Academic Journal

Protein Kinase C Activation by Helicobacter pylori in Human Gastric Epithelial Cells Limits Interleukin-8 Production Through Suppression of Extracellular Signal-Regulated Kinase

التفاصيل البيبلوغرافية
العنوان: Protein Kinase C Activation by Helicobacter pylori in Human Gastric Epithelial Cells Limits Interleukin-8 Production Through Suppression of Extracellular Signal-Regulated Kinase
المؤلفون: Yoshihisa Nozawa, Katsushi Nishihara, Yushiro Akizawa, Naoki Orimoto, Motoko Nakano, Tatsuya Uji, Hirofusa Ajioka, Atsuhiro Kanda, Naosuke Matsuura, Mamoru Kiniwa
المصدر: Journal of Pharmacological Sciences, Vol 94, Iss 3, Pp 233-239 (2004)
بيانات النشر: Elsevier, 2004.
سنة النشر: 2004
المجموعة: LCC:Therapeutics. Pharmacology
مصطلحات موضوعية: Therapeutics. Pharmacology, RM1-950
الوصف: Helicobacter pylori (H. pylori) infection of gastric epithelial cells has been shown to induce interleukin (IL)-8 production, but the signal transduction mechanism leading to IL-8 production has not been clearly defined. Here, we investigate the role of protein kinase C (PKC) in the mechanism of induction of IL-8 release by H. pylori in human gastric epithelial cells. In MKN45 cells, H. pylori-induced IL-8 release was enhanced by treatment with PKC inhibitors (GF109203X and calphostin C) and PKC depletion, which completely inhibited PKC activity. Moreover, PKC inhibitors and PKC depletion increased extracellular signal-regulated kinase (ERK) activity and phosphorylation, but not calcium /calmodulin-dependent protein kinase II (CaMK II) activity, in response to H. pylori infection. PKC activated by H. pylori inhibited activation of ERK induced by H. pylori without affecting the CaMK II activity and negatively regulated IL-8 production in human gastric epithelial cells. Keywords:: H. pylori, interleukin-8, protein kinase C, extracellular signal-regulated kinase, MKN45 cell
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1347-8613
Relation: http://www.sciencedirect.com/science/article/pii/S1347861319324909; https://doaj.org/toc/1347-8613
DOI: 10.1254/jphs.94.233
URL الوصول: https://doaj.org/article/c0ee49110b3245af8e397cc0ff5cb874
رقم الانضمام: edsdoj.0ee49110b3245af8e397cc0ff5cb874
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:13478613
DOI:10.1254/jphs.94.233