Abstract：
:Oxygen radicals are important regulators in Helicobacter pylori-induced gastric ulceration and carcinogenesis. IL-8 may be regulated by oxidant-sensitive transcription factors, NF-kappaB, and AP-1. The present study aims to investigate whether H. pylori-induced IL-8 expression is regulated by NF-kappaB and AP-1 in gastric epithelial AGS cells and whether this transcriptional regulation of IL-8 is inhibited by N-acetylcysteine (NAC). As a result, H. pylori induced the expression of mRNA and protein for IL-8 via activation of NF-kappaB and AP-1. NF-kappaB activation accompanied by a decrease in I-kappaBalpha and activated AP-1 complex was a c-jun/c-fos heterodimer in H. pylori-infected AGS cells. NAC inhibited H. pylori-induced activation of transcription factors and IL-8 expression in AGS cells. In conclusion, oxygen radicals induce the activation of NF-kappaB and AP-1 and IL-8 expression. Antioxidants such as NAC might be useful anti-inflammatory agents by inhibiting activation of transcription factors and decreasing IL-8 production in H. pylori-induced gastric inflammation.
journal_name
Dig Dis Scijournal_title
Digestive diseases and sciencesauthors
Chu SH,Kim H,Seo JY,Lim JW,Mukaida N,Kim KHdoi
10.1023/a:1021963007225subject
Has Abstractpub_date
2003-02-01 00:00:00pages
257-65issue
2eissn
0163-2116issn
1573-2568journal_volume
48pub_type
杂志文章abstract：:Our objective was to study the predictive value of the family history in the initial diagnosis of hereditary hemochromatosis. Sixty five hemochromatosis proband patients and 66 control patients with chronic liver disease were assessed for a family history of hemochromatosis, cirrhosis, diabetes, and arthritis. There w...
journal_title：Digestive diseases and sciences
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journal_title：Digestive diseases and sciences
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