Increased expression of dectin-1 in nasal polyps.
Am J Otolaryngol
; 34(3): 183-7, 2013.
Article
em En
| MEDLINE
| ID: mdl-23332664
ABSTRACT
PURPOSE:
A fungal etiology has been proposed to underlie severe nasal polyps (NP). Dectin-1 is an innate immune pattern recognition receptor which is involved in the recognition of some pathogenic fungi. We investigated the Dectin-1 levels in NP in order to evaluate the implication of such expression with respect to the development of NP. MATERIALS ANDMETHODS:
Normal inferior turbinate tissues were obtained from forty patients undergoing surgery for augmentation rhinoplasty. Nasal polyp tissues were obtained from 53 patients who underwent endoscopic sinus surgery for chronic polypoid rhinosinusitis. Real-time polymerase chain reaction and Western blot analysis were performed to evaluate the mRNA and protein level of Dectin-1, respectively. ELISA was carried out to evaluate the cytokine production (IL-4, IL-5, IL-10, and TNF-α) in NP.RESULTS:
Real-time polymerase chain reaction and Western-blot analysis showed that Dectin-1 expression in NP was increased compared with that in normal nasal inferior turbinate tissues. ELISA results suggest that the local expression of type-1 and type-2 inflammatory cytokine is skewed toward type-2 inflammatory cytokine in NP.CONCLUSIONS:
These results suggest that Dectin-1 may play a role in the development of NP, and the production of Dectin-1, IL-4 and IL-5 (type-2 cytokines), may mainly participate in the inflammatory reaction in NP.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Pólipos Nasais
/
Lectinas Tipo C
Limite:
Adult
/
Female
/
Humans
/
Male
Idioma:
En
Revista:
Am J Otolaryngol
Ano de publicação:
2013
Tipo de documento:
Article