Superoxide dismutase 3 controls adaptive immune responses and contributes to the inhibition of ovalbumin-induced allergic airway inflammation in mice.

Antioxidants & Redox Signaling
Myung-Ja KwonTae-Yoon Kim

Abstract

The extracellular superoxide dismutase 3 (SOD3) is an isoform of SOD. Extensive studies have been focused on role of SOD3 as an antioxidant. However, the role of SOD3 in the immune responses that contribute to the inhibition of allergic lung inflammation has not been investigated. Here, we report for the first time that SOD3 specifically inhibits dendritic cell maturation. Subsequently, SOD3 controls T cell activation and proliferation, and T helper 2 (Th2) and Th17 cell differentiation. As a consequence, the administration of SOD3 into mice alleviated Th2-cell-mediated ovalbumin (OVA)-induced allergic asthma. In addition, we demonstrated that SOD3 inhibits OVA-induced airway extracellular remodeling and Th2 cell trafficking. Through mass spectrometry analysis, the proteins interacting with SOD3 in the lung of asthma were identified. And it was revealed that signaling molecules, such as transforming growth factor (TGF) and epidermal growth factor (EGF) receptor, adhesion and adaptor molecules, kinases, phosphatases, NADPH oxidase, and apoptosis-related factor, were involved, which were altered by administration of SOD3. Relatively severe asthma was observed in SOD3 KO mice and was ameliorated by both the administration of SOD3 ...Continue Reading

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Citations

Jul 16, 2014·BioMed Research International·Rodrigo Haddad, Felipe Saldanha-Araujo
Aug 12, 2014·International Immunopharmacology·Tae Young JangYoung Hyo Kim
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Datasets Mentioned

BETA
GM-CSF

Methods Mentioned

BETA
transgenic
flow cytometry
bronchoalveolar
lavage
bronchoalveolar lavage
enzyme-linked immunosorbent assay
scanning electron microscopy
ELISA
transmission electron microscopy
immunoprecipitation

Software Mentioned

Scaffold
Proteome
Cell Quest

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