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

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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]
Copyright of Scientific Reports is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Evaluation of the genotoxic and transformation potential induced by asbestos compared to cleavage fragments.
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  Data: <searchLink fieldCode="AR" term="%22La+Maestra%2C+Sebastiano%22">La Maestra, Sebastiano</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> Sebastiano.lamaestra@unige.it</i><br /><searchLink fieldCode="AR" term="%22Militello%2C+Gaia+M%2E%22">Militello, Gaia M.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Alberti%2C+Stefano%22">Alberti, Stefano</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Benvenuti%2C+Mirko%22">Benvenuti, Mirko</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gaggero%2C+Laura%22">Gaggero, Laura</searchLink><relatesTo>2</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Scientific+Reports%22">Scientific Reports</searchLink>. 1/28/2025, Vol. 15 Issue 1, p1-13. 13p.
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  Data: *<searchLink fieldCode="DE" term="%22CELL+transformation%22">CELL transformation</searchLink><br />*<searchLink fieldCode="DE" term="%22CHRYSOTILE%22">CHRYSOTILE</searchLink><br />*<searchLink fieldCode="DE" term="%22ASBESTOS%22">ASBESTOS</searchLink><br />*<searchLink fieldCode="DE" term="%22AMPHIBOLES%22">AMPHIBOLES</searchLink><br />*<searchLink fieldCode="DE" term="%22OXIDATIVE+stress%22">OXIDATIVE stress</searchLink><br />*<searchLink fieldCode="DE" term="%22LUNGS%22">LUNGS</searchLink>
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  Data: 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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  Data: <i>Copyright of Scientific Reports is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Text: English
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              Text: 1/28/2025
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