Amphiphilic γ-PGA nanoparticles administered on rat middle ear mucosa produce adjuvant-like immunostimulation in vivo.
Acta Otolaryngol
; 134(10): 1034-41, 2014 Oct.
Article
em En
| MEDLINE
| ID: mdl-25220726
ABSTRACT
CONCLUSION:
Amphiphilic biodegradable nanoparticles (NPs) composed of poly(γ-glutamic acid) conjugated with L-phenylalanine ethylester (γ-PGA-Phe NPs) applied on the rat middle ear mucosa produce an inflammatory type 1 response. The observation is of relevance for the use of γ-PGA-Phe NPs as a concomitant antigen delivery system and adjuvant measure in the context of vaccinations.OBJECTIVES:
To examine effects of topical mucosal administration of γ-PGA-Phe NPs as a potentially combined antigen delivery system and adjuvant.METHODS:
γ-PGA-Phe NPs were administered on rat middle ear mucosa in a sham-controlled design and the response was monitored, focusing on soluble markers in mucosal surface liquids and on overall histopathology.RESULTS:
γ-PGA-Phe NPs produced a dose- and time-dependent inflammatory response characterized by generation of proinflammatory cytokines (IL-1α, IL-1ß, IL-6, MIP-1α, and TNF-α) and associated histopathological changes.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ácido Poliglutâmico
/
Imunização
/
Orelha Média
Tipo de estudo:
Diagnostic_studies
Limite:
Animals
Idioma:
En
Revista:
Acta Otolaryngol
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Suécia