کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
2019473 | 1069037 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On the biosynthesis of 15-HETE and eoxin C4 by human airway epithelial cells
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
Several lines of evidence indicate that 15-lipoxygenase type 1 (15-LO-1) plays a pathophysiological role in asthma. The aim for this study was to investigate the 15-LO-1 expression and activity in primary human airway epithelial cells cultivated on micro-porous filters at air-liquid interface. Incubation of human airway epithelial cells with arachidonic acid led to the formation of 15(S)-hydroxy-eicosatetraenoic acid (15-HETE) and exposing the cells to bacteria or physical injury markedly increased their production of 15-HETE. The cells were also found to convert arachidonic acid to eoxin C4 (EXC4). Subcellular fractionation revealed that the conversion of EXA4 to EXC4 was catalyzed by a soluble glutathione transferase (GST). The GST P1-1 enzyme was found to possess the highest activity of the investigated soluble GSTs. Following IL-4 treatment of airway epithelial cells, microarray analysis confirmed high expression of 15-LO-1 and GST P1-1, and immunohistochemical staining of bronchial biopsies revealed co-localization of 15-LO-1 and GST P1-1 in airway epithelial cells. These results indicate that respiratory infection and cell injury may activate the 15-LO pathway in airway epithelial cells. Furthermore, we also demonstrate that airway epithelial cells have the capacity to produce EXC4.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Prostaglandins & Other Lipid Mediators - Volume 121, Part A, September 2015, Pages 83-90
Journal: Prostaglandins & Other Lipid Mediators - Volume 121, Part A, September 2015, Pages 83-90
نویسندگان
Ã
sa Brunnström, Ylva Tryselius, Stina Feltenmark, Erik Andersson, Helene Leksell, Anna James, Bengt Mannervik, Barbro Dahlén, Hans-Erik Claesson,