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Alkyl-glycerophosphate-mediated C-C motif chemokine 2 secretion induces oxidative stress via increased PPARγ activation in human umbilical vein endothelial cells


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タイトル: Alkyl-glycerophosphate-mediated C-C motif chemokine 2 secretion induces oxidative stress via increased PPARγ activation in human umbilical vein endothelial cells
著者: Tsukahara, Tamotsu / Yamagishi, Shuhei / Matsuda, Yoshikazu / Haniu, Hisao
発行日: 2018年 9月
出版者: Elsevier Masson SAS
引用: Biomedicine and Pharmacotherapy, 106, pp.686-691; 2018
抄録: We previously showed that an alkyl-ether analog of lysophosphatidic acid, AGP (alkyl-glycerophosphate), accumulates in human atherosclerotic plaques and is a potent agonist of peroxisome proliferator-activated receptor-gamma (PPARγ). On the other hand, cyclic phosphatidic acid (cPA), similar in structure to AGP, can negatively regulate PPARγ. However, in this study, cPA had no effect on the expression and secretion of C-C motif chemokine 2 (CCL-2), a chemokine that is also linked to inflammatory responses and atherosclerosis. We showed that AGP enhances CCL-2 mRNA expression and secretion in a dose-dependent manner. Furthermore, oxidative stress plays a major role in the pathology of cardiovascular diseases; we showed that AGP triggers ROS generation and lipid peroxidation and that ROS and 8-isoprostane generation can be suppressed by a PPARγ antagonist. These results suggest that an imbalance of the PPARγ agonist-antagonist equilibrium is involved in changes in cellular functions, including ROS generation and lipid peroxidation.
キーワード: AGP / CCL-2 / Peroxidation / PPARγ / ROS
URI: http://hdl.handle.net/10069/38499
ISSN: 07533322
DOI: 10.1016/j.biopha.2018.07.012
権利: © 2018 Elsevier Masson SAS. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
資料タイプ: Journal Article
原稿種類: none
出現コレクション:050 学術雑誌論文

引用URI : http://hdl.handle.net/10069/38499

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