Vit. artikkel


  • 2023

The establishment of reliable and robust in vitro models for hazard assessment, a prerequisite for moving away from animal testing, requires the evaluation of model transferability and reproducibility. Lung models that can be exposed via the air, by means of an air-liquid interface (ALI) are promising in vitro models for evaluating the safety of nanomaterials (NMs) after inhalation exposure. We performed an inter-laboratory comparison study to evaluate the transferability and reproducibility of a lung model consisting of the human bronchial cell line Calu-3 as a monoculture and, to increase the physiologic relevance of the model, also as a co-culture with macrophages (either derived from the THP-1 monocyte cell line or from human blood monocytes). The lung model was exposed to NMs using the VITROCELL® Cloud12 system at physiologically relevant dose levels. Results Overall, the results of the 7 participating laboratories are quite similar. After exposing Calu-3 alone and Calu-3 co-cultures with macrophages, no effects of lipopolysaccharide (LPS), quartz (DQ12) or titanium dioxide (TiO2) NM-105 particles on the cell viability and barrier integrity were detected. LPS exposure induced moderate cytokine release in the Calu-3 monoculture, albeit not statistically significant in most labs. In the co-culture models, most laboratories showed that LPS...

Braakhuis, Hedwig M.; Gremmer, Eric R.; Bannuscher, Anne; Drasler, Barbara; Keshavan, Sandeep; Rothen-Rutishauser, Barbara; Birk, Barbara; Verlohner, Andreas; Landsiedel, Robert; Meldrum, Kirsty; Doak, Shareen H.; Clift, Martin J.D.; Samulin-Erdem, Johanna Maria; Foss, Oda Astrid Haarr; Zienolddiny, Shanbeh; Serchi, Tommaso; Moschini, Elisa; Weber, Pamina; Burla, Sabina; Kumar, Pramod; Schmid, Otmar; Zwart, Edwin; Vermeulen, Jolanda P.; Vandebriel, Rob J.
NanoImpact 31
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