Propofol Attenuates Lipopolysaccharide-Induced Reactive Oxygen Species Production Through Activation of Nrf2/GSH and Suppression of NADPH Oxidase in Human Alveolar Epithelial Cells

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• 作者：Hung-Te Hsu ; Yu-Ting Tseng ; Ya-Yun Hsu ; Kuang-I Cheng ; Shah-Hwa Chou…
• 关键词：propofol ; ROS ; Nrf2 ; NADPH oxidase ; inflammation
• 刊名：Inflammation
• 出版年：2015
• 出版时间：February 2015
• 年：2015
• 卷：38
• 期：1
• 页码：415-423
• 全文大小：695 KB
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• 刊物类别：Medicine
• 刊物主题：Medicine & Public Health
  Rheumatology
  Internal Medicine
  Pharmacology and Toxicology
  Pathology
  
• 出版者：Springer Netherlands
• ISSN：1573-2576

文摘

Propofol is a widely used intravenous anesthetic. The aim of this study was to investigate the roles of nuclear factor erythroid-2-related factor 2 (Nrf2) and NADPH oxidase (NOX) in propofol protection in inflammatory conditions induced by lipopolysaccharide (LPS). Human alveolar epithelial cells (A549 cell line) were incubated with propofol (10, 25, and 50 μmol/L) for 1 h and then treated with LPS (100 ng/mL) for 24 h. Results indicated that propofol not only attenuated LPS-induced expression of iNOS, NOX, and COX2, but decreased the production of ROS, NO, and PGE2 as well. Propofol also increased the GSH levels and the mRNA and protein levels of Nrf2. Notably, Nrf2 siRNA and the inhibitors of COX-2 and NOX attenuated the inhibition of propofol on ROS production. In conclusion, propofol reduced LPS-induced ROS production via inhibition of inflammatory factors and enhancement of Nrf2-related antioxidant defense, providing its cytoprotective evidence under inflammatory conditions.