Comparison of TNF antagonism by etanercept and dexamethasone on airway epithelium and remodeling in an experimental model of asthma

被引:29
作者
Yilmaz, Ozge [1 ]
Karaman, Meral [2 ]
Bagriyanik, H. Alper [3 ]
Firinci, Fatih [4 ]
Kiray, Muge [5 ]
Turkeli, Ahmet [1 ]
Karaman, Ozkan [4 ]
Yuksel, Hasan [1 ]
机构
[1] Celal Bayar Univ, Fac Med, Dept Pediat Allergy & Pulmonol, Manisa, Turkey
[2] Dokuz Eylul Univ, Fac Med, Multidisciplinary Lab, Izmir, Turkey
[3] Dokuz Eylul Univ, Fac Med, Dept Histol & Embryol, Izmir, Turkey
[4] Dokuz Eylul Univ, Fac Med, Dept Pediat Allergy & Immunol, Izmir, Turkey
[5] Dokuz Eylul Univ, Fac Med, Dept Physiol, Izmir, Turkey
关键词
Mouse model of asthma; Remodeling; Inflammation; Tumor necrosis factor; Steroid; TUMOR-NECROSIS-FACTOR; SMOOTH-MUSCLE; FACTOR-ALPHA; ADHESION MOLECULES; BASEMENT-MEMBRANE; DOUBLE-BLIND; INFLAMMATION; MODULATION; ALLERGEN; EXPRESSION;
D O I
10.1016/j.intimp.2013.08.021
中图分类号
R392 [医学免疫学]; Q939.91 [免疫学];
学科分类号
071005 [微生物学]; 100108 [医学免疫学];
摘要
Background: The aim of the study was to compare the influence of TNF antagonism and corticosteroid treatment on epithelial, smooth muscle and basement membrane component of airway remodeling in an experimental murine model of chronic asthma. Methods: We used 30 BALB/c mice. Group 1 not exposed to ovalbumin or any medication was designated as control group. Chronic asthma model was achieved in the other three groups with intraperitoneal (IP) and inhaled ovalbumin. Then, Group 2 received IP saline, Group 3 received IP dexamethasone and Group 4 received IF etanercept Epithelial, subepithelial smooth muscle and basement membrane thickness as well as goblet cells and mast cells were examined on samples isolated from left lung. Results: Etanercept treatment led to thinner epithelial and basement membrane layer and lower goblet and mast cell number than untreated asthmatic mice (p < 0.001, p = 0.001, p = 0.005 and p = 0.03 respectively). Neither epithelial and basement membrane thickness nor mast cell number was different among mice treated with etanercept and dexamethasone (p = 0.38, p = 0.79 and p = 051 respectively). However, etanercept group was associated with thicker subepithelial muscle layer but lower goblet cell number (p < 0.001 and p = 0.04 respectively) than dexamethasone group. Conclusions: Corticosteroids are more effective in decreasing smooth muscle mass while TNF antagonists in reducing goblet cell number in animal model of asthma. Therefore, further research is needed to assess the synergistic use of TNF antagonism and dexamethasone for more rational remodeling control. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码:768 / 773
页数:6
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