Effects of Inhaled Budesonide in Early Phase on Airway Inflammation and Interleukin-6/Signal Transducers and Activators of Transcription 3 Signaling Pathway in Asthmatic Mouse
- VernacularTitle:布地奈德早期干预对哮喘小鼠呼吸道炎症和白细胞介素-6/信号转导与转录激活因子3信号通路的影响
- Author:
yan-ming, LIU
;
guang-min, NONG
;
shu-quan, LI
- Publication Type:Journal Article
- Keywords:
asthma;
inhaled corticosteroid;
airway inflammation;
interleukin-6;
signal transducers and activators of transcription 3
- From:Journal of Applied Clinical Pediatrics
2006;0(16):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the effects of inhaled budesonide (BUD) in early phase on the airway inflammation in asthmatic mouse,and its effects on the IL-6/signal transducers and activators of transcription 3(IL-6/STAT3 )signaling pathway in airway,explore the therapeutic target of BUD.Methods Forty Balb/c mice were randomly divided into control group(n=10),asthma group(n=10),BUD group(n=10) and AG490 group(n=10).The mice were sensitized with ovalbumin to establish the asthmatic model.The histological changes were evaluated by HE staining.The levels of IL-4,IL-5 and IL-6 in bronchoalveolar lavage fluid (BALF) were measured by enzyme-linked immunosorbent assay.Lung tissue extracts were analyzed for total STAT3 and phospho-STAT3(p-STAT3) by Western blot.Results 1.The levels of inflammatory cells,EOS%, IL-4,IL-5 and IL-6 levels in the BALF in BUD group were significantly lower than those in asthma group (Pa0.05).Conclusions Inhaled corticosteroid can apparently ameliorate airway inflammation in early phase in asthmatic mouse model,and it can downregulate the expressions of IL-6 and STAT3,inhibit the signal-transduction pathway of STAT3.The IL-6 /STAT3 signaling pathway of airway may be one of the potential therapeutic targets of inhaled corticosteroid.
