S128 Soluble ADAM33 Causes Airway Remodelling To Promote Allergic Airway Inflammation

Soluble ADAM33 initiates airway remodeling to promote susceptibility for allergic asthma in early life

Asthma is a chronic inflammatory airways disease that usually begins in early life and involves gene-environment interactions. Although most asthma exhibits allergic inflammation, many allergic individuals do not have asthma. Here, we report how the asthma gene a disintegrin and metalloprotease 33 (ADAM33) acts as local tissue susceptibility gene that promotes allergic asthma. We show that enzy...

Allergic Airway Inflammation

Soluble St2 Blocks Il-33 Signaling in Allergic Airway Inflammation

SOLUBLE ST2 BLOCKS IL-33 SIGNALING IN ALLERGIC AIRWAY INFLAMMATION Hiroko Hayakawa1, Morisada Hayakawa1, Akihiro Kume2, and Shin-ichi Tominaga1 From the 1Department of Biochemistry and 2Division of Genetic Therapeutics, Jichi Medical University, 3311-1 Yakushiji, Shimotsuke-shi, Tochigi 329-0498, Japan Running Title: Suppression of IL-33 signaling by soluble ST2 Address correspondence to: Moris...

Asymptomatic airway hyperresponsiveness: relationships with airway inflammation and remodelling.

To study the physiopathology and significance of asymptomatic airway hyperresponsiveness (AHR), the clinical and bronchial immunohistological parameters were evaluated in subjects with asymptomatic and symptomatic AHR. Asymptomatic subjects with AHR (eight females/two males, no respiratory symptoms, provocative concentration of methacholine causing a 20% fall in forced expiratory volume in one ...

Surfactant and allergic airway inflammation.

Pulmonary surfactant is a complex mixture of unique proteins and lipids that covers the airway lumen. Surfactant prevents alveolar collapse and maintains airway patency by reducing surface tension at the air-liquid interface. Furthermore, it provides a defence against antigen uptake by binding foreign particles and enhancing cellular immune responses. Allergic asthma is associated with chronic ...