Erschienen in:
01.12.2014
Dual Effects of Respiratory Syncytial Virus Infections on Airway Inflammation by Regulation of Th17/Treg Responses in Ovalbumin-Challenged Mice
verfasst von:
Jia Wang, Lingwen Kong, Qingli Luo, Bei Li, Jinfeng Wu, Baojun Liu, Xiao Wu, Jingcheng Dong
Erschienen in:
Inflammation
|
Ausgabe 6/2014
Einloggen, um Zugang zu erhalten
Abstract
We investigated the effects of respiratory syncytial virus (RSV) infections on ovalbumin (OVA)-challenged mice via regulation of Th17/Treg cell responses. BALB/c mice were challenged with OVA, followed by RSV infections twice. In OVA-challenged mice, the secretion of Th2/Th17-type cytokines, airway hyperresponsiveness and inflammation were significantly inhibited by initial RSV infection. Moreover, the in vivo findings demonstrated that initial RSV infection reversed the imbalance of Th17/Treg responses. In contrast, RSV re-infection strengthened Th2/Th17-type cytokine secretion, airway hyperresponsiveness, and inflammation, especially for lymphocyte infiltration in OVA-challenged mice. Meanwhile, RSV re-infection enhanced the imbalanced Th17/Treg responses. Upon all results reveal that RSV-induced respiratory infections may lead to dual effects pertaining to allergic airway inflammation by regulation of Th17/Treg responses.