Gold nanoparticles approach to detect chondroitin sulphate and hyaluronic acid urothelial coating

Guelfi, Gabriella, Stefanetti, Valentina, Zampini, Danilo, Oommen, Oommen P. ORCID: https://orcid.org/0000-0003-2768-0133, Breccia, Gabriele, Dall'Aglio, Cecilia, Arcelli, Rolando, Cochetti, Giovanni, Boni, Andrea and Mearini, Ettore 2017. Gold nanoparticles approach to detect chondroitin sulphate and hyaluronic acid urothelial coating. Scientific Reports 7 (1) , 10355. 10.1038/s41598-017-09872-0

Full text not available from this repository.

Abstract

This study investigated the location of hyaluronic acid (HA)-A nd chondroitin sulphate (CS)-coated gold nanoparticles in rabbit bladder and evaluated gene expression of CD44, RHAMM and ICAM-1 receptors involved in HA and CS transport into the cell. Gold nanoparticles were synthesised by reduction of gold salts with HA or CS to form HA-AuNPs and CS-AuNPs. Bladder samples were incubated with CS-AuNPs and HA-AuNPs or without glycosaminoglycans. Transmission electron microscopy, optic microscopy and scanning electron microscopy were used to determine the location of the synthesised AuNPs. Real-time PCR was used to analyse expression of urothelial cell receptors CD44, RHAMM, ICAM-1, after ex vivo administration of CS-AuNPs and HA-AuNPs. We showed that HA-AuNPs and CS-AuNPs were located in the cytoplasm and tight junctions of urothelial umbrella cells; this appearance was absent in untreated bladders. There were no significant differences in gene expression levels for CD44, RHAMM and ICAM-1 receptors in treated versus control bladder tissues. In conclusion, we clearly showed the presence of exogenous GAGs in the bladder surface and the tight junctions between umbrella cells, which is important in the regeneration pathway of the urothelium. The GAGs-AuNPs offer a promising approach to understanding the biophysical properties and imaging of urothelial tissue.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Pharmacy
Publisher:	Nature Research
ISSN:	2045-2322
Last Modified:	21 Oct 2024 14:46
URI:	https://orca.cardiff.ac.uk/id/eprint/172993

Actions (repository staff only)

Edit Item