Amelioration of allergic airway inflammation in mice by regulatory IL-35 through dampening inflammatory dendritic cells

Autor: Chun-Kwok Wong, Jie Dong, Christopher Wai-Kei Lam, Zhe Cai, Delong Jiao, Minjie Chu
Rok vydání: 2015
Předmět:
Zdroj: Allergy. 70:921-932
ISSN: 0105-4538
Popis: Background IL-35, a new member of the IL-12 family, is an inhibitory cytokine produced by regulatory T and B lymphocytes that play a suppressive role in the inflammatory diseases. This study focuses on the cellular mechanism regulating the anti-inflammatory activity of IL-35 in asthmatic mice. Methods Ovalbumin-induced asthmatic and humanized asthmatic mice were adopted to evaluate the in vivo anti-inflammatory activities of IL-35. For monitoring the airway, Penh value (% baseline) was measured using a whole-body plethysmograph. Results In this study using ovalbumin-induced asthmatic mice, we observed that intraperitoneal injection of IL-35 during the allergen sensitization stage was more efficient than administration in the challenge stage for the amelioration of airway hyper-responsiveness. This was reflected by the significantly reduced concentration of asthma-related Th2 cytokines IL-5 and IL-13, as well as eosinophil counts in bronchoalveolar lavage fluid (all P
Databáze: OpenAIRE