https://scholars.lib.ntu.edu.tw/handle/123456789/627711
標題: | Inhibition of Semicarbazide-sensitive Amine Oxidase Reduces Atherosclerosis in Cholesterol-fed New Zealand White Rabbits | 作者: | SHU-HUEI WANG Yu, Tse-Ya CHI-SHENG HUNG Yang, Chung-Yi MAO-SHIN LIN Su, Chien-Yin YUH-LIEN CHEN HSIEN-LI KAO LEE-MING CHUANG FENG-CHIAO TSAI HUNG-YUAN LI |
關鍵字: | VASCULAR ADHESION PROTEIN-1; SMOOTH-MUSCLE-CELLS; LEUKOCYTE TRAFFICKING; ENDOTHELIAL-CELLS; MOUSE; MICE; OVEREXPRESSION; INFLAMMATION; MIGRATION; PXS-4728A | 公開日期: | 18-六月-2018 | 出版社: | NATURE PUBLISHING GROUP | 卷: | 8 | 期: | 1 | 來源出版物: | Scientific reports | 摘要: | Inflammation, oxidative stress, and the formation of advanced glycated end-products (AGEs) are important components of atherosclerosis. Vascular adhesion protein-1 (VAP-1) participates in inflammation. Its enzymatic activity, semicarbazide-sensitive amine oxidase (SSAO), can catalyze oxidative deamination reactions to produce hydrogen peroxide and aldehydes, leading to the subsequent generation of AGEs. This study aimed to investigate the effect of VAP-1/SSAO inhibition on atherosclerosis. In our study, immunohistochemical staining showed that atherosclerotic plaques displayed higher VAP-1 expression than normal arterial walls in apolipoprotein E-deficient mice, cholesterol-fed New Zealand White rabbits and humans. In cholesterol-fed rabbits, VAP-1 was expressed on endothelial cells and smooth muscle cells in the thickened intima of the aorta. Treatment with PXS-4728A, a selective VAP-1/SSAO inhibitor, in cholesterol-fed rabbits significantly decreased SSAO-specific hydrogen peroxide generation in the aorta and reduced atherosclerotic plaques. VAP-1/SSAO inhibition also lowered blood low-density lipoprotein cholesterol, reduced the expression of adhesion molecules and inflammatory cytokines, suppressed recruitment and activation of macrophages, and decreased migration and proliferation of SMC. In conclusion, VAP-1/SSAO inhibition reduces atherosclerosis and may act through suppression of several important mechanisms for atherosclerosis. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/627711 | ISSN: | 2045-2322 | DOI: | 10.1038/s41598-018-27551-6 |
顯示於: | 醫學系 |
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