دورية أكاديمية
Activation of Adenosine A3 Receptor Alleviates TNF-α-Induced Inflammation through Inhibition of the NF-κB Signaling Pathway in Human Colonic Epithelial Cells
| العنوان: | Activation of Adenosine A3 Receptor Alleviates TNF-α-Induced Inflammation through Inhibition of the NF-κB Signaling Pathway in Human Colonic Epithelial Cells |
|---|---|
| المؤلفون: | Tianhua Ren, Yumei Qiu, Weiyun Wu, Xiao Feng, Shicai Ye, Zhuang Wang, Ting Tian, Yanting He, Caiyuan Yu, Yu Zhou |
| المصدر: | Mediators of Inflammation, Vol 2014 (2014) |
| بيانات النشر: | Wiley, 2014. |
| سنة النشر: | 2014 |
| المجموعة: | LCC:Pathology |
| مصطلحات موضوعية: | Pathology, RB1-214 |
| الوصف: | To investigate the expression of adenosine A3 receptor (A3AR) in human colonic epithelial cells and the effects of A3AR activation on tumor necrosis factor alpha (TNF-α-) induced inflammation in order to determine its mechanism of action in human colonic epithelial cells, human colonic epithelial cells (HT-29 cells) were treated with different concentrations of 2-Cl-IB-MECA prior to TNF-α stimulation, followed by analysis of NF-κB signaling pathway activation and downstream IL-8 and IL-1β production. A3AR mRNA and protein were expressed in HT-29 cells and not altered by changes in TNF-α or 2-Cl-IB-MECA. Pretreatment with 2-Cl-IB-MECA prior to stimulation with TNF-α attenuated NF-κB p65 nuclear translocation as p65 protein decreased in the nucleus of cells and increased in the cytoplasm, inhibited the degradation of IκB-α, and reduced phosphorylated-IκB-α level significantly, compared to TNF-α-only-treated groups. Furthermore, 2-Cl-IB-MECA significantly decreased TNF-α-stimulated IL-8 and IL-1β mRNA expression and secretion, compared to the TNF-α-only treated group. These results confirm that A3AR is expressed in human colonic epithelial cells and demonstrate that its activation has an anti-inflammatory effect, through the inhibition of NF-κB signaling pathway, which leads to inhibition of downstream IL-8 and IL-1β expression. Therefore, A3AR activation may be a potential treatment for gut inflammatory diseases such as inflammatory bowel disease. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0962-9351 1466-1861 |
| Relation: | https://doaj.org/toc/0962-9351; https://doaj.org/toc/1466-1861 |
| DOI: | 10.1155/2014/818251 |
| URL الوصول: | https://doaj.org/article/6233842b2af243fa8df7dc38446585fe |
| رقم الأكسشن: | edsdoj.6233842b2af243fa8df7dc38446585fe |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 09629351 14661861 |
|---|---|
| DOI: | 10.1155/2014/818251 |