Protection of mice from allergen-induced asthma by selenite. Prevention of eosinophil infiltration by inhibition of NF-κB activation

Dae Won Jeong, Min Hyuk Yoo, Tae Soo Kim, Jae-Hong Kim, Ick Young Kim

Research output: Contribution to journalArticle

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Abstract

The potential anti-inflammatory effect of sodium selenite in a mouse model of asthma was investigated. Selenite was injected into the peritoneum of allergen (ovalbumin)-sensitized mice before allergen challenge. Ovalbumin challenge resulted in activation of the transcription factor NF-κB and an increase in the expression of cell adhesion molecules (intercellular adhesion molecule 1, vascular cell adhesion molecule 1, and E-selectin, which are encoded by NF-κB-dependent genes) in lung tissue as well as in the recruitment of eosinophils to lung airways. These effects of ovalbumin challenge were all inhibited by pretreatment of mice with selenite. Selenite administration also increased the activity of selenium-dependent glutathione peroxidase in lung tissue. Furthermore, supplementation of A549 human airway epithelial cell cultures with selenite increased glutathione peroxidase activity as well as inhibited both the generation of hydrogen peroxide and the activation of NF-κB induced by tumor necrosis factor α in these cells. Selenite also reversed in vitro the activation of NF-κB induced by this cytokine in intact A549 cells. These results suggest that selenite regulates the activity of NF-κB by increasing the activity of glutathione peroxidase, thereby removing potential activators of NF-κB, and possibly also by direct oxidation of critical sulfhydryl groups of this transcription factor. These effects of selenite likely underlie its anti-inflammatory action in asthma.

Original languageEnglish
Pages (from-to)17871-17876
Number of pages6
JournalJournal of Biological Chemistry
Volume277
Issue number20
DOIs
Publication statusPublished - 2002 May 17

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Selenious Acid
Infiltration
Eosinophils
Allergens
Asthma
Chemical activation
Ovalbumin
Glutathione Peroxidase
Lung
Anti-Inflammatory Agents
Transcription Factors
Tissue
Sodium Selenite
E-Selectin
Vascular Cell Adhesion Molecule-1
Peritoneum
Cell Adhesion Molecules
Intercellular Adhesion Molecule-1
Selenium
Cell culture

ASJC Scopus subject areas

  • Biochemistry

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Protection of mice from allergen-induced asthma by selenite. Prevention of eosinophil infiltration by inhibition of NF-κB activation. / Jeong, Dae Won; Yoo, Min Hyuk; Kim, Tae Soo; Kim, Jae-Hong; Kim, Ick Young.

In: Journal of Biological Chemistry, Vol. 277, No. 20, 17.05.2002, p. 17871-17876.

Research output: Contribution to journalArticle

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