Journal
MINERALS
Volume 12, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/min12080988
Keywords
erionite; mesolite; thomsonite; fibrous zeolites; cell lines; toxicity
Funding
- Fibers a Multidisciplinary Mineralogical, CrystalChemical and Biological Project to Amend the Paradigm of Toxicity and Cancerogenicity of Mineral Fibers (PRIN: PROGETTI DI RICERCA DI RILEVANTE INTERESSE NAZIONALE-Bando, 2017) [20173X8WA4]
- Department of Pure and Applied Sciences of the University of Urbino Carlo Bo
- INAIL-BRIC ID60 Project
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This study aimed to investigate the toxicity effects of selected fibrous zeolites on two different cellular models and found cytotoxic effects of erionite in both models. Additionally, the study revealed different toxic behaviors of mesolite and thomsonite fibers, suggesting other potential mechanisms of action.
An emerging problem for human health is the exposure to non-regulated mineral fibers with an asbestos-like crystal habit, particularly fibrous zeolites. This study aimed to determine if and how selected fibrous zeolites (erionite, mesolite, and thomsonite) induce toxicity effects on two different in vitro cellular models, the adherent murine hippocampal (HT22) and human immortalized T lymphocyte (Jurkat) cell lines. Before proceeding with the cellular tests, the three zeolite samples were investigated using scanning electron microscopy-energy-dispersive spectroscopy and X-ray powder diffraction techniques. The cells were treated with 0.1 mu M and 1 mu M of fibrous erionite, mesolite, and thomsonite for 12, 24, and 48 h. Results showed a cytotoxic effect of erionite in both cellular models and revealed different toxic behaviors of the mesolite and thomsonite fibers, suggesting other potential mechanisms of action. The outcome of this study would be a first step for further research on fine biochemical interactions of zeolite fibers with cells and future in vivo investigations.
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