当前位置： SCI文献检索 > BIOCHEMICAL AND BIOPHYSICAL RESEARCH COMMUNICATIONS期刊下所有文献 > Ergothioneine inhibits oxidative stress- and TNF-alpha-induced NF-kappa B activation and interleukin-8 release in alveolar epithelial cells.

Ergothioneine inhibits oxidative stress- and TNF-alpha-induced NF-kappa B activation and interleukin-8 release in alveolar epithelial cells.

Abstract：

:Oxidants and inflammatory mediators such as tumour necrosis factor-alpha (TNF-alpha) activate transcription factors such as NF-kappa B. Interleukin-8 (IL-8) is a ubiquitous inflammatory chemokine that mediates a multitude of inflammatory events in the lung. Ergothioneine is a naturally occurring thiol compound, which possesses antioxidant property. The aim of this study was to determine whether ergothioneine can inhibit the hydrogen peroxide (H(2)O(2))- and TNF-alpha-mediated activation of NF-kappa B and the release of IL-8 in human alveolar epithelial cells (A549). Treatment of A549 cells with H(2)O(2) (100 microM) and TNF-alpha (10 ng/ml) significantly increased NF-kappa B activation using a reporter assay. Ergothioneine inhibited both H(2)O(2)- and TNF-alpha-mediated activation of NF-kappa B. Both H(2)O(2) and TNF-alpha significantly increased IL-8 release, which was inhibited by pre-treatment of A549 cells with ergothioneine compared to the control untreated cells. Ergothioneine also abolished the transcriptional activation of IL-8 in an IL-8-chloramphenicol acetyltransferase (CAT) reporter system, transfected into A549 cells. This indicates a molecular mechanism for the anti-inflammatory effects of ergothioneine.

journal_name

Biochem Biophys Res Commun

journal_title

Biochemical and biophysical research communications

authors

Rahman I,Gilmour PS,Jimenez LA,Biswas SK,Antonicelli F,Aruoma OI

doi

10.1016/s0006-291x(03)00224-9

subject

Has Abstract

pub_date

2003-03-21 00:00:00

pages

860-4

issue

4

eissn

0006-291X

issn

1090-2104

pii

S0006291X03002249

journal_volume

302

pub_type

杂志文章

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