Evidence of size-dependent effect of silica micro- and nano-particles on basal and specialized monocyte functions.
Ther Deliv
; 8(12): 1035-1049, 2017 Dec.
Article
en En
| MEDLINE
| ID: mdl-29125067
AIM: To analyze the effect of silica particles on monocyte/macrophage functions. MATERIALS & METHODS: Silica micro- and nanoparticles were obtained by the Stöber method. Their effect on monocyte/macrophage proliferation, activation, membrane integrity and metabolic activity were determined. RESULTS: Silica particles inhibit cell proliferation while 10 nm nanoparticles (NPs) did not affect it. Similarly, silica particles induced strong cell activation. However, 10 nm NPs do not alter IL-12 or nitrite levels. Furthermore, bigger NPs and microparticles increase cell membrane damage and reduce the number of living cells but smallest NPs (10 and 240 nm) did not. CONCLUSION: Cell activation properties of silica particles could be useful tools for immune stimulation therapy, while 10 nm NPs would be suitable for molecule transportation.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Dióxido de Silicio
/
Nanopartículas
Límite:
Humans
Idioma:
En
Revista:
Ther Deliv
Año:
2017
Tipo del documento:
Article
País de afiliación:
Argentina
Pais de publicación:
Reino Unido