Evidence map›Paper›PMID 21306632›Full record

ArticleParticle and fibre toxicology2011

Problems and challenges in the development and validation of human cell-based assays to determine nanoparticle-induced immunomodulatory effects.

Gertie J Oostingh, Eudald Casals, Paola Italiani, Renato Colognato, René Stritzinger, Jessica Ponti, Tobias Pfaller, Yvonne Kohl, Daniëlla Ooms, Flavia Favilli and 8 more

Open access · goldAbstract read
In one paragraph

Article in Particle and fibre toxicology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 1 pooled it
8.6field-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

54 citing papers in PubMed, 1 synthesis or guideline pooled it, 200 citations in OpenAlex.

  1. Pooled it
  2. Advances in Cytotoxicity Testing: From In Vitro Assays to In Silico Models.International journal of molecular sciences · 2025
    Review
  3. Review
  4. Review
  5. Review
  6. Toxicity evaluation of silica nanoparticles for delivery applications.Drug delivery and translational research · 2023
    Review
  7. Nanoceria as Safe Contrast Agents for X-ray CT Imaging.Nanomaterials (Basel, Switzerland) · 2023
    Article
  8. Article
  9. Article
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  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
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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

18 authors at 8 institutions in 5 countries.

Gertie J OostinghDepartment of Molecular Biology, University of Salzburg, 5020 Salzburg, Austria. geja.oostingh@sbg.ac.at
Eudald Casals
Paola Italiani
Renato Colognato
René Stritzinger
Jessica Ponti
Tobias Pfaller
Yvonne Kohl
Daniëlla Ooms
Flavia Favilli
Hilde Leppens
Davide Lucchesi
François Rossi
Inge Nelissen
Hagen Thielecke
Victor F Puntes
Albert Duschl
Diana Boraschi
University of Salzburg · ATFlemish Institute for Technological Research · BEJoint Research Centre · ITFraunhofer Institute for Biomedical Engineering · DEInstitute of Biomedical Technologies · ITNational Research Council · ITInstitució Catalana de Recerca i Estudis Avançats · ESInstitut Català de Nanociència i Nanotecnologia · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWith the increasing use of nanomaterials, the need for methods and assays to examine their immunosafety is becoming urgent, in particular for nanomaterials that are deliberately administered to human subjects (as in the case of nanomedicines). To obtain reliable results, standardised in vitro immunotoxicological tests should be used to determine the effects of engineered nanoparticles on human immune responses. However, before assays can be standardised, it is important that suitable methods are established and validated.

resultsIn a collaborative work between European laboratories, existing immunological and toxicological in vitro assays were tested and compared for their suitability to test effects of nanoparticles on immune responses. The prototypical nanoparticles used were metal (oxide) particles, either custom-generated by wet synthesis or commercially available as powders. Several problems and challenges were encountered during assay validation, ranging from particle agglomeration in biological media and optical interference with assay systems, to chemical immunotoxicity of solvents and contamination with endotoxin.

conclusionThe problems that were encountered in the immunological assay systems used in this study, such as chemical or endotoxin contamination and optical interference caused by the dense material, significantly affected the data obtained. These problems have to be solved to enable the development of reliable assays for the assessment of nano-immunosafety.

Indexed as

Metal NanoparticlesAnimalsBiocompatible MaterialsBiological AssayCellsCells, CulturedHumansImmunologic FactorsInterleukin-8Promoter Regions, GeneticReproducibility of ResultsSolventsBiocompatible MaterialsImmunologic FactorsInterleukin-8Solvents

Identifiers

PMID21306632
PMCPMC3045340
OpenAlexW2153139782

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.