Lung recovery from DNA damage induced by graphene oxide is dependent on size, dose and inflammation profile

[Background] A key aspect of any new material safety assessment is the evaluation of their in vivo genotoxicity. Graphene oxide (GO) has been studied for many promising applications, but there are remaining concerns about its safety profile, especially after inhalation. Herein we tested whether GO l...

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Detalles Bibliográficos
Autores: Visani de Luna, Luis Augusto, Loret, Thomas, Fordham, Alexander, Arshad, Atta, Drummond, Matthew, Dodd, Abbie, Lozano, Neus, Kostarelos, Kostas, Bussy, Cyrill
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/287592
Acceso en línea:http://hdl.handle.net/10261/287592
Access Level:acceso abierto
Palabra clave:Genotoxicity
γ-H2AX
Graphene oxide
Toxicology
Inflammation
Lungs
Descripción
Sumario:[Background] A key aspect of any new material safety assessment is the evaluation of their in vivo genotoxicity. Graphene oxide (GO) has been studied for many promising applications, but there are remaining concerns about its safety profile, especially after inhalation. Herein we tested whether GO lateral dimension, comparing micrometric (LGO) and nanometric (USGO) GO sheets, has a role in the formation of DNA double strand breaks in mouse lungs. We used spatial resolution and differential cell type analysis to measure DNA damages in both epithelial and immune cells, after either single or repeated exposure.