Fiche publication
Date publication
novembre 2022
Journal
Toxicology
Auteurs
Membres identifiés du Cancéropôle Est :
Pr BEDUNEAU Arnaud
Tous les auteurs :
Stalder T, Zaiter T, El-Basset W, Cornu R, Martin H, Diab-Assaf M, Béduneau A
Lien Pubmed
Résumé
The gastrointestinal tract represents one of primary routes of entry for many nanomaterials. Their size in the nanometer range and their high surface area confer them very interesting properties as food additives. They are used as texturizing, opacifying or anticaking agents. Food packaging contains nanomaterials with antimicrobial properties. Humans are also orally exposed to nanoparticles (NPs) present in the air or drinking water. Ingested NPs can then reach the intestinal lumen and interact with the gastrointestinal fluids, microbiota, mucus layers and the epithelial barrier, allowing a potential translocation. The toxicological profile of ingested NPs is still unclear due to their variety in terms of composition and physicochemical properties as well as the limited number of investigations. Their unique properties related to their small size could however affect the intestinal ecosystem but also the physical and functional properties of the intestinal barrier. This review focuses on the fate of ingested organic and inorganic NPs in the intestinal lumen and their toxicity on the microbiota and epithelial cells.
Mots clés
Cytotoxicity, Genotoxicity, Intestinal cells, Intestinal permeability, Microbiota, Nanoparticles
Référence
Toxicology. 2022 11;481:153353