Cited by 152Nanoparticles: synthesis and applicationsOccupational and environmental lung diseasesImmunotoxicology and immune responses

An in vitro alveolar macrophage assay for predicting the short-term inhalation toxicity of nanomaterials

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Wiemann, Martin, Vennemann, Antje, Sauer, Ursula G., Wiench, Karin, Ma-Hock, Lan, Landsiedel, Robert·2016·Journal of Nanobiotechnology

Abstract

BACKGROUND: Most in vitro studies investigating nanomaterial pulmonary toxicity poorly correlate to in vivo inhalation studies. Alveolar macrophages (AMs) play an outstanding role during inhalation exposure since they effectively clear the alveoli from particles. This study addresses the applicability of an in vitro alveolar macrophage assay to distinguish biologically active from passive nanomaterials. METHODS: Rat NR8383 alveolar macrophages were exposed to 18 inorganic nanomaterials, covering AlOOH, BaSO4, CeO2, Fe2O3, TiO2, ZrO2, and ZnO NMs, amorphous SiO2 and graphite nanoplatelets, and two nanosized organic pigments. ZrO2 and amorphous SiO2 were tested without and with surface functionalization. Non-nanosized quartz DQ12 and corundum were used as positive and negative controls, respectively. The test materials were incubated with the cells in protein-free culture medium. Lactate dehydrogenase, glucuronidase, and tumour necrosis factor alpha were assessed after 16 h. In parallel, H2O2 was assessed after 1.5 h. Using the no-observed-adverse-effect concentrations (NOAECs) from available rat short-term inhalation studies (STIS), the test materials were categorized as active (NOAEC < 10 mg/m(3)) or passive. RESULTS: In vitro data reflected the STIS categorization if a particle surface area-based threshold of <6000 mm(2)/mL was used to determine the biological relevance of the lowest observed significant in vitro effects. Significant effects that were recorded above this threshold were assessed as resulting from test material-unspecific cellular 'overload'. Test materials were assessed as active if ≥2 of the 4 in vitro parameters undercut this threshold. They were assessed as passive if 0 or 1 parameter was altered. An overall assay accuracy of 95 % was achieved. CONCLUSIONS: The in vitro NR8383 alveolar macrophage assay allows distinguishing active from passive nanomaterials. Thereby, it allows determining whether in vivo short-term inhalation testing is necessary for hazard assessment. Results may also be used to group nanomaterials by biological activity. Further work should aim at validating the assay.

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Crossref · 10.1186/s12951-016-0164-2

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  • The biological responses of NR8383 cells to nanomaterials are well documented and correlate with in vivo outcomes, supporting their use as a predictive model.

    “The biological responses of NR8383 cells to nanomaterials are well documented and have been shown to correlate with in vivo outcomes [28]. This supports their use as a predictive model and contributes to the reduction and refinement of animal experiments.”
  • Human alveolar macrophages are larger than rat alveolar macrophages, with mean diameters of approximately 21.2 ± 0.3 μm and 13.1 ± 2.5 μm, respectively.

    “On average, human alveolar macrophages are larger than rat alveolar macrophages, with mean diameters of approximately 21.2 ± 0.3 μm and 13.1 ± 2.5 μm, respectively [28, 45].”
  • At the stalled stage, the internalized portion of the fibre measured ca. 26 μm, roughly twice the size of a typical NR8383 macrophage in its detached and rounded state (12.5-12.8 μm).

    “At this stage, the internalized portion of the fibre measured ca. 26 μm, which is roughly twice the size of a typical NR8383 macrophage in its detached and rounded state (12.5 –12.8 μm) [28].”

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Research works printed but not linked: 6

  1. [1]Regulation (EC) No 1907/2006 of the European Parliament and of the Council of 18 December 2006 concerning the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH), establishing a European Chemicals Agency, amending Directive 1999/45/EC and repealing Council Regulation (EEC) No 793/93 and Commission Regulation (EC) No 1488/94 as well as Council Directive 76/769/EEC and Commission Directives 91/155/EEC, 93/67/EEC, 93/105/EC and 2000/21/EC. OJ L. 2006;396:1.
  2. [2]EU Commission recommendation on the definition of nanomaterial. OJ L 2011;275:38.
  3. [4]Directive 2010/63/EU of the European Parliament and of the Council of 22 September 2010 on the protection of animals used for scientific purposes. OJ L. 2010;276:33.
  4. [55]Rehn B, Rehn S, Bruch J. Ein neues in vitro-Prüfkonzept (Vektorenmodell) zum biologischen Screening und Monitoring der Lungentoxizität von Stäuben. Gefahrstoffe—Reinhaltung der Luft. 1999;59:181–188.
  5. [91]Schippritt D Lipinski HG Wiemann M Wohlleben W Kuhlbusch T Schnekenburger J Lehr C-M Measurement of nanoparticle uptake by alveolar macrophages: A new approach based on quantitative image analysis Nanomaterials Throughout their Lifecycles: Safety 2014 Boca Raton Human Hazard and Exposure. Taylor & Francis
  6. [114]Landsiedel R, Schnekenburger J, Alessandrini F, Buesen R, Haase A, Luch A, Ma-Hock L, Wiemann M. nanoGEM final project report (Gemeinsamer Abschlussbericht nanoGEM). Chapter 6. Work package 4 (AP4): Nanoparticle toxicology: Material properties and effects. 2014. doi:10.2314/GBV:82774322X(project report in German). · DOI

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Authors
Wiemann, M., Vennemann, A., Sauer, U. G., Wiench, K., Ma-Hock, L., & Landsiedel, R.
Affiliations
BASF (Germany) (DE)
Corresponding author
Wiemann, Martin
Venue
Journal of Nanobiotechnology
Published
2016-03-05
Volume
14
Issue
1
Pages
16-16
ISSN
1477-3155 (ISSN-L)
OpenAlex
W2290248210
Cited by
152
References
120
Citations by year
2026: 6 · 2025: 13 · 2024: 12 · 2023: 12 · 2022: 18 · 2021: 14 · 2020: 18 · 2019: 18 · 2018: 17 · 2017: 18 · 2016: 6
FWCI
8.76
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Nanobiotechnology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Funders
Bundesministerium für Bildung und Forschung (03X0105, 0315483A)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Nanoparticles: synthesis and applications
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Occupational and environmental lung diseases
  • Life Sciences › Immunology and Microbiology › Immunology › Immunotoxicology and immune responses
Keywords
alveolar macrophages, NR8383 cells, in vitro-in vivo correlation, zirconia nanoparticles, amorphous silica nanoparticles, surface functionalization, hazard assessment, cytotoxicity, oxidative stress
MeSH terms
Animals, Cell Line, Ferric Compounds, Graphite, Hydrogen Peroxide, Lung, Particle Size, Silicon Dioxide, Titanium, Macrophages, Alveolar, Inhalation Exposure, Nanostructures, Rats

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