Evaluation of the genotoxic and transformation potential induced by asbestos compared to cleavage fragments.

Bibliographic Details
Title: Evaluation of the genotoxic and transformation potential induced by asbestos compared to cleavage fragments.
Authors: La Maestra, Sebastiano1 (AUTHOR) Sebastiano.lamaestra@unige.it, Militello, Gaia M.2 (AUTHOR), Alberti, Stefano3 (AUTHOR), Benvenuti, Mirko1 (AUTHOR), Gaggero, Laura2 (AUTHOR)
Source: Scientific Reports. 1/28/2025, Vol. 15 Issue 1, p1-13. 13p.
Subject Terms: *CELL transformation, *CHRYSOTILE, *ASBESTOS, *AMPHIBOLES, *OXIDATIVE stress, *LUNGS
Abstract: The World Health Organization has confirmed that asbestos fibres are carcinogenic, claiming that asbestos-related diseases should be eradicated worldwide. Actinolite, amosite, anthophyllite, chrysotile, crocidolite, and tremolite are regulated asbestiform mineral phases. However, in nature, asbestos minerals occur either in a fibrous and asbestiform (original morphology characterized by high length-to-width ratio and provided of high tensile strength and flexibility) or fibrous but not asbestiform appearance. This study used human epithelial cancer cells (A549) and a mouse fibroblast cell line (Balb/c 3T3) to compare the genotoxic and carcinogenic effects of a sample of amphibole asbestos with samples of fibrous not asbestiform named cleavage fragments (CV) obtained by grinding non-asbestiform amphiboles. The results showed that exposure of alveolar lung cells to asbestos and elongated mineral particles, in the habit of cleavage fragments (CF) derived from the grinding of non-asbestiform amphiboles and serpentines, causes cytotoxic effects, oxidative stress and genotoxic damage. Moreover, CF obtained from an actinolite schist induces a transformation effect in the Balb/c 3T3 model. Together, these findings highlight the importance of considering CF as a potential threat to human health since it can cause genotoxic damage by triggering cellular transformation processes that overlap with the mechanisms involved in the carcinogenesis processes of asbestos. [ABSTRACT FROM AUTHOR]
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ISSN:20452322
DOI:10.1038/s41598-025-86325-z
Published in:Scientific Reports
Language:English