Fiche publication
Date publication
mai 2020
Journal
Small (Weinheim an der Bergstrasse, Germany)
Auteurs
Membres identifiés du Cancéropôle Est :
Dr BIANCO Alberto
Tous les auteurs :
Orecchioni M, Bordoni V, Fuoco C, Reina G, Lin H, Zoccheddu M, Yilmazer A, Zavan B, Cesareni G, Bedognetti D, Bianco A, Delogu LG
Lien Pubmed
Résumé
Considering the potential exposure to graphene, the most investigated nanomaterial, the assessment of the impact on human health has become an urgent need. The deep understanding of nanomaterial safety is today possible by high-throughput single-cell technologies. Single-cell mass cytometry (cytometry by time-of flight, CyTOF) shows an unparalleled ability to phenotypically and functionally profile complex cellular systems, in particular related to the immune system, as recently also proved for graphene impact. The next challenge is to track the graphene distribution at the single-cell level. Therefore, graphene oxide (GO) is functionalized with AgInS nanocrystals (GO-In), allowing to trace GO immune-cell interactions via the indium ( In) channel. Indium is specifically chosen to avoid overlaps with the commercial panels (>30 immune markers). As a proof of concept, the GO-In CyTOF tracking is performed at the single-cell level on blood immune subpopulations, showing the GO interaction with monocytes and B cells, therefore guiding future immune studies. The proposed approach can be applied not only to the immune safety assessment of the multitude of graphene physical and chemical parameters, but also for graphene applications in neuroscience. Moreover, this approach can be translated to other 2D emerging materials and will likely advance the understanding of their toxicology.
Mots clés
2D materials, CyTOF, biocompatibility, immune cells, safety
Référence
Small. 2020 May;16(21):e2000123
