期刊
INFLAMMATION
卷 27, 期 3, 页码 123-128出版社
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1023/A:1023813710941
关键词
oxidative stress; hydrogen peroxide; IL-8; IL-1 alpha
Oxidative stress, IL-1alpha, and IL-8 are known to contribute to mucosal inflammation of the gastrointestinal tract. We examined the IL-8 response after brief exposure to hydrogen peroxide induced oxidative stress in CaCo-2 cells (a human colon carcinoma cell line) and in human intestinal epithelial cells. In addition, we examined whether exposure to oxidative stress, followed by IL-1alpha, could modulate IL-8 production. A transient up-regulation of IL-8 mRNA expression was observed after hydrogen peroxide treatment. Hydrogen peroxide induced oxidative stress was also observed to promote IL-8 secretion. Exposure to hydrogen peroxide, followed by IL-1alpha, enhanced IL-8 production over that achieved with IL-1alpha alone. Thus, oxidative stress and IL-1alpha were observed to cooperatively enhance IL-8 production.
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