کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2567153 1128316 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Sphingosine kinase 1 regulates mucin production via ERK phosphorylation
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی پزشکی ریوی و تنفسی
پیش نمایش صفحه اول مقاله
Sphingosine kinase 1 regulates mucin production via ERK phosphorylation
چکیده انگلیسی

Our previous report showed that inhibition of sphingosine kinase (SphK) ameliorates eosinophilic inflammation and mucin production in a mouse asthmatic model. To clarify the role of SphK in airway mucin production, we utilized the mouse asthmatic model and found that both SphK and MUC5AC expression were increased and co-localized in airway epithelium. Next we cultured normal human bronchial epithelial cells in an air–liquid interface and treated with IL-13 to induce their differentiation into goblet cells. We found that SphK1 and MUC5AC expression was increased by IL-13 treatment at both protein and mRNA levels, whereas SphK2 expression was not changed. N,N-dimethylsphingosine (DMS), a potent SphK inhibitor, decreased MUC5AC expression up-regulated by IL-13 treatment. Furthermore, DMS inhibited IL-13-induced ERK1/2 phosphorylation but neither p38 MAPK nor STAT6 phosphorylation. These results suggest that SphK1 is involved in MUC5AC production induced by IL-13 upstream of ERK1/2 phosphorylation, and independent of STAT6 phosphorylation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Pulmonary Pharmacology & Therapeutics - Volume 23, Issue 1, February 2010, Pages 36–42
نویسندگان
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