%0 Journal Article %T Mast Cells Suppress IL-33 Induced Innate-Type Allergic Airway Inflammation By Promoting Regulatory T Cell Expansion %A Cezmi A. Akdis %A Hideaki Morita %A Hirohisa Saito %A Kenji Matsumoto %A Susumu Nakae %J Journal of Allergy and Clinical Immunology %D 2017 %R 10.1016/j.jaci.2016.12.542 %X IL-33 is a member of the IL-1 cytokine family and is considered to be crucial for the induction of type 2 immune responses. Since mast cells are known to secrete inflammatory mediators in response to IL-33 in vitro even in the absence of immunoglobulin E, mast cells are considered to be a major effector cells in allergic inflammation. However, the roles of mast cells in IL-33-induced innate-type allergic airway inflammation in vivo remain unclear. The aim of this study is to clarify the roles of mast cells in IL-33-induced innate-type allergic airway inflammation. %U https://www.jacionline.org/article/S0091-6749(16)32060-7/abstract