The costimulatory molecule SLAM is critical for pulmonary allergic responses

American Journal of Respiratory Cell and Molecular Biology
Ninghai WangPatricia W Finn

Abstract

T-cell activation plays an essential role in the generation of the pulmonary inflammation that is manifest in allergic asthma. Optimal T-cell activation requires not only presentation of antigen with the major histocompatibility complex, but also concurrent signaling through costimulatory molecules. The costimulatory molecule SLAM (Signaling Lymphocytic Activation Molecule, CD150) is a glycoprotein expressed on activated lymphocytes and antigen-presenting cells. Disruption of the SLAM gene demonstrated that SLAM-induced signal transduction pathways regulate cytokine production by T helper (Th)2 cells and macrophages. Here we tested the postulate that the costimulatory molecule SLAM may be critical for allergic inflammation in a murine model. SLAM-deficient mice did not manifest allergen-induced bronchoalveolar lavage eosinophilia, increased serum IgE, or heightened airway responses compared with wild-type mice. Allergen-induced Th2 cytokines and Th1 cytokines were decreased in SLAM-deficient mice. These data support the concept that SLAM plays a crucial role in allergic responses.

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Citations

Jan 5, 2007·Annual Review of Immunology·Cindy S MaStuart G Tangye
Jan 12, 2011·Annual Review of Immunology·Jennifer L CannonsPamela L Schwartzberg
Sep 6, 2007·The Journal of Immunology : Official Journal of the American Association of Immunologists·Kai Yu JenPatricia W Finn

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