The immunotoxicity of graphene oxides and the effect of PVP-coating.
Biomaterials
; 34(21): 5254-61, 2013 Jul.
Article
en En
| MEDLINE
| ID: mdl-23566800
ABSTRACT
Graphene oxide (GO) immunotoxicity is not clarified well up to date. Herein we reported the effects of GOs with and without polyvinylpyrrolidone (PVP) coating on human immune cells such as dendritic cells (DCs), T lymphocytes and macrophages. Human immune cells such as dendritic cells (DCs), T lymphocytes and macrophages were isolated from health donated bloods, PVP-coating GO (PVP-GO) exhibited lower immunogenicity compared with pure GO on the aspect of inducing differentiation and maturation of dendritic cells (DCs), the levels of secreted TNF-α and IL-1ß had no obvious difference between two groups, yet the secretion of IL-6 remained in PVP-coating GO group. In addition, PVP-coating GO delayed significantly the apoptotic process of T lymphocytes, at the same time, and exhibited anti-phagocytosis ability against macrophages and markedly enhanced the physiological activity of macrophages. In conclusion, PVP-coating GO possesses good immunological biocompatibility and immunoenhancement effects in vitro, and is likely to be an available candidate of immunoadjuvant in the future.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Óxidos
/
Inmunotoxinas
/
Povidona
/
Materiales Biocompatibles Revestidos
/
Grafito
Límite:
Humans
Idioma:
En
Revista:
Biomaterials
Año:
2013
Tipo del documento:
Article