Vaspin Can Not Inhibit TNF-α-Induced Inflammation of Human Umbilical Vein Endothelial Cells
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概要
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Visceral adipose tissue-derived serine protease inhibitor (vaspin) has been recently identified as an adipocytokine in a rat model of type 2 diabetes. Adipocytokines may directly influence the function of endothelial cells (ECs) and modulate inflammatory states. We therefore assessed the effects of vaspin on basal and TNF-α-stimulated human umbilical vein ECs. Vaspin (10-100 ng/ml, 24 hr) had no effects on both basal ECs morphology and TNF-α-induced (10 ng/ml, 24 hr) morphological damages. Vaspin did not inhibit the TNF-α (20 min) activation of JNK, p38 and NF-κB, but only slightly inhibited Akt. Furthermore, vaspin did not decrease the TNF-α (24 hr) induction of vascular cell adhesion molecule-1, intercellular adhesion molecule-1, endothelial selectin, and cyclooxygenase-2 protein expression as well as monocyte chemotactic protein-1, tissue factor, and plasmogen activator inhibitor-1 mRNA expression. The present results indicate that vaspin has no effects on normal ECs, and can not prevent TNF-α-induced inflammatory injury.
著者
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Yamawaki Hideyuki
Department Of Epidemiology Research Institute National Cardiovascular Center
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Hara Yukio
Department Of Veterinary Pharmacology School Of Veterinary Medicine And Animal Sciences Kitasato Uni
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Okada Muneyoshi
Department Of Veterinary Pharmacology Graduate School Of Agriculture And Life Sciences The Universit
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Fu Ben-Dong
Department of Clinical Veterinary Medicine, College of Animal Science and Veterinary Medicine, Jilin
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FU Ben-Dong
Department of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University
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