Effects of NS1619 on airway remodeling and expression of α-SMA and PDGF-BB in asthmatic mice
10.3969/j.issn.1000-3606.2014.08.019
- VernacularTitle:NS1619干预对哮喘小鼠气道重塑及气道平滑肌肌动蛋白、血清血小板衍生生长因子-BB表达的影响
- Author:
Can HONG
;
Yi WU
;
Zhongxiu ZHAO
- Publication Type:Journal Article
- Keywords:
NS1619;
asthma;
airway remodeling;
mouse
- From:
Journal of Clinical Pediatrics
2014;(8):772-775
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the mechanism of NS1619 on airway remodeling in asthmatic mice. Methods A total of 24 healthy female BALB/c mice were randomly divided into 3 groups:the control group, the oval albumin (OVA) group (the asthma group) and the NS1619 group (the intervention group), 8 mice in each group. Asthma group was induced with OVA, chal-lenged by continuous inhalation with 5%OVA from day 19 to 23, then changed to 3 times per week from day 24 to 55. Interven-tion group was inhaled with NS1619 (30μmol/L) before OVA. Control group was given with normal saline. The thickness of air-way smooth muscle and the area of collagen deposition in lung tissue slices were observed by HE and Masson staining, measured by a computer assisted image analysis system. The concentration ofα-smooth muscle actin (α-SMA) in cells was detected by immunohistochemistry. The expression of platelet derived grouth factor-BB, PDGF-BB (PDGF-BB) in serum was measured by immunosorbent assay. Results Compared with the asthma group, the pathologic changes of lung tissue, the thickness of airway smooth muscle and collagen deposition in the group treated with NS1619 were signiifcantly decreased (P<0.05). Compared with the asthma group, the levels ofα-SMA in cells and PDGF-BB in serum in NS1619 treated group were signiifcantly decreased (P<0.05). Conclusions NS1619 partly inhibited airway remodeling in asthmatic mice, partially by down-regulating the expres-sion level ofα-SMA and PDGF-BB.
