The widespread use of nano-biomaterials (NBMs) has increased the chance of human exposure. Although ingestion is one of the major routes of exposure to NBMs, it is not thoroughly studied to date. NBMs are expected to be dramatically modified following the transit into the oral-gastric-intestinal (OGI) tract. How these transformations affect their interaction with intestinal cells is still poorly understood. NBMs of different chemical nature-lipid-surfactant nanoparticles (LSNPs), carbon nanoparticles (CNPs), surface modified Fe3O4 nanoparticles (FNPs) and hydroxyapatite nanoparticles (HNPs)-were treated in a simulated human digestive system (SHDS) and then characterised. The biological effects of SHDS-treated and untreated NBMs were evaluated on primary (HCoEpiC) and immortalised (Caco-2, HCT116) epithelial intestinal cells and on an intestinal barrier model.

Changes of physico-chemical properties of nano-biomaterials by digestion fluids affect the physiological properties of epithelial intestinal cells and barrier models

Antonello, Giulia;Marucco, Arianna;Gazzano, Elena;Barbero, Francesco;Baldi, Giovanni;Bergamaschi, Enrico;Fenoglio, Ivana
;
Riganti, Chiara
2022

Abstract

The widespread use of nano-biomaterials (NBMs) has increased the chance of human exposure. Although ingestion is one of the major routes of exposure to NBMs, it is not thoroughly studied to date. NBMs are expected to be dramatically modified following the transit into the oral-gastric-intestinal (OGI) tract. How these transformations affect their interaction with intestinal cells is still poorly understood. NBMs of different chemical nature-lipid-surfactant nanoparticles (LSNPs), carbon nanoparticles (CNPs), surface modified Fe3O4 nanoparticles (FNPs) and hydroxyapatite nanoparticles (HNPs)-were treated in a simulated human digestive system (SHDS) and then characterised. The biological effects of SHDS-treated and untreated NBMs were evaluated on primary (HCoEpiC) and immortalised (Caco-2, HCT116) epithelial intestinal cells and on an intestinal barrier model.
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Biotransformation; Caco-2; Gastro-intestinal barrier; HCT116; HCoEpiC; In vitro simulated digestion; Inflammation; Nano-biomaterials; Permeability; Toxicity; Caco-2 Cells; Digestion; Humans; Hydroxyapatites; Liposomes; Nanoparticles; Permeability; Tight Junctions; Biocompatible Materials; Intestinal Mucosa
Antonello, Giulia; Marucco, Arianna; Gazzano, Elena; Kainourgios, Panagiotis; Ravagli, Costanza; Gonzalez-Paredes, Ana; Sprio, Simone; Padín-González, Esperanza; Soliman, Mahmoud G; Beal, David; Barbero, Francesco; Gasco, Paolo; Baldi, Giovanni; Carriere, Marie; Monopoli, Marco P; Charitidis, Costas A; Bergamaschi, Enrico; Fenoglio, Ivana; Riganti, Chiara
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1870859
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