|Anti-interleukin-17 antibodies attenuate airway inflammation in tobacco-smoke-exposed mice|
|Shen, Ning1; Wang, Jing1; Zhao, Mingwu1; Pei, Fei2; He, Bei1|
|关键词||Airway inflammation interleukin-17 antibody tobacco-smoke-exposed|
|WOS标题词||Science & Technology|
|关键词[WOS]||T-CELLS ; IL-17 ; CYTOKINE ; DISEASE ; INTERLEUKIN-17 ; EXPRESSION ; LIGAND ; MODEL ; COPD|
Context: Our previous study showed that the interleukin-17 (IL-17) concentration in lung tissue and in bronchoalveolar lavage fluid (BALF) of rats with tobacco-smoke-induced chronic obstructive pulmonary disease (COPD) was higher than that of control group. However, whether IL-17 inhibitor could decrease the effect of tobacco smoking is not known yet.
Objectives: To investigate the significance of IL-17 antibodies (Ab) in tobacco-smoke-exposed (TSE) mice.
Materials and methods: Male C57/BL6 mice were randomly divided into three groups: TSE group, TSE + anti-IL-17 Ab group, and control group. The number of cells in BALF and the concentrations of IL-17, IL-6, IL-8 and MUC5AC in BALF and lung tissue homogenate were measured. Pulmonary function was measured by pressure sensors, and histologic analysis of the lungs was done in each group.
Results: Lung function tests in TSE + anti-IL-17 Ab group were the same compared with TSE group (P > 0.05). The total cell count and the number of neutrophil cells in BALF were significantly higher in TSE group than the normal control group (P < 0.01). Compared with the TSE group, the total cell count in TSE + anti-IL-17 Ab group was decreased, and the percentage of neutrophils in BALF was highly decreased (P < 0.01). Airway inflammation was alleviated in TSE + anti-IL-17 Ab group by histologic analysis. The concentrations of IL-17 in lung tissue were significantly lower in TSE + anti-IL-17 Ab group than in TSE group (P < 0.01). IL-17 was mainly expressed in the epithelial cells in the airways of TSE mice. The concentration of IL-6, IL-8 and MUC5AC in BALF was decreased in TSE + anti-IL-17 Ab group compared with TSE group.
Discussion and conclusions: These data support a potential role for IL-17 in airway neutrophilic inflammation in TSE mice. Anti-IL-17 decreased the number of neutrophils as well as the concentration of MUC5AC in the BALF and attenuated neutrophilic airway inflammation.
|作者单位||1.Peking Univ, Hosp 3, Dept Resp Med, Beijing 100191, Peoples R China|
2.Peking Univ, Hlth Sci Ctr, Dept Pathol, Beijing 100191, Peoples R China
|Shen, Ning,Wang, Jing,Zhao, Mingwu,et al. Anti-interleukin-17 antibodies attenuate airway inflammation in tobacco-smoke-exposed mice[J]. INHALATION TOXICOLOGY,2011,23(4):212-218.|
|APA||Shen, Ning,Wang, Jing,Zhao, Mingwu,Pei, Fei,&He, Bei.(2011).Anti-interleukin-17 antibodies attenuate airway inflammation in tobacco-smoke-exposed mice.INHALATION TOXICOLOGY,23(4),212-218.|
|MLA||Shen, Ning,et al."Anti-interleukin-17 antibodies attenuate airway inflammation in tobacco-smoke-exposed mice".INHALATION TOXICOLOGY 23.4(2011):212-218.|