التفاصيل البيبلوغرافية
| العنوان: |
Vaspin inhibits cytokine-induced nuclear factorkappa B activation and adhesion molecule expression via AMP-activated protein kinase activation in vascular endothelial cells. |
| المؤلفون: |
Chang Hee Jung, Min Jung Lee, Yu Mi Kang, Yoo La Lee, Hae Kyeong Yoon, Sang-Wook Kang, Woo Je Lee, Joong-Yeol Park |
| المصدر: |
Cardiovascular Diabetology; 2014, Vol. 13 Issue 1, p2-26, 25p, 7 Graphs |
| مصطلحات موضوعية: |
ENDOTHELIAL cells, CELL adhesion molecules, CYTOKINES, PROTEIN kinases, PEOPLE with diabetes |
| مستخلص: |
Background Vaspin is an adipocytokine that was recently identified in the visceral adipose tissue of diabetic rats and has anti-diabetic and anti-atherogenic effects. We hypothesized that vaspin prevents inflammatory cytokine-induced nuclear factor-kappa B (NF-κB) activation by activating AMP-activated protein kinase (AMPK) in vascular endothelial cells. Methods We examined the effects of vaspin on NF-κB activation and the expression of the NF-κBmediated genes intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1), E-selectin, and monocyte chemoattractant protein-1 (MCP-1). Human aortic endothelial cells (HAECS) were used. Tumor necrosis factor alpha (TNFα) was used as a representative proinflammatory cytokine. Results Treatment with vaspin significantly increased the phosphorylation of AMPK and acetyl-CoA carboxylase, the down-stream target of AMPK. Furthermore, treatment with vaspin significantly decreased TNFα-induced activation of NF-κB, as well as the expression of the adhesion molecules ICAM-1, VCAM-1, E-selectin, and MCP-1. These effects were abolished following transfection of AMPKα1-specific small interfering RNA. In an adhesion assay using THP-1 cells, vaspin reduced TNFα-induced adhesion of monocytes to HAECS in an AMPK-dependent manner. Conclusions Vaspin might attenuate the cytokine-induced expression of adhesion molecule genes by inhibiting NF-κB following AMPK activation. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
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