released fraction in cell medium did not induce any cytotoxicity, thus implying that intracellular Ag release was responsible for the toxicity.

conclusionsThis study shows that small AgNPs (10 nm) are cytotoxic for human lung cells and that the toxicity observed is associated with the rate of intracellular Ag release, a 'Trojan horse' effect.

Indexed as

Cell LineCell SurvivalColoring AgentsComet AssayCulture MediaDNA DamageEndocytosisEpithelial CellsFluorescent Antibody TechniqueHumansL-Lactate DehydrogenaseLungMetal NanoparticlesMicroscopy, Electron, TransmissionOxazinesParticle SizeColoring AgentsCulture MediaL-Lactate DehydrogenaseOxazinesReactive Oxygen SpeciesresazurinSilverXanthenes

Identifiers

PMID24529161
PMCPMC3933429
OpenAlexW2161946971

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.